A remote switch combination shower head includes a first shower head, a second shower head and a switch mechanism, wherein further comprising a fixing seat assembled to a support arm, the fixing seat is disposed with an inlet waterway connected to the support arm, a first diversion waterway and a second diversion waterway; the first shower head is assembled to the fixing seat and is capable of connecting to the first diversion waterway; the second shower head is a hand shower head connected to the second diversion waterway by a flexible pipe; the switch mechanism comprises a switch component and an operation component, the switch component is disposed to the fixing seat and is coupled to the inlet waterway, the first diversion waterway and the second diversion waterway, so that the waterways are switched by the movement of the switch component.

A controlled droplet application (CDA) nozzle has a CDA nozzle cone having a first axis of rotation in a first position and, after adjustment, a second axis of rotation in a second position orthogonal to the first. A rotationally adjustable directional shroud surrounds at least a portion of the cone, the directional shroud blocking at least a portion of a lip of the cone regardless of whether the cone is positioned in the first or second axis of rotation.

A shower head includes a spray handle; a conduit in the spray handle and including an inlet having a first port, a first outlet having a second port, and a second outlet having a third port; a nozzle assembly including central nozzles and peripheral nozzles; a central channel in the spray handle and communicating with both the first outlet and the central nozzles; a peripheral channel around the central channel and communicating with both the second outlet and the peripheral nozzles; a sliding valve between the inlet and the first and second outlets, the sliding valve including three spaced disc members and two annular cavities each between two adjacent disc members; and two opposite push buttons secured to two ends of the sliding valve respectively. Water flowing out of the central or peripheral nozzles can be controlled by pressing one or the other press button.

The present invention relates to a pressure sensitive adhesive sheet containing, laminated in this order, a supporting substrate, a pressure sensitive adhesive layer (X), a continuous void-containing layer including a composition containing silica particles, and a pressure sensitive adhesive layer (Y), the continuous void-containing layer having a mass concentration of the silica particles of more than 60% and 100% or less.

A pressure sensitive adhesive sheet containing, on a substrate or a release material, a resin layer, at least a surface (α) of the resin layer being opposite to the side of the substrate or being opposite to the side which the release material is provided, having pressure sensitive adhesiveness, the surface (α) having one or more concave portions, the concave portions having irregular shapes. The pressure sensitive adhesive sheet has an excellent air escape property capable of easily removing air accumulation that may be formed on attaching to an adherend, and is excellent in pressure sensitive adhesion characteristics.

Provided is a high-strength cold-rolled steel sheet having excellent ductility and stretch-flangeability as well as weldability in a range in which a tensile strength is 980 MPa or higher and a 0.2% yield strength is less than 700 MPa (preferably 500 MPa or higher). In the high-strength cold-rolled steel sheet of the present invention, the chemical composition is adjusted as appropriate, and the area ratio of below-mentioned metal structures at a position of ¼ sheet thickness in the steel sheet satisfies following requirements: tempered martensite: 10 area % to less than 30 area %, bainite: more than 70 area %, total of tempered martensite and bainite: 90 area % or more, ferrite: 0 area % to 5 area %, and retained austenite: 0 area % to 4 area %. The high-strength cold-rolled steel sheet has excellent ductility, stretch-flangeability, and weldability, and has a tensile strength of 980 MPa or higher and a 0.2% yield strength of less than 700 MPa.

A sheet material includes a fibrous substrate made of microfibers and a hydrophilic-group-containing resin applied to the fibrous substrate. The hydrophilic-group-containing resin has a microphase-separated structure that satisfies Condition I: In a phase image obtained by observing an area of 1 μm2 in a cross-section of the hydrophilic-group-containing resin applied to the fibrous substrate by phase imaging using an atomic force microscope (AFM), a standard deviation of a mode of brightness distribution of areas of 0.2 μm2 in the area of 1 μm2 is from 0 to 10. Provided are a sheet material that is produced through an eco-conscious production process and yet has such uniformity that is comparable to those of man-made leathers produced using organic-solvent-based polyurethanes, an elegant surface appearance, and a good touch, and a method for producing such a sheet material.

