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Fibrous structures and methods for making same

Fibrous structures that exhibit a Free Fiber End Count greater than the Free Fiber End Count of known fibrous structures in the range of free fiber end lengths of from about 0.10 mm to about 0.75 mm as determined by the Free Fiber End Test Method, and sanitary tissue products comprising same and methods for making same are provided.




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Process for the preparation of surface-treated calcium carbonate material and use of same in the control of organic material in an aqueous medium

The present invention relates to a process for the production of a surface-treated calcium carbonate, the use of this surface-treated calcium carbonate in a process for the control of organic material in an aqueous medium, as well as to a composite of surface-treated calcium carbonate and organic material, such as a composite of surface-treated calcium carbonate and to the use of such a composite.




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Process for the preparation of surface-treated calcium carbonate material and use of same in the control of organic material in an aqueous medium

The present invention relates to a process for the production of a surface-treated calcium carbonate, the use of this surface-treated calcium carbonate in a process for the control of organic material in an aqueous medium, as well as to a composite of surface-treated calcium carbonate and organic material, such as a composite of surface-treated calcium carbonate and to the use of such a composite.




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Paper coating or binding formulations and methods of making and using same

Paper coating or binding formulations are provided that comprise aqueous copolymer emulsions including copolymers derived from one or more copolymerizable surfactants of formula I and one or more monomers. The paper coating or binding formulations can include one or more mineral fillers, coating pigments, or mixtures thereof, wherein the total weight concentration of the one or more mineral fillers, coating pigments, or mixtures thereof is 65% or higher, based on the total weight of the composition. Paper products coated with the paper coating or binding formulations, methods of making the paper coating or binding formulations, and methods of making the coated paper products are also disclosed.




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Tyre for two-wheeled vehicle and process for manufacturing the same

A belt structure for a two-wheeled vehicle made by means of strip-like segments or elements, each including parallel cords embedded in an elastomeric layer, sequentially laid along the circumferential extension of a toroidal support so as to form a reinforcing layer having a continuous circumferential extension around a geometric rotation axis of the toroidal support, wherein each strip-like element is laid in a laying trajectory defining, at each point, a laying angle; at each point of the laying trajectory a laying gap is formed between adjacent strip-like elements; the laying trajectory is formed starting from preselected laying angles on the shoulder and on the crown of the tire; the laying gap between adjacent strip-like elements varies along at least one length of said laying trajectory between crown and shoulder so as to cause variation of the laying angle and obtain the preselected angles on the shoulder and on the crown.




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Adhesive composition, adhesion method using the same, laminate and tire

The present invention provides an adhesive composition that may improve both adhesiveness to a film layer and adhesiveness to a rubber layer, and an adhesion method using the same, as well as a laminate and a tire. The adhesive composition according to the present invention includes a rubber component, at least 80 mass % of which rubber component is an epoxidized natural rubber.




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Rubber composition and tire using the same

This invention relates to a rubber composition including a polyisoprene rubber having a very high cis-1,4-bond content and having an excellent balance between dynamic properties and processability, and more particularly to a rubber composition comprising as a rubber component (A) a synthetic polyisoprene rubber having a cis-1,4-bond content of not less than 99.0%, a 3,4-bond content of not more than 0.5% and a Mooney viscosity ML1+4 (100° C.) of 20-110 and (B) a natural rubber.




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Rubber-steel hybrid cord and pneumatic radial tire (using the same)

A rubber-steel hybrid cord of the present invention is characteristically formed by twisting a plurality of sheath filaments or sheath strands around a core in which a periphery of and space surrounded by one or a plurality of core filaments or a core strand are coated or filled with a filler rubber (A) containing an adhesion promoter, thereby forming a multilayer-twist steel cord or a multi-twist steel cord, and coating an outer surface of the multilayer-twist steel cord or the multi-twist steel cord with a coating rubber (C). Further, an amount of an adhesion promoter contained in the coating rubber (C) is equal to or more than an amount of the adhesion promoter contained in the filler rubber (A).




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METHOD OF OPERATING A DISPLAY UNIT AND A TERMINAL SUPPORTING THE SAME

A method of operating a display unit enhances functionality of one hand control and a terminal supports the same. The method of operating the input area, output on the display unit, includes: determining whether one-hand operation mode is set; and displaying a first input module in which a key map area is displayed to be biased to a specific direction based on a center of the display unit when the one-hand operation mode is set.




