ad Document reading apparatus and document reading method By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST Provided is a document reading apparatus capable of suppressing a shock that may occur when a trailing edge of a tabbed sheet passes through a roller pair. In an image reading section, when a document to be read is the tabbed sheet, a timing to start separation of the roller pair in response to detection of a trailing edge of the document is delayed by a time period corresponding to a tab length with respect to the timing to start separation when a document other than the tabbed sheet is conveyed. Thus, it is possible to prevent the shock when the trailing edge of the tabbed sheet passes through the roller pair, and to thereby suppress image reading failure due to the shock. Full Article
ad Power conversion system with adjustable frequency By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A power conversion system with adjustable frequency includes an electric transformer, a pulse width modulation driving controller, a switching transistor, a first and second voltage division resistors connected in series, an output diode and an output capacitor. The electric transformer receives the input power and generates the sensing current and induced current. The sensing current flows through the first and second voltage division resistors to generate the feedback signal. The induced current flows through the output diode and output capacitor to generate the output voltage to supply the load. The pulse width modulation driving controller determine whether the loading state of the load based on the feedback signal, and change the switching frequency according to the loading state and the input power, thereby increasing the whole efficiency of the power conversion system and achieving the aim of dynamically adjusting the optimal frequency. Full Article
ad Additional electric power receiving method and device replacing conventional grounding with negative voltage source By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An additional electric power receiving method replacing conventional grounding with a negative voltage source includes the step of transmitting electromagnetic wave or current from a power supply source to a rectifier, wherein a grounding end of the rectifier is in electrical communication with the negative voltage source, and the negative voltage source is selected from a negative potential intrinsic of an organism. A device applicable to the electric power receiving method includes a rectifier having an input end and two output ends, wherein the input end is in electrical communication with a power supply source, and rectified direct current is transmitted from the output ends. With the method and device, not only an increase in additional electric power obtained is achieved, but conversion efficiency and stability of current and electromagnetic wave is enhanced. Full Article
ad Noise suppression circuit for power adapter By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A noise suppression circuit for a power adapter is disclosed. The noise suppression circuit can reduce or eliminate adapter-induced noise that could interfere with an electronic device powered by the adapter. In one example, the noise suppression circuit can include an active circuit to detect and attenuate or cancel the induced noise. In another example, the noise suppression circuit can include an RLC circuit in parallel with the adapter choke to suppress the induced noise at the operating frequencies of the powered electronic device. In still another example, the noise suppression circuit can include a modified adapter Y capacitor connection so as to bypass the adapter choke, thereby reducing or eliminating the choke's induced noise. Full Article
ad Optical head device and optical disc device By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT An optical head device (11) provided with: an optical element (36) for transmissively diffracting a light beam emitted from a semiconductor laser (34), generating a zero-order diffracted light beam and ±1-order diffracted light beams; and a photodetector (40) for receiving the zero-order diffracted light beam and the +1-order diffracted light beam after reflection from an optical disc (2). The photodetector (40) includes a primary light receiving section (400) for receiving the zero-order diffracted light beam, and a first secondary light receiving section (401) disposed outward from the primary light receiving section (400). The first secondary light receiving section (401) is positioned to detect an outer portion of the received light spot of the +1-order diffracted light beam, performs photoelectric conversion of this portion, and outputs a secondary detected signal. Full Article
ad Heater to keep reader head in stable temperature range By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT Technologies are described herein for utilizing a head heater to test temperature stability of a head of a storage device and to prevent the head from operating in an unstable temperature condition. A first power level may be applied to a head heater of a head in a storage device, the first power level configured to simulate a temperature condition in the head. An instability of the head is determined and the temperature condition and the instability of the head are recorded in a memory. The process may be repeated to develop a range of temperature conditions in which the head exhibits instability. The range of temperature conditions and the head heater may then be utilized to prevent the head from operating in an unstable temperature condition during normal operation. Full Article