An object of the present invention is to provide a method for producing an ultrafine fiber-containing sheet with suppressed yellowing. Another object of the present invention is to provide an efficient method for eliminating an introduced substituent, and a composite sheet comprising an organic layer and/or an inorganic layer laminated on the obtained sheet. The present invention provides a method for producing an ultrafine fiber-containing sheet, comprising (a) introducing a substituent having electrostatic and/or steric functionality to a fiber raw material to obtain substituent-introduced fiber; (b) machine-processing the substituent-introduced fiber obtained in the step (a) to obtain substituent-introduced ultrafine fiber; (c) preparing a sheet from the substituent-introduced ultrafine fiber obtained in the step (b); and (d) eliminating at least a portion of introduced substituents from the sheet obtained in the step (c). In a preferred aspect, the substituent having electrostatic and/or steric functionality is a phosphoric acid-derived group, and the method may further comprise, after the step (a) and before the step (c), the step of (e) changing the degree of neutralization of the substituent-introduced fiber or the substituent-introduced ultrafine fiber.

The present invention relates to an electrode having a multilayer nanomesh structure using single-crystalline copper and a method for manufacturing same, the electrode comprising: a substrate; a single-crystalline copper electrode layer formed on the substrate and having a hive-shaped pattern with a nano-sized line width; and a metal oxide layer formed on the single-crystalline copper electrode layer, this providing an electrode having excellent optical transmittance, low electrical sheet resistance, and excellent mechanical stability. The present invention is technically characterized by an electrode having a multilayer nanomesh structure using single-crystalline copper, the electrode comprising: a substrate; a single-crystalline copper electrode layer formed on the substrate and having a hive-shaped pattern with a nano-sized line width; and a metal oxide layer formed on the single-crystalline copper electrode layer.

Card shuffler apparatuses include a card repositioner used to randomly reposition a plurality of cards on-edge over an aperture extending through a card support surface to allow cards to sequentially pass through the aperture in a random order. The apparatuses may be capable of continuously and sequentially forming playing card hands for use in a game. Shuffler apparatuses may be used to obtain a measurement relating to a thickness of the deck of cards. Methods involve the use of card shuffler apparatuses to form one or more playing card hands in a playing card game. Additional methods involve counting playing cards present within a stack of playing cards using a shuffler apparatus. In further methods, a number of shuffler apparatuses and a lesser number of shuffler activation devices are provided in a gaming establishment so as to preclude simultaneous use of all the shuffler apparatuses in the establishment.

Card-reading shoes may include an input area configured to support cards therein. A card-reading system may be located within the card-reading shoe, the card-reading system including at least one sensor configured to detect at least a rank and suit of each card processed by the card-reading shoe. A toggle weight may be pivotally mounted proximate an output end of the shoe. The toggle weight may be configured to selectively rotate to enable cards to be removed from the card-reading shoe via the output end and to selectively remain stationary to prevent removed cards from being reinserted into the card-reading shoe via the output end. The card-reading shoes may optionally include a removable cartridge including a delivery end configured to enable manual removal of cards from the removable cartridge when the removable cartridge is removed from the input area.

Using traceable target plates triggering a LED flashing controller to make different color of LED lights flashing different patterns corresponding to shooting results. The invention can be used in airsoft gun target, archery target, or dart target.

A shooting range including a shooting station positioned at one end of a firing lane. A projectile trap is disposed at an opposite end of the firing lane for collecting projectiles fired from the shooting station. The projectile trap comprises a deceleration chamber defined by a first scroll wall and a second scroll wall for dissipating kinetic energy of the projectiles and a funneling portion for directing projectiles into the deceleration chamber. The first scroll wall is curved and has a concave surface. The first scroll wall is positioned so that the concave surface of the first scroll wall generally faces in a direction towards the shooting station. The first scroll wall comprises a steel body substrate and has an enhanced impact resistant portion. The enhanced impact resistant portion has an impact resistant layer comprising a plurality of ceramic particles and a binding material bound to a forward facing surface of the steel body substrate.