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RDX ENHANCEMENT OF SYSTEM AND METHOD FOR IMPLEMENTING REUSABLE DATA MARKUP LANGUAGE (RDL)

Methods and systems in accordance with the present invention allow users to efficiently manipulate, analyze, and transmit eXtensible Business Reporting Language (“XBRL”) reports. They allow users to automatically build financial reports that are acceptable to governing agencies such as the IRS. In one embodiment, the reports are developed by a parser that transforms text documents into software elements containing a format with a hierarchal relationship between the software elements, and an editor that develops reports by referencing the software elements transformed from the text documents. Methods and systems in accordance with the present invention also enable reports to be automatically scheduled by gathering desired information from an accounting system, formatting the information into an XBRL document, and transmitting it to an end source. Furthermore, systems and methods in accordance with the present invention allow a user to translate an XBRL document into RDL format and use the RDL system to manipulate and analyze it.




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UNIVERSAL ADAPTOR FOR RAPID DEVELOPMENT OF WEB-BASED DATA VISUALIZATIONS

A method of web-based data visualization includes: a Frontend sending a request over a computer network to a server configured as a Backend; a web server of the second server fetching data responsive to the request; the web server sending a response to the Frontend in a format compatible with a plurality software adaptors located on the Frontend, the response including information about objects to be presented on a web component; logic of the Frontend passing the response to a selected one of the software adaptors; and the selected software adaptor rendering the using a web visualization library associated with selected software adaptor.




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Lever type handle and lock assembly for the same

A lock assembly for a lever type handle is disclosed. In the lock assembly for the lever type handle according to an aspect to the invention, the lever type handle is for opening and closing a door by a rotation of a handle portion. The lock assembly includes a key module rotated by a key member, wherein the key module being positioned in the handle portion, a rotary shaft rotated by a rotation of the key module and locking or unlocking the door through a dead lock member, and a rotation transmitter for transmitting the rotation of the key module to the rotary shaft.




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Portable low cost firearm safe

A rapid-access gun safe includes a portable enclosing structure and a communication module. The portable enclosing structure encloses a firearm. The portable enclosing structure includes a fixed portion and a collapsing wall. The collapsing wall provides rapid access to the firearm. The communication module is coupled to the fixed portion of the enclosing structure. The communication module facilitates incoming and outgoing electronic communication of at least one access signal from a device external to the rapid-access gun safe.




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Gun safe

A gun safe is configured to be mounted underneath a portion of an item of furniture and to be deployable from a storage position underneath the portion of the item of furniture into a readily-accessible position adjacent the item of furniture. The gun safe includes a lockable container sized to receive a weapon therein and an articulating mount configured to secure the lockable container underneath the portion of the item of furniture in the storage position. The articulating mount includes a fixed element configured to be fixed underneath the portion of the item of furniture and an articulating element attached between the fixed element and the lockable container, the articulating element being configured to facilitate movement of the lockable container from the storage position outward and upward to a deployed position adjacent the item of furniture.




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Cargo theft prevention using text messaging

Method for monitoring a cargo container in which a transmitter is arranged on the container and periodically transmits messages to a remote site or location according to a schedule of messages. When a message is not received according to the schedule, which may be the result of tampering with the transmitter or another nefarious action involving the container, it may be considered that the container has been stolen. A rate of transmission of the messages may be modified based on a condition of the vehicle, such as the presence of a driver inside the vehicle, a distance between a driver inside the vehicle and the vehicle, the vehicle being at rest after motion of the vehicle stops, a location of the vehicle, biometric identification of a driver of the vehicle and deviation of the vehicle from an expected route, and/or based on current time and weather around the vehicle.




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Safety lockout hasp with cable

A safety lockout hasp for interaction with equipment, infrastructure, machinery, appliances, tools, implements and the like. The hasp comprising a body, a cable for engaging the plant and a movable member being movable relative to the body between an open condition and a closed condition. The movable member interacting with the cable such that in the closed condition an intermediate portion of the cable is secured in its position relative to the body. The movable member also interacts with the body such that in use in the closed condition the hasp can accommodate a plurality of locking elements so that the hasp is prevented from disengagement from the plant when accommodating at least one of the plurality of locking elements, and when the movable member is in the open condition the hasp is prevented from accommodating any of the locking elements.