ad Optical recording and reading method, optical recording and reading apparatus, optical recording medium, and method for producing an optical recording medium By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT An optical recording medium includes a recording and reading layer that is previously staked or formed afterword and has no concavo-convex pattern for tracking control, and a servo layer in which a concavo-convex pattern or a groove for tracking control is formed. Information can be recorded in the recording and reading layer while tracking is performed using the servo layer. Full Article
ad Thermally-assisted magnetic recording head having a plasmon generator By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A return path section includes first and second yoke portions and first, second and third columnar portions. The first and second yoke portions and the first columnar portion are located on the same side in the direction of travel of the recording medium relative to a wave guide core. The second and third columnar portions are located on opposite sides of a plasmon generator and connected to a shield. The first yoke portion connects a main pole to the first columnar portion. The second yoke portion connects the first columnar portion to the second and third columnar portions. A coil is wound around the first columnar portion. Full Article
ad Magnetic recording head and disk device including the same By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A recording head for recording information on a rotating recording medium of a storage device includes a main magnetic pole which generates a recording magnetic field in a direction perpendicular to a recording medium facing surface of the magnetic recording head, and a light generating element which is provided on a leading side of the main magnetic pole, and generates light for heating the recording layer of the recording medium. The main magnetic pole includes an end surface facing the light generating element that is inclined with respect to the direction perpendicular to the recording medium facing surface toward the light generating element. Full Article
ad Heat-dissipating stepped slider for a heat-assisted magnetic recording head By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT In a heat-assisted magnetic recording (HAMR) hard disk drive, a heat-dissipating head slider assembly is described in which the slider is stepped on the disk-opposing side and a HAMR laser module is mounted on the lower surface to assist with dissipation of heat from the laser. The lower surface is a surface of the main body of the slider and is composed primarily of a first material, and the slider may include a heat-dissipating plate that forms the higher stepped surface, where the plate is composed of a second material that has a higher thermal conductivity than the first material, such as silicon. Full Article
ad Optical disk device and equalizer adjustment method By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT An optical disk device includes an optical pickup that directs light beams onto a recording surface of an optical disk and receives reflected light, a signal generating unit that generates playback signals based on reflected light received by the optical pickup, an equalizer adjustment unit that performs equalizer adjustment of the playback signals, and an adjustment control unit. The adjustment control unit controls the equalizer adjustment unit so as to perform equalizer adjustment of the playback signals according to the playback signals based on reflected light from a management information area on a recording surface of the optical disk, the management information area including predetermined management information recorded thereon. Full Article
ad Data storage device adjusting laser input power to compensate for temperature variations By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A data storage device is disclosed comprising a head actuated over a disk, wherein the head comprises a laser configured to heat the disk while writing data to the disk. A temperature is measured, and a first input power is generated based on a first function of the measured temperature, wherein the first function compensates for a temperature dependent output power of the laser. A second input power is generated based on a second function of the measured temperature, wherein the second function compensates for a temperature dependent coercivity of the disk. The first input power is combined with the second input power to generate a write power applied to the laser while writing data to the disk. Full Article
ad Thermally conductive features for a heat-assisted magnetic recording head By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT In a heat-assisted magnetic recording hard disk drive, one or more thermally conductive features are incorporated to assist with dissipation of heat from a laser module that comprises a laser and a submount. The submount may be coupled to the slider with solder covering a wider adhesive area for enhanced conduction of heat away from the laser module and to the slider, one or both of the submount and the laser may include a surface coating that increases the thermal radiation of the corresponding component, and/or one or both of the submount and the laser may include fins configured to transfer heat from the corresponding component. Further, a HAMR HGA may be configured such that the submount is coupled directly to the suspension flexure using a thermally conductive material, for conduction of heat away from the laser module and to the flexure. Full Article