The present invention provides shuffled playing cards which eliminate the need for a game host to shuffle cards before games by taking a lot of time as well as eliminate the possibility of cheating. A shuffled playing cards (1) obtained by shuffling a predetermined number of decks of playing cards (12) using a shuffling machine is packaged as an individual pack. The shuffled playing cards (1) is individually packaged and sealed with an adhesive label (13). A bar code (13a) which represents a unique shuffled card ID has been printed on the adhesive label (13). The shuffled card ID is registered in a database by being associated with information which allows identification of a shuffling machine used to shuffle the playing card set.

The disclosure refers to a control device and method for an intelligent basketball shooting machine, the device includes a control module, a blue-tooth communication module, a display module, a control switch, a power-supplying module, and a first sensor and a second sensor both for counting; the first sensor is used for catching amount of goals in one basket of basketball shooting machine, and the second sensor used for catching amount of goals in another basket of basketball shooting machine; the first sensor, second sensor, blue-tooth communication module, display module, control switch and power-supplying module are respectively connected with control module; the disclosure makes the basketball shooting machine go on single game or online game, besides, the player can play the shooting game with friends by remote way just through an intelligent terminal, which increases interest and convenience.

A tip insert for a cue shaft having a cavity at the tip has a tip disc to support a tip for striking a ball and an inwardly extending section for bonding to the inside surface of the cavity. The inwardly extending section includes one or more centering flanges and a bonding surface, the centering flanges interfacing with the inner surface of the cavity and enabling a substantially consistence bond distance between the bonding surface and the inner surface of the cavity. The tip insert can be machine from a single piece of material comprising glass fiber-reinforced epoxy laminate sheets, where the individual sheets of the material are oriented perpendicular to the longitude axis of the tip insert to increase the durability and performance of the tip insert when transferring the force from the tip striking a ball.

A method of using a dealer shoe that is configured to provide access to and removal of playing cards from within the dealer shoe includes: a base, a front plate forming a lower gap with the plate through which individual playing cards can pass, a top, and opposed sides joining the base, top, two sides and the front plate to form a card-carrying cavity. The front plate further is associated with a light producing element configured to shine light (e.g., in patterns, in colors, and the like) over a back of a first playing card extending out of the lower gap; and the wavelength and intensity and qualities of the shone light being sufficient to reduce optical contrast of different colors and/or shades on the back of the first playing card or otherwise disrupt optical viewing of printed images on the backs of playing cards.

A method of using a dealer shoe that is configured to provide access to and removal of playing cards from within the dealer shoe includes: a base, a front plate forming a lower gap with the plate through which individual playing cards can pass, a top, and opposed sides joining the base, top, two sides and the front plate to form a card-carrying cavity. The front plate further is associated with a light producing element configured to shine light (e.g., in patterns, in colors, and the like) over a back of a first playing card extending out of the lower gap; and the wavelength and intensity and qualities of the shone light being sufficient to reduce optical contrast of different colors and/or shades on the back of the first playing card or otherwise disrupt optical viewing of printed images on the backs of playing cards.

An automated playing card, shuffling and dealing device in turn shuffles and in turn deals playing cards of two playing card sets, includes two card slot assemblies each disposed with a shuffled card box and a dealt card box. A control unit controls a dealing element to align with the playing card set in the shuffled card box of the card slot assembly at a card drawing position, sequentially draw the cards in the playing card set, and move the uncovered cards to the corresponding dealt card box. Meanwhile, the control unit controls a shuffling machine to align with the playing card set in the dealt card box of the card slot assembly at a card shuffling position. After the dealing process is complete, the control unit exchanges the positions of two card slot assemblies. Accordingly, shuffling and dealing in turn are completed in an uninterrupted and automated manner.