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Connection unit for connecting saw blade to handle

A hand tool includes a handle and a holding member is connected to the front end of the handle. A first part is connected to one end of the holding member and is connected to a second part connected to the front end of the handle. The first part has a first recess defined transversely therethrough. A second recess and a third recess are respectively in one side of the first part and communicate with the first recess. The second recess is located between the first and third recesses. A control unit has two pins which are movably cooperated with the first, second and the third recesses. The second pin is connected to the first pin. When pushing the first pin toward the second pin, the first part is shifted from the second part so that a blade is inserted into or removed from the first and second parts.




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Jab saw accessory tool for an oscillating tool

An accessory for a power tool, includes a mounting portion configured to mate with an oscillating drive member of a power tool. A support arm portion extends from the mounting portion in a first direction. The support arm portion includes an inner edge that faces in a second direction transverse to the first direction. A blade portion extends from the support arm generally in the second direction. The blade portion includes a trailing edge arranged facing generally toward the mounting portion and a leading edge arranged facing generally away from the mounting portion. The trailing edge and the leading edge portion meet to define a pointed tip portion.




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Reciprocating saw dust shroud

A dust shroud for reciprocating saws has a shroud body with bristles, a vacuum port and an attachment collar attached to the shroud body. The shroud has a slot formed through the collar and shroud body and is expandable and collapsible to fit different sizes of reciprocating saws.




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Shoe accessory for a saw

An accessory for a reciprocating saw, having a blade configured to cut a workpiece and a shoe including a guiding surface for engaging the workpiece, includes a body having a first face and a second face opposite the first face. The body includes a member proximate the second face for coupling the accessory to the shoe. A guiding surface is defined on the first face of the body for engaging a workpiece and an opening is formed in the body for receiving the blade. The guiding surface constitutes a modified surface configured to differ from the guiding surface of the shoe by at least one characteristic.




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Safety scalpel with replaceable blade cartridge and safety brake

A safety scalpel that incorporates a reusable metal scalpel handle (500) similar in shape and feel to the conventional metal handle preferred by most surgeons, and a disposable blade cartridge (300) that covers the blade (100) before, during and after use, and is easily mounted and released from the scalpel handle. The blade cartridge includes a blade (100) with similar cutting profiles as standard surgical blades, a blade holder that is permanently fixed to the blade, and a blade guard (300) that covers the blade and within which the blade holder (200) is able to slide. The scalpel handle is reusable, while the blade cartridge is disposable. The blade cartridge is attachable and detachable from the scalpel handle and may include a mechanical brake (1301) to prevent movement of the blade except when the reusable handle is in place. A safety latch feature (2230) is provided.




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Case with integral lubricant scavenge passage

A case comprises a radially inner case hub, a radially outer case section with an outer wall, a plurality of circumferentially distributed struts extending radially between the inner hub and the outer case section, and a lubricant scavenge passage disposed circumferentially apart from a bottom dead center (BDC) position of the case. The lubricant scavenge passage includes an inner scavenge section extending radially through a first one of the plurality of struts.




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Shoe ornament structure and method for making the same

A shoe ornament structure, comprises: a base layer, a sub-base layer, a ground color layer, a ornamental layer, a blocking wall and a transparent layer. The ground color layer has a predetermined thickness and is formed on the sub-base layer. The ornamental layer is formed with different grains or color or materials and located on the ground color layer. The blocking wall of a height 0.5-0.7 mm is formed on ornamental layer, and the transparent layer is formed in the area defined by the blocking wall.




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Elastic strap sandal

A sandal comprising an EVA midsole, an outsole and an elastic strap, wherein the elastic strap is stitched at the strap ends and blued to the bottom of the EVA midsole. The EVA midsole having a carved out section to accommodate the thickness of the elastic strap and stitching of the strap ends such that the elastic strap and stitching will lay flush against the bottom of the EVA midsole.




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Air conditioner and method for controlling the same

An air conditioner and control method thereof is provided which may be controlled to adapt operation to changes in power rates. The method may include receiving electric power related information, determining whether a current power rate included in the received information is higher than a preset reference value, determining occupancy of a space to be air conditioned if the current power rate is higher than the preset reference value, and controlling a flow rate of air supplied to the space based on the determined occupancy.




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Ice maker for a refrigerator appliance and a method for operating the same

An ice maker for a refrigerator appliance and a method for operating the same are provided. The ice maker includes a mold body that is rotatable relative to an ejector. The ejector is configured for selective receipt within the mold body to assist with removal of ice from the mold body. The ice maker also includes at least two sensors for monitoring rotational motion of the mold body. Utilizing the at least two sensors, the ice maker can monitor ice removal from the mold body.