ad Optical device, magnetic head, manufacturing method, and near-field light device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An near-field light device (100) is provided with: a first electrode layer (123) having a protruding portion (123a); a second electrode layer (121); and a light emitting layer (122), the protruding portion protrudes along a predetermined direction (Y axis direction) to be capable of extracting energy which is caused by emission of light at the light emitting layer, the predetermined direction intersects with a laminated direction (X axis direction) of the near-field light device, an edge surface of at least one portion of the projection portion is located at more outward side in the optical device than an edge surface of the second electrode layer is. Full Article
ad Adjustable immobilizing joint brace By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT An adjustable immobilizing joint brace has a pair of opposed, spaced apart first supports for supporting and immobilizing a joint. Each first support has a pair of first joint holes proximate a first end. One of the holes of the pair of first joint holes is spaced further from the first end of the first support than the other hole. A pair of opposed, spaced apart second supports has two opposed sides. Each second support has a pair of second joint holes proximate a joint end. The pair of second joint holes can be aligned with and attached to the pair of first joint holes on either side of the first support to form different angles of attachment between the first supports and the second supports depending on the orientation of the first supports relative to the orientation of the second supports. Full Article
ad Load carrier frame and system By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT Upper assembly including slot, hole array. Lower assembly conforming to hips. Lower assembly anchoring holes shaped/spaced as array. Lower assembly fastener hole for each slot; fastener hole having same position relative to anchoring holes as slot to array; having horizontal dimension equal to horizontal dimension of corresponding slot. Adjuster plate including anchoring points spaced as array holes. Each anchoring point dimensioned less than corresponding hole so as to fit snugly therein, and projecting a distance equal to thickness of corresponding upper and lower assembly anchoring hole. Forming an adjuster plate fastener hole for each lower assembly fastener hole. Each adjuster plate fastener hole having same position relative to anchoring points as slot to array. Releasable fastener for each lower assembly fastener hole. As assembled, fastener secures adjuster plate to upper and lower assembly such that anchoring points of adjuster plate are positioned through upper assembly and lower assembly anchoring holes. Full Article
ad Orthotic head and neck support By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT A kit of parts for forming an orthotic head support. The kit includes at least one frame having a plurality of arms extending from a central region. Examples of such frames are W-frames, Y-frames and H-frames. The kit further includes at least one extension connectable to a frame. Such extension members include straight extensions, L-shaped extensions, and extension with two elements at an acute angle to one another. The kit has elements for attaching the extensions to the frames. The frames and extensions may have lines of reduced stiffness formed therein about which they are preferentially bendable to conform the support to the shape of a wearer's head and/or neck. The kit further includes padding members connected, or connectable, to the frames and/or extensions on the surfaces thereof which in use are to be adjacent the wearer. Full Article
ad Cervical collar with cable adjustment system By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A cervical collar having a vertically adjustable chin support, the collar including chin support adjustably connected to a collar body having a stop guide, an adjustment member for adjusting the length of a cable trained around a pulley located on the collar body adjacent to the cable guide and connected to a cable stop connecting between the collar body and the chin support and movably positionable along the stop guide on the collar body, wherein the length of the cable adjusts the position of the cable stop along the stop guide and adjusts the vertical position of the chin support relative to the collar body. Full Article
ad Bioadhesive for periodontal gingival and/or bone tissues By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT The invention is directed to an adhesive strip, particularly an adhesive strip or bandage for use in periodontal treatments. The biocompatible adhesive strip comprises a flexible barrier with a biocompatible adhesive for use in an oral environment, wherein the adhesive is in a non-tacky state when dry and becomes adherent upon contact with liquids. Full Article