Disclosed is a housing for electronic/electrical that includes an inner panel and an outer panel, a strip of metal plate, and a strip of shape memory material. The inner panel and the outer panel are disposed parallel to each other at regular intervals to define an internal space. The strip of metal plate extends from an inner surface of the outer panel. The strip of shape memory material extends from an inner surface of the inner panel and is attached or detached to/from the metal plate on the outer panel while changing into an original straight shape or a bent shape according to a temperature variation. Here, when the temperature increase beyond a first transition temperature, the shape memory material straightens to form a heat transfer path. At a low temperature environment, the shape memory material bends and is separated from the metal plate to interrupt the heat transfer path.

A heat-insulating shroud for facilitating temperature control of a heated article includes a flexible cover, made from a heat-insulating material, for covering a surface of the heated article, at least one air inlet defined in a first section of the flexible cover, and at least one air outlet defined in a second section of the flexible cover. In a cooling mode of operation, the flexible cover defines an air channel over the surface of the heated article for channeling an air stream from the air inlet(s) over the surface of the heated article towards the air outlet(s). The channeling of the air stream facilitates cooling the heated article. In a heat-conservation mode of operation, the flexible cover of heat-insulating material insulates the heated article from heat loss. Each air outlet may have a closure that opens during the cooling mode of operation and closes during the heat-conservation mode of operation.

A formable structure comprises a first material having a first level of viscosity and a second material having a second level of viscosity, wherein the second material is formed to hold at least a portion of the first material in a particular position or a particular shape. The first material can be configured to function as a thermal interface between two or more hardware components. The second material can be configured to have a higher viscosity than the first material. In one illustrative example, the second material can include a light-activated resin that is configured to harden when exposed to one or more treatments. By the use of the first material and second material, the techniques disclosed herein are adaptable to gaps having a wide range of sizes, which is difficult to do with traditional thermal interface materials. The second material can also function as an EMI shield.

A level shifter circuit includes a level shifting unit configured to receive signals that may vary in a first range via a positive input terminal and a negative input terminal, respectively and to output signals that may vary in a second range to a positive output terminal and a negative output terminal, respectively, where the second range is larger than the first range, a first pre-charging unit configured to pre-charge the positive output terminal to a predetermined level when a clock is in a first level, and a second pre-charging unit configured to pre-charge the negative output terminal to the predetermined level when the clock is in the first level.

The invention relates to an encoder and a decoder and methods therein for supporting split gain shape vector encoding and decoding. The method performed by an encoder, where the encoding of each vector segment is subjected to a constraint related to a maximum number of bits, BMAX, allowed for encoding a vector segment. The method comprises, determining an initial number, Np—init, of segments for a target vector x; and further determining an average number of bits per segment, BAVG, based on a vector bit budget and Np—init. The method further comprises determining a final number of segments to be used, for the vector x, in the gain shape vector encoding, based on energies of the Np—init segments and a difference between BMAX and BAVG. The performing of the method enables an efficient allocation of the bits of the bit budget over the target vector.

For continuous-time multi-stage noise shaping analog-to-digital converters (CT MASH ADCs), quantization noise cancellation often requires accurate estimation of transfer functions, e.g., a noise transfer function of the front end modulator and a signal transfer function of the back end modulator. To provide quantization noise cancellation, digital quantization noise cancellation filters adaptively tracks transfer function variations due to integrator gain errors, flash-to-DAC timing errors, as well as the inter-stage gain and timing errors. Tracking the transfer functions is performed through the direct cross-correlation between the injected maximum length linear feedback shift registers (LFSR) sequence and modulator outputs and then corrects these non-ideal effects by accurately modeling the transfer functions with programmable finite impulse response (PFIR) filters.