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Solar collector based on carbon nanotubes and solar heating system using the same

A solar collector includes a substrate having a top surface and a bottom surface opposite to the upper surface, a sidewall, a transparent cover, and a heat-absorbing layer. The sidewall is arranged on the periphery of the top surface of the substrate. The transparent cover is disposed on the sidewall opposite to the substrate to form a sealed chamber. The heat-absorbing layer is disposed on the upper surface of the substrate and includes a carbon nanotube film having a plurality of carbon nanotubes. The carbon nanotubes in the carbon nanotube film are joined end-to-end.




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Fire safe camp stove and fire pit

A fire safe camp stove and fire pit device is disclosed. An example device includes a fire chamber. A first cooking surface is provided directly over the fire chamber. A lid is movable between an open position and a closed position. The lid in the open position provides access to the first cooking surface. The lid in the closed position provides a second cooking surface above the first cooking surface.




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Waste disposal plant with modular frame and guide assembly

A waste disposal plant includes a combustion chamber (2) inside which waste laid on a combustion grate (3) is burnt. The grate permits the entrance of an adequate quantity of combustion air in the chamber through it. The combustion grate includes at least a handling group formed by fire bars or plates (7), which move alternatively one with respect to the other by advancing the waste on the grate. A handling group allows the alternate movement of the fire bars (7) which are divided in movable fire bars (7a) and fixed fire bars (7b), alternately disposed one with respect to the other, on transversal rows resting one upon the other according to a longitudinal placement with alternate steps.




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Condensate collector system for multi-poise gas furnace system

A condensate collector system includes a condensate collector box having at least one condensate outlet port, and a condensate trap fluidly connected to the at least one condensate outlet port. The condensate trap is configured and disposed to be selectively positioned in multiple drain orientations relative to the condensate collector box to accommodate multiple installation configurations of the multi-poise gas furnace.




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***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***Combustible fluid cutting safety system

Embodiments of the present invention provide components and a system for providing a safer environment for using a cutting torch. The system includes a cutting torch and a control box. There is communication from the user to the control box to allow fluids to flow to the torch. The control box includes closed biased valve(s) such that if there is a condition where there is no instruction from the torch to the control box and/or power is lost, the valves will shut, preventing fluid from flowing into the torch.




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Firearm projectiles and cartridges and methods of manufacturing the same

Firearm projectiles and methods of manufacturing firearm projectiles from a supply of clad wire. In some embodiments, the clad wire is manufactured as electrical wire, such as copper-clad steel wire. Bullets and shot, as well as methods of forming bullets and shot, from clad wire are disclosed.




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Penetrator and method of manufacturing same

Penetrators and methods of manufacturing penetrators are disclosed. One method of manufacturing a penetrator having arrowhead geometry and base geometry includes the steps: (a) cold heading a piece of material to form a blank; (b) machining the blank to create the arrowhead geometry; and (c) roll forming the blank to create the base geometry. Another method of manufacturing a penetrator having arrowhead geometry and base geometry includes the steps: (a) machining a piece of material to create the arrowhead geometry; and (b) roll forming the piece of material to create the base geometry. Yet another method of manufacturing a penetrator from a blank includes the steps: (a) machining the blank to create a first surface feature of the penetrator; and (b) roll forming the blank to create a second surface feature of the penetrator.




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Method for combating explosive-charged weapon units, and projectile designed for the same

The invention relates to a method of with a projectile (1) comprising a reactive charge (4), combating an explosive-charged weapon unit (7), preferably an enemy shell, so that undesirable harmful effects on the environment are reduced, wherein the projectile (1) is configured to penetrate the surface (8) of the weapon unit (7) upon impact so that a passage (9) is opened into the explosive (10) of the weapon unit (7), through which passage (9) the reactive charge (4), under the influence of the kinetic energy of the projectile (1), is transferred to the explosive (10) of the weapon unit (7). The method can be deemed to be characterized in that the reactive charge (4), upon contact with the explosive (10) of the weapon unit (7), reacts and starts a hypergolic reaction with the explosive (10). The invention also relates to a projectile (1) for the said method.




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Firearm projectiles and cartridges and methods of manufacturing the same

Firearm projectiles and methods of manufacturing firearm projectiles from a supply of clad wire. In some embodiments, the clad wire is manufactured as electrical wire, such as copper-clad steel wire. Bullets and shot, as well as methods of forming bullets and shot, from clad wire are disclosed.