ad Adjustable hinge By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT An adjustable hinge having a first support arm, a second support arm, and a deformable insert that is between the first support arm and the second support arm. Full Article
ad Rare earth-containing attrition resistant vanadium trap for catalytic cracking catalyst By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The present invention provides a metal passivator/trap comprising a rare earth oxide dispersed on a matrix containing a calcined hydrous kaolin. Full Article
ad Diesel oxidation catalyst comprising palladium, gold and ceria By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention relates to a diesel oxidation catalyst comprising a carrier substrate, and a first washcoat layer disposed on the substrate, the first washcoat layer comprising palladium supported on a support material comprising a metal oxide, gold supported on a support material comprising a metal oxide, and a ceria comprising compound, as well as a process for the preparation of such catalyst. Full Article
ad Adsorption carbon, and adsorbent By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Provided are an adsorptive carbon which can effectively adsorb vivotoxins such as advanced glycation end products (AGEs), and an adsorbent containing the adsorptive carbon as an active ingredient. The adsorptive carbon according to the present invention has a total pore volume of 0.10 to 1.0 mL/g, an average pore diameter of 1.0 to 2.0 nm, and an absorbance of an infrared absorption band at 1650-1800 cm−1 of no less than 0.005. Full Article
ad Polyurethanes made with copper catalysts By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a copper catalyst that contains at least one copper atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site. Full Article
ad Method for making biodegradable superabsorbent particles By www.freepatentsonline.com Published On :: Tue, 04 Feb 2014 08:00:00 EST A method for making particles containing carboxyalkyl cellulose, comprising blending a carboxyalkyl cellulose and a starch in water to provide an aqueous gel; treating the aqueous gel with a crosslinking agent to provide a crosslinked gel; drying the crosslinked gel to provide a solid; comminuting the solid to provide a plurality of particles. Full Article
ad Bio-based roofing adhesive compositions By www.freepatentsonline.com Published On :: Tue, 06 May 2014 08:00:00 EDT An adhesive composition for use in adhering insulation panels to roofing substrates and roofing membranes to the insulation panels include two components that are mixed prior to application on the roofing substrate. The first component may include a renewable polyol and catalyst. The renewable polyol is selected from any non-petroleum based polyol that is derived from a renewable source. The second component includes isocyanate, and may also include a polyol and a catalyst. The isocyanate and the polyol may each be any non-petroleum based isocyanate or polyol that is derived from a renewable source. Full Article
ad Hydrogel tissue adhesive for medical use By www.freepatentsonline.com Published On :: Tue, 15 Jul 2014 08:00:00 EDT A hydrogel tissue adhesive formed by reacting an aldehyde-functionalized polysaccharide containing pendant aldehyde groups with a water-dispersible, multi-arm amine is described. The hydrogel may be useful as a tissue adhesive or sealant for medical applications that require a more rapid degradation time, such as the prevention of undesired tissue-to tissue adhesions resulting from trauma or surgery. Full Article
ad Hydrogel tissue adhesive having decreased gelation time and decreased degradation time By www.freepatentsonline.com Published On :: Tue, 14 Oct 2014 08:00:00 EDT A hydrogel tissue adhesive having decreased gelation time and decreased degradation time is described. The hydrogel tissue adhesive is formed by reacting an oxidized polysaccharide containing aldehyde groups with a water-dispersible, multi-arm amine in the presence of a thiol additive. The thiol additive accelerates the process to form the hydrogel and accelerates the degradation of the hydrogel formed. The hydrogel may be useful as a tissue adhesive or sealant for medical applications, such as a hemostat sealant or to prevent undesired tissue-to-tissue adhesions resulting from trauma or surgery. Full Article
ad Two-component lignosulfonate adhesives and methods for their preparation By www.freepatentsonline.com Published On :: Tue, 14 Oct 2014 08:00:00 EDT Disclosed are two-component lignosulfonate adhesives, methods of synthesizing two-component lignosulfonate adhesives, kits comprising two-component lignosulfonate adhesives and methods of using two-component lignosulfonate adhesives. Full Article
ad Protein-containing adhesives, and manufacture and use thereof By www.freepatentsonline.com Published On :: Tue, 23 Dec 2014 08:00:00 EST The invention provides protein adhesives and methods of making and using such adhesives. The protein adhesives contain ground plant meal or an isolated polypeptide composition obtained from plant biomass. Full Article
ad Adhesives and methods for their manufacture and use By www.freepatentsonline.com Published On :: Tue, 20 Jan 2015 08:00:00 EST Adhesive copolymers and methods for preparing them are disclosed. An adhesive copolymer may be prepared from a reaction mixture containing monosaccharide monomers and dicarboxylic monomers. The monosaccharide monomers may include any of a number of C5 and/or C6 monosaccharides. Full Article