An analog-to-digital converter (ADC) is a device that can include a reference shuffler and a loop filter. An ADC can achieve better performance with incremental adjustment of a pointer of the reference shuffler, changing coefficients of the loop filter, and storing calibration codes of the ADC in a non-volatile memory. By incrementally adjusting a pointer of the reference shuffler, a calibration can be performed more efficiently than with a random adjustment of the pointer. By temporarily changing the loop filter coefficients, a greater amount of activity can be introduced into the loop filter. This activity can allow the calibration to proceed more efficiently. By storing the calibration codes in a non-volatile memory, a search space for calibration codes can be reduced. Thus, a calibration can occur more quickly, and the calibration itself can be improved.

A flash analog-to-digital converter (ADC) includes comparators that convert an analog input signal to a digital output signal. Offsets of these comparators introduce noise and can hurt the performance of the ADC. Thus, these comparators are calibrated using calibration codes. Conventional calibration methods determine these calibration codes by removing the ADC from an input signal. Otherwise, it is difficult to distinguish the noise from the signal in the calibration measurement. In contrast, an embodiment can determine the calibration codes while the ADC converts the input signal to a digital signal. Such an embodiment can be achieved by a frequency-domain technique. In an embodiment employing a frequency-domain power meter, an input signal can be removed from the power measurement. This removal enables accurate measurement of in-band noise without having the measurement be corrupted by input signal power.

For continuous-time multi-stage noise shaping analog to digital converters (CT MASH ADCs), quantization noise cancellation often requires estimation of transfer functions, e.g., a noise transfer function of the front end modulator. To estimate the noise transfer function, a dither signal can be injected in the front end modulator. However, it is not trivial how the dither signal can be injected, since the dither signal can potentially leak to the back end modulator and cause overall noise degradation. To address some of these issues, the dither signal is injected post the flash analog to digital converter (ADC) of the front end modulator. Furthermore, dummy comparator structures can be used to synchronize the dither with the quantization noise of the targeted flash ADC.

A rotating knife is disclosed for disintegrating a crystal bed formed in a washing column for processing suspension of solid particles in a liquid. The rotating knife is provided with a spoke support. The spoke support comprises at least two spokes. The relative angle of the spokes is between approximately 20° and approximately 80°.

Titanium dioxide which includes particles having a large major-axis length in a large proportion and comprises columnar particles having a satisfactory particle size distribution. A titanium compound, an alkali metal compound, and an oxyphosphorus compound are heated/fired in the presence of titanium dioxide nucleus crystals having an aspect ratio of 2 or higher to grow the titanium dioxide nucleus crystals. Subsequently, a titanium compound, an alkali metal compound, and an oxyphosphorus compound are further added and heated/fired in the presence of the grown titanium dioxide nucleus crystals. Thus, titanium dioxide is produced which comprises columnar particles having a weight-average major-axis length of 7.0-15.0 μm and in which particles having a major-axis length of 10 μm or longer account for 15 wt. % or more of all the particles.

The present invention provides a kiln for the combustion of agricultural waste. The kiln includes a central cylindrical combustion chamber. The central cylindrical combustion chamber includes a system for the control of combustion air to the combustion chamber. The kiln includes a second concentric cylinder surrounding the central cylindrical combustion chamber. The second concentric cylinder includes a system for the flow of cooling water through the first annulus between the central cylindrical combustion chamber and the second concentric cylinder. The kiln includes a system for the feeding of the agricultural waste into the central combustion chamber. The kiln includes a temperature sensing device to measure and display the temperature within the central combustion chamber during the combustion of the agricultural waste. The kiln includes a system for the recovery of ash from the kiln. In operation, the temperature of combustion is controlled to between 550° C. and 650° C. by a combination of increasing the supply of combustion air when the temperature in the central combustion chamber falls to near 550° C. and the introduction of cooling flowing water when the temperature in the central combustion chamber approaches 600° C.