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Ammunition articles and methods for making the same

A method of making an ammunition article and associated ammunition article is provided. The ammunition article is interchangeable with standard ammunition articles and to operate in standard chambers of standard weapons systems and of the type having a casing including a sidewall that defines a casing volume within. The method includes determining a desired propellant charge volume for a given ammunition article, determining a thickness of the casing sidewall such that the casing volume substantially corresponds to the desired propellant charge volume, and forming the casing having the determined thickness.




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Heat transport fluid passage device with hydrophobic membrane

A heat transport fluid passage device for a heat transport circuit has a wall defining a passage through which a heat transport fluid flows. The heat transport fluid contains a solvent made of water or an organic substance and fine particles dispersed in the solvent. A hydrophobic membrane is formed on a surface of the wall.




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Finned tube for evaporation and condensation

A finned tube includes channels defined between adjacent fins on the tube body outer surface. Wings extend from side walls of the adjacent fins between the fin top and the fin base such that the wings form a barrier which splits the channel into an upper channel and a lower channel. A plurality of holes penetrate the barrier where the wings meet, so liquids and gases can pass into and out of the enclosed area defined by the lower channel. The wings can include alternating upper wings and lower wings, and there can be depressions formed in the fin top.




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Components for exhaust system, methods of manufacture thereof and articles comprising the same

Disclosed herein is a sintered composition comprising iron; about 0.05 to about 1 wt % molybdenum; about 3 to about 4.5 wt % silicon; about 0.05 to about 0.5 wt % chromium; about 0.011 to about 0.015 wt % magnesium; all weight percents being based on the total weight of the composition; the composition being devoid of carbon except for trace amounts; and wherein the composition is sintered. Disclosed herein too is a method comprising blending a powdered composition that comprises iron; about 0.05 to about 1 wt % molybdenum; about 3 to about 4.5 wt % silicon; about 0.05 to about 0.5 wt % chromium; about 0.011 to about 0.015 wt % magnesium; all weight percents being based on the total weight of the composition; the composition being devoid of carbon except for trace amounts; compacting and sintering the composition.




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Sliding part and method of manufacturing the same

There is provided a sliding part in which a surface coverage ratio of copper in the sliding part increases. A bearing which is the sliding part is formed by filling the raw powder into the filling portion of the forming mold, compacting the raw powder to form a powder compact, which is sintered. A copper-based raw powder is composed of a copper-based flat raw powder whose diameter is smaller than that of an iron-based raw powder and an aspect ratio larger than that of the iron-based raw powder, and a copper-based small-sized raw powder whose diameter is smaller than that of the copper-based flat raw powder. The copper is allowed to segregate at the surface of the sliding part. The surface of the bearing is covered with the copper-based small-sized raw powder and the copper-based flat raw powder, thereby the surface coverage ratio of copper can be increased.




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Slide hammer for a tire spoon and method of construction of the same

A slide hammer may be provided. The slide hammer may include: a body defining a through hole and a first attaching surface; an auxiliary weight having a second attaching surface configured to attach to the body at the first attaching surface, the auxiliary weight having a through hole located to align with the through hole in the body when the auxiliary weight is attached to the body; and a shaft located in the through holes in the body and auxiliary weight. A method of constructing a slide hammer is provided.




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Inflator apparatus, system and method for utilizing the same

An inflator apparatus for inflating more than one un-inflated tire-wheel assembly is disclosed. The inflator apparatus includes a support structure; an interface portion rotatably-attached to the support structure, wherein the interface portion includes a plurality of inflator heads, wherein each inflator head of the plurality of inflator heads includes a fluid inlet; a plunger portion movably-connected to the support structure, wherein the plunger portion is movably-connected to the support structure to permit selectively coupling of the plunger portion with one inflator head of the plurality of inflator heads; and a fluid conduit connected to the plunger portion, wherein the fluid conduit is fluidly connectable with the fluid inlet of the one inflator head of the plurality of inflator heads. A system for processing more than one un-inflated tire-wheel assembly is also disclosed. A method for utilizing an inflator apparatus for inflating more than one un-inflated tire-wheel assembly is also disclosed.




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Bead seater apparatus and method for using the same

An apparatus for seating a bead of a tire adjacent a bead seat of a wheel is disclosed.