ad Stent with radiopaque markers By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Various embodiments of stents with radiopaque markers arranged in patterns are described herein. Full Article
ad Modular, adjustable, prosthetic, hip/shoulder spacer By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A modular, adjustable, prosthetic hip/shoulder spacer adapted to being implanted in the hip or shoulder joint; the spacer comprises a frame that supports a rotatable cylinder from which a neck extends with the ball element of the joint attached to its end, and rotating the cylinder reposition the ball in the socket; the stem is connected to the base of the frame and is implanted in the long bone (femur or humerus); the stem may be modified to include a system for delivering medication to the implantation site following surgery. The stem leg and stem base may be modified to form a modular unit to adjust the relation between a center line of the stem leg and a center line of the frame and position of the neck and ball. Full Article
ad Adjustable lateral articulating condyle By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An elbow prosthesis is provided and may include a first stem component attached to one of a humerus and an ulna, a second stem component attached to the other of the humerus and the ulna, and a joint disposed between and coupling the first stem component and the second stem component to permit relative movement between the first stem component and the second stem component about a first axis. The elbow prosthesis may additionally include a condyle extending from the joint and including an axis of rotation that is eccentric from the first axis. Full Article
ad Micro-structure particles for load bearing bone growth By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present disclosure relates to methods of facilitating bone growth. The method may include positioning a device around at least a portion of a bone exhibiting a defect, the device capable of retaining bone segments and micro-structured particles. The method may also include applying micro-structure particles within the device to the defect, wherein each of the micro-structure particles include at least one pore therein. In addition, the method may include aligning at least a portion of the micro-structure particles and applying a polymer to the particles and solidifying the polymer. Full Article
ad Resonant power supply for use with high inductive loads and method of providing same By www.freepatentsonline.com Published On :: Tue, 22 Jul 2014 08:00:00 EDT A resonant power supply (900) for use with high inductive loads includes an input rectifier (903) and a switching inverter formed using a plurality of parallel connected half bridge networks for switching the voltage provided from the input rectifier (903). A transformer (927) is used whose primary is connected to the switching inverter and whose secondary is connected to load such as a crucible (931). A capacitor (929) is used in series with the primary of the transformer (927) for resonating the inductance in the secondary circuit at the frequency of the switching inverter to provide maximum power transfer to the crucible (931). Full Article
ad Device for adjusting the locking point of an electrode By www.freepatentsonline.com Published On :: Tue, 29 Jul 2014 08:00:00 EDT A device (10) for adjusting the locking point of the electrode of a smelting furnace includes a vice (120) for supporting said electrode and supplying it with power. A structure (13) is coupled with the vice (120), supports the electrode and moves the electrode vertically. Full Article
ad Ladle metallurgy furnace having improved roof By www.freepatentsonline.com Published On :: Tue, 14 Oct 2014 08:00:00 EDT The present invention relates generally to a ladle metallurgy furnace having an improved roof structure. The improved roof may comprise an internal surface structure having a substantially smooth exterior surface, an external surface structure spaced apart from the internal surface structure, a plurality of channels that are defined intermediate the internal and external surface structures, a supply port in fluid communication with at least one channel through the second surface structure and in further fluid communication with a supply line, and a return port in fluid communication with at least one channel through the external surface structure and in further fluid communication with a return line. Full Article
ad Shaft assembly including a contained shaft spring load By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT An input shaft assembly is movable along an axis to absorb external impact loads. A biasing member exerts an axial load in a direction counter to potential impact loads. A stop is provided to control the application of biasing loads to control application of such axial load. Full Article