Lockdown may be all that's keeping city from getting a taste of public anger. The Saturday afternoon shooting by San Leandro Police of Steven Taylor, a 33-year-old African-American man with a history of mental-health issues, is quickly attracting strong criticism from the community, and police accountability activists from across the country.  The blowback from the shooting, which was captured on a cell phone video at the Walmart on Hesperian Boulevard, threatens to hit a city government and police department ill-equipped to handle the barrage of criticism and protest about to come its way. San Leandro Police arrived at the Walmart store in response to reports of a man swinging a baseball bat, the department said.…

Tens of Thousands of California Inmates at Risk of COVID-19 Infection Jose Amendariz was on one of his frequent trips to the nurse’s station in Orange County’s largest jail when deputies hauled in a man in a mask. Of all the inmates inside the jail, the 29-year-old Armendariz needs the most care: insulin shots for Type I diabetes, pills for hypertension, asthma inhaler puffs for his ravaged respiratory system.…

The invention relates to an electric machine (10) with commutating brushes (12) and an electric interference-suppression component (14). The brushes (12) are arranged in an annular brush support (18), and the brush support (18) sits on an axial end (22) of a housing part (24) of the electric machine (10), which is preferably a pole housing (240). The interference-suppression component (14) is arranged radially outside of the housing (24), and the brush support (18) has a protrusion (30) which extends in the radial direction (2). The protrusion (30) extends radially towards the outside so as to extend outside of the housing (24), the interference-suppression component (14) being arranged on the protrusion (30).

Cycling shorts for protecting a rider from harmful effects occasioned by the design of the substantially unpadded seat of a racing-type cycle. Fabric shorts of conventional or elongated design include a interior protective pad. The pad includes adjoined seat and crotch sections and is symmetrical with respect to an axis of symmetry. It includes an interior chamber for receiving pressurized air. A pump for delivering selectively pressurized air communicates with the interior chamber by means of a conduit. The chamber includes internally honeycombed sections for minimizing air flow so that the cushioning effect of the pad is preserved despite the force exerted by the weight of a wearer on the hard and relatively-inflexible seat.

A music composition, editing, and playback system and method provides a user interface design based on geometric interpretation of music theory replacing traditional modern music notation with geometric shapes including chords represented by polygons that are colored with colors or hues.

A corner flashing system is provided for sealing the corners of recessed window frames against moisture penetration. In a preferred embodiment, the system comprises first and second double-flap members, a half-cube member, and caulking. The first and second double-flap members, and the half-cube member are preferably made of asphalt or petroleum based material. In another preferred embodiment, the system comprises one double-flap member, a modified half-cube member, and caulking. In another preferred embodiment, the system comprises a single member that combines a double-flap member and a half-cube member, and caulking. In another preferred embodiment, the system comprises a combination member, a double-flap member, and caulking.

A seamless sheet installation system preferably includes a seamless sheet and a plurality of sheet retention devices. The seamless sheet is retained on a tube. A pair of rotating retention devices may be inserted into ends of the roll. Each rolling retention device includes a tube plug and a rotating handle. An end of the seamless sheet is secured to the top eave flange. The seamless sheet is held against a bottom of the eave purlin web with one of the plurality of sheet retention devices. The sheet retention device may have any suitable design. The seamless sheet is rolled out to successive purlins, wrapped over the top flange and anchored to a bottom of the vertical web with one of the plurality of sheet retention devices. The seamless sheet wrapping process is terminated at an opposing eave purlin or a ridge purlin. Insulation is then inserted between adjacent purlins.

A mobile aboveground safety shelter to provide protection from dangerous events such as storms, tornadoes and similar occurrences is provided. The shelter includes a pallet and a room connected to the pallet. The pallet has a generally planar base and a wall extending upward from the base. The wall and base form a cavity suitable for containing a weighting material.

A composite shield comprises a panel including an outer thin metallic strike surface layer, a highly strain rate hardening polymer layer and an inner structural armor plate layer. The structural armor plate layer has a multiplicity of traversing ports. The traversing ports have sufficient lateral area to allow deformation of the thin metallic strike surface layer and highly strain rate hardening polymer layer through the structural armor plate layer on the occurrence of explosive blast.

The invention concerns a half shell element (10) for the production of a hollow body with an identical further half shell element (10), with at least one guide (20 . . . 20'″) for the further element (10), which is constructed in the region of a first half periphery (11) of its encircling edge (12), so that the further element (10) can be pushed onto the half shell element (10) from the second half periphery (11') of the edge (12) lying opposite this first half periphery (11) and guided on the edge (12) and held in a final position. The hollow bodies which are thus produced can be both inserted into steel cages and also connected with each other via bars and built into concrete layers.

A push-in earplug including an elongate core and outer layer is disclosed. The outer layer includes a sound attenuating portion having a first average density and a stem portion having a second average density, and the second average density is greater than the first average density.

Discussed herein is an optical sheet and a display device having the same. In the display device, a fixing portion for fixing optical sheets is provided in the active area of a liquid-crystal panel, and the fixing portion is fixed to a buffer region for evacuation of the panel corner provided in the guide panel, thereby reducing the number of processing steps, and addressing the limitation that components are visible at some viewing angles.

According to one embodiment, a display device includes a liquid crystal display panel, a cover panel on a display surface of the liquid crystal display panel, a backlight unit opposed to the liquid crystal display panel, a case covering the backlight unit and the liquid crystal display panel, and including at least a part fixed to the cover panel, and an adhesive provided on the cover panel along the liquid crystal display panel. The adhesive includes a surface opposite to the cover panel, a first area on the surface, and a second area on the surface, located on an inner side closer to the liquid crystal display panel than the first area. The part of the case is adhered to the second area.

For coating substrates (S) having along their surfaces to be coated high aspect ratio vias, a sputtering system has a sputtering source arrangement, which includes a first DC pulse operated magnetron sub-source (1203) and a second frame-shaped magnetron sub-source (1213) which latter is arranged, in the system, between the substrate (S) and the first magnetron sub-source (1203). The second magnetron sub-source (1213) may be operated in DC, pulsed DC, thereby also HIPIMS mode. The first magnetron sub-source (1203) is advantageously also operated in HIPIMS mode. The substrate (S) is biased by an Rf power source (1253).

An electrochemical polishing apparatus is provided for polishing a workpiece having at least one sharp object. According to the present invention, the electrolyte is driven to flow to the sharp object and the electrochemical processing is performed for polishing the sharp object.

Described herein are syringe devices, systems and methods. In general, the syringe may include a first chamber and a cartridge movable within the first chamber. The cartridge may include a cartridge chamber and a valve in fluid communication with the cartridge chamber and the first chamber and having an open configuration and a closed configuration. The valve may allow movement of a liquid out of the cartridge chamber while in a open configuration. The cartridge may also include a second end, movable within the cartridge chamber, and a locking mechanism having a locked configuration and an unlocked configuration, the locking mechanism preventing movement of the second end within the cartridge chamber while in the locked configuration.

An injection device, method, and system for drug delivery includes a primary container for storing a drug, the container having a stopper movably disposed in the container for expelling the drug, an injection drive mechanism comprising a plunger for acting on the stopper and an energy source for exerting a force on the plunger to cause the plunger to act on the stopper to expel the drug, the force causing the plunger to accelerate to a velocity prior to acting on the stopper, and a damping mechanism for reducing the velocity of the plunger prior to acting on the stopper. The damping mechanism can include a dashpot or an energy absorbing material associated with the plunger. Alternatively or additionally, the damping mechanisms can include absorbing material disposed between support members of an outer casing of the injection device and the primary container.

A needle tip for an injection device includes a body having a front portion, a back portion configured to be removably connected to the pre-loaded injection device, and a wall separating the front and back portions. A hollow needle has a first piercing portion projecting back from the separating wall and a second piercing portion projecting forward from the separating wall. A safety shield that is axially movable relative to the body at least between an initial position, a retracted position, and a post use locking position. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.