ad Adaptive control of electrical devices to achieve desired power use characteristics By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A system and method is provided for energizing and managing digitally-controlled devices at different levels of granularity, to achieve desired power use characteristics. At the lowest level, a digitally-controlled device is energized using a variable load-sensing adaptive control (VLSAC). Operation of the device is controlled using digital signals input to the device, so that limits on parameters, such as power consumption are met. A plurality of VLSACs can be coupled to a power distribution unit (PDU), which is controlled to achieve desired levels for selected parameters, set for the PDU. Multiple PDUs can be coupled to a power conversion and regulation unit (PCRU), which can be controlled by a master control to achieve a desired power profile for an entire facility, enabling the facility to meet requirements of a utility supplying the power and thus, reducing operational costs. The VLSACs and PCRU include high efficiency power sources having low distortion. Full Article
ad Method and system for automatic-adjustable stacker By www.freepatentsonline.com Published On :: Tue, 02 Jun 2015 08:00:00 EDT An automatic-adjustable stacker for controlling the movement of a media, such as cardboard, through a media handling system. The stacker includes a media receiver positioned proximate a feed of the media that receives a leading edge of the media and a controller that causes the media receiver to move from a first position for receiving the media, to a second position for depositing of the media at a desired location. The media receiver is configured to prevent the media from coming into contact with other media already located at the desired location until the media has arrived at the desired location, while creating a concave-like shape to the media while conveying it. Full Article
ad Container and method for transporting a syringe containing radioactive material By www.freepatentsonline.com Published On :: Tue, 30 Jul 2002 08:00:00 EDT A method and apparatus for transporting syringes containing radioactive material. The apparatus includes a radiopharmaceutical pig having an inner chamber in which a sharps container can be secured. The sharps container has a housing and an attachable cap. The method includes assembling the radiopharmaceutical pig so that the chamber of the radiopharmaceutical pig contains the syringe in the sharps container housing. The radiopharmaceutical pig is disassembled, where upon the syringe is removed, discharged, and then replaced in the sharps container housing. The cap of the sharps container is affixed to the housing of the sharps container, thus enclosing the contaminated syringe therein. The radiopharmaceutical pig is assembled so that its chamber contains the sharps container and the syringe. The radiopharmaceutical pig is transported to a disposal area, where it is disassembled and the sharps container containing the syringe is placed in a particular disposal container. Full Article
ad Radioactive decontamination and translocation method By www.freepatentsonline.com Published On :: Tue, 24 Dec 2002 08:00:00 EST A method for removing radioactive contaminants from a given surface. An acidic solution having a pH of less than 3.0, and preferably less than 1.5, of a complex substituted keto-amine, and a mixture of a saturated and unsaturated lower alcohol (e.g. isopropyl alcohol and propargyl alcohol), and concentrated acid is applied to a contaminated surface. The solution is left on said surface for a time sufficient to remove the radioactive contaminants into the acidic solution and then removed. The acidic solution containing the radioactive contaminants is preferably neuralized by an alkaline material to a pH of between 5.5 and 9.0. Removal of thorium contamination from railcars is one useful application of the invention. The method of the present invention has the effect of removing substantially all of the radioactive contaminants from a previously contaminated surface. Full Article
ad Radiopharmaceutical pig and transportation apparatus By www.freepatentsonline.com Published On :: Tue, 01 Jul 2003 08:00:00 EDT An apparatus and method for transporting radiopharmaceutical substances. The apparatus comprises a radiation shielding pig having an elongated sidewall that extends between two ends and that defines an elongated, interior chamber. The sidewall is thinner than each of the ends. A radiation shield defines at least one cavity. The shield has two open ends and a central area between the open ends that is thicker than each of the two open ends. Also, a method of assembling and disassembling the apparatus includes, placing a syringe filled with a radiopharmaceutical substance into the pig; placing the pig containing the filled syringe in the radiation shield; placing the pig and the shield into an ammunition can for transporting the radioactive substance contained in the syringe. Full Article
ad Radioactive decontamination and translocation method By www.freepatentsonline.com Published On :: Tue, 12 Aug 2003 08:00:00 EDT A method for removing radioactive contaminants from a given surface. An aqueous solution having a wetting agent and a complex substituted keto-amine is provided. The solution is left on the surface for a time sufficient to remove the radioactive contaminants into the aqueous solution which is then removed. Depending on the type and condition of the surface, a concentrated acid may be added to the aqueous solution to aid in the contaminant removal process. In such a case, a pH of less than 3.0, and preferably less than 1.5 is maintained. If a concentrated acid is used, the acidic solution containing radioactive contaminants is preferably neutralized by an alkaline material to a pH of between 5.5 and 9.0. Removal of thorium contamination from railcars is one useful application of the invention. The method of the present invention has the effect of removing substantially all of the radioactive contaminants from a previously contaminated surface. Full Article
ad Radioactive decontamination and translocation method By www.freepatentsonline.com Published On :: Tue, 25 Nov 2003 08:00:00 EST A method for removing a wide variety of radioactive contaminants from a contaminated surface sufficient for the surface to be classified as a low-level waste or as free release. Contaminated surfaces may be classified as Class C, Class B, Class A, or high-level radioactive wastes prior to treatment. An aqueous solution having a wetting agent and a complex substituted keto-amine is provided. The aqueous solution is left on the surface for a time sufficient to remove the radioactive contaminants into the aqueous solution which is then removed. Depending on the type and condition of the surface, an acid may be added to the aqueous solution to aid in the contaminant removal process. However, typical metals surfaces may often be treated effectively without the use of concentrated acids or with dilute concentrations of such acids. The method of the present invention has the effect of removing substantially all of the radioactive contaminants from a variety of previously contaminated surfaces. Full Article
ad Container transporting a syringe containing radioactive material By www.freepatentsonline.com Published On :: Tue, 20 Apr 2004 08:00:00 EDT A method and apparatus for transporting syringes containing radioactive material. The apparatus includes a radiopharmaceutical pig having an inner chamber in which a sharps container can be secured. The sharps container has a housing and an attachable cap. The method includes assembling the radiopharmaceutical pig so that the chamber of the radiopharmaceutical pig contains the syringe in the sharps container housing. The radiopharmaceutical pig is disassembled, where upon the syringe is removed, discharged, and then replaced in the sharps container housing. The cap of the sharps container is affixed to the housing of the sharps container, thus enclosing the contaminated syringe therein. The radiopharmaceutical pig is assembled so that its chamber contains the sharps container and the syringe. The radiopharmaceutical pig is transported to a disposal area, where it is disassembled and the sharps container containing the syringe is placed in a particular disposal container. Full Article
ad Radioactive substance decontamination method and apparatus By www.freepatentsonline.com Published On :: Tue, 21 Jun 2005 08:00:00 EDT A radioactive substance decontamination method and apparatus which decontaminates a metal member contaminated by radioactive substance in a short period of time. This apparatus has (1) multiple reducing decontamination tanks having different radiation control values; (2) a carrier for immersing the metal member into the multiple reducing decontamination tanks and a washing tank; (3) a tube for transferring into the second reducing decontamination tank the reducing decontamination agent in the first reducing decontamination tank; (4) a reducing agent decomposer for decomposing a component contained in the reducing decontamination agent of the reducing decontamination tank where the radiation control value is the highest out of the reducing decontamination tanks connected by the tube; and (5) a washing tank for washing the reducing decontamination agent deposited on the decontaminated metal member. Full Article
ad Method of separating uranium from irradiated nuclear fuel By www.freepatentsonline.com Published On :: Tue, 01 Nov 2005 08:00:00 EST The invention provides a method of separating uranium from at least fission products in irradiated nuclear fuel, said method comprising reacting said irradiated nuclear fuel with a solution of ammonium fluoride in hydrogen fluoride fluorinating said reacted irradiated nuclear fuel to form a volatile uranium fluoride compound and separating said volatile uranium fluoride compound from involatile fission products. The invention thus provides a reprocessing scheme for irradiated nuclear fuel. The method is also capable of reacting, and breaking down Zircaloy cladding and stainless steel assembly components. Thus, whole fuel elements may be dissolved as one thereby simplifying procedures over conventional Purex processes. Full Article
ad Container and method for transporting a syringe containing radioactive material By www.freepatentsonline.com Published On :: Tue, 09 May 2006 08:00:00 EDT A method and apparatus for transporting syringes containing radioactive material. The apparatus includes a radiopharmaceutical pig having an inner chamber in which a sharps container can be secured. The sharps container has a housing and an attachable cap. The method includes assembling the radiopharmaceutical pig so that the chamber of the radiopharmaceutical pig contains the syringe in the sharps container housing. The radiopharmaceutical pig is disassembled, where upon the syringe is removed, discharged, and then replaced in the sharps container housing. The cap of the sharps container is affixed to the housing of the sharps container, thus enclosing the contaminated syringe therein. The radiopharmaceutical pig is assembled so that its chamber contains the sharps container and the syringe. The radiopharmaceutical pig is transported to a disposal area, where it is disassembled and the sharps container containing the syringe is placed in a particular disposal container. Full Article