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Thin gauge steel sheet excellent in surface conditions, formability, and workability and method for producing the same

The present invention provides ultralow carbon thin gauge steel sheet and a method for producing the same where coalescence and growth of inclusions in the molten steel are prevented and the inclusions are finely dispersed in the steel sheet, whereby surface defects and cracks at the time of press forming are prevented, growth of recrystallized grains at the time of continuous annealing is promoted, and a high r value (r value≧2.0) and elongation (total elongation≧50%) are exhibited, that is, ultralow carbon thin gauge steel sheet excellent in surface conditions, formability, and workability comprised of, by mass %, 0.00030.003%≦C≦0.003%, Si≦0.01%, Mn≦0.1%, P≦0.02%, S≦0.01%, 0.0005%≦N≦0.0025%, 0.01%≦acid soluble Ti≦0.07%, acid soluble Al≦0.003%, and 0.002%≦La+Ce+Nd≦0.02% and a balance of iron and unavoidable impurities, said steel sheet characterized by containing at least cerium oxysulfite, lanthanum oxysulfite, and neodymium oxysulfite.




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Steel material superior in high temperature characteristics and toughness and method of production of same

A steel material superior in high temperature characteristics and toughness is provided, that is, a steel material containing, by mass %, C: 0.005% to 0.03%, Si: 0.05% to 0.40%, Mn: 0.40% to 1.70%, Nb: 0.02% to 0.25%, Ti: 0.005% to 0.025%, N: 0.0008% to 0.0045%, B: 0.0003% to 0.0030%, restricting P: 0.030% or less, S: 0.020% or less, Al: 0.03% or less, and having a balance of Fe and unavoidable impurities, where the contents of C and Nb satisfy C—Nb/7.74≦0.02 and Ti-based oxides of a grain size of 0.05 to 10 μm are present in a density of 30 to 300/mm2.




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NdFeB system sintered magnet and method for producing the same

Provided is a NdFeB sintered magnet which can be used in the grain boundary diffusion method as a base material in which RH can be easily diffused through the rare-earth rich phase and which itself has a high coercive force, a high maximum energy product and a high squareness ratio, as well as a method for producing such a magnet. A NdFeB system sintered has an average grain size of the main-phase grains magnet is equal to or smaller than 4.5 μm, the carbon content of the entire NdFeB system sintered magnet is equal to or lower than 1000 ppm, and the percentage of the total volume of a carbon rich phase in a rare-earth rich phase at a grain-boundary triple point in the NdFeB system sintered magnet to the total volume of the rare-earth rich phase is equal to or lower than 50%.




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High Al-content steel sheet excellent in workability and method of production of same

The present invention provides a high Al-content steel sheet having an excellent workability and a method of production of the same at a low cost by mass production, a high Al-content metal foil and a method of production of the same, and a metal substrate using a high Al-content metal foil, that is, a high Al-content steel sheet having an Al content of 6.5 mass % to 10 mass %, the high Al-content steel sheet characterized by having one or both of a {222} plane integration of an α-Fe crystal with respect to the surface of the steel sheet of 60% to 95% or a {200} plane integration of 0.01% to 15% and a method of production of the same, a high Al-content metal foil and a method of production of the same, and a metal substrate using a high Al-content metal foil.




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Method for case hardening a component by means of oil jets and device for carrying out said method

A method for treating a component comprising a metallic or ceramic material with a crystalline, semi-crystalline or amorphous structure. According to the method, to case-harden the component, at least part of the surface of the component is exposed to an oil jet, while the temperature of the oil and/or the component is regulated. Also disclosed is a device for carrying out the method.




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Composite steel part and manufacturing method for the same

A manufacturing method for a composite steel part including manufacturing a first steel part by preparing an intermediate product in which an extra portion is added, and heating the intermediate product to an austenitizing temperature in a carburizing atmosphere to form a carburized layer, cooling the intermediate product at a rate less than a cooling rate at which martensitic transformation is caused and in which the intermediate product is cooled to a temperature equal to or less than a temperature at which structure transformation due to the cooling is completed, heating the intermediate product to an austenitizing range by high-density energy and thereafter cooled at a rate equal to or more than the cooling rate at which martensitic transformation is caused to form a carburized quenched portion, cutting the extra portion of the intermediate product, and welding the first steel part and the second steel part to each other.




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Steel sheet for cans with excellent surface properties after drawing and ironing and method for producing the same

A component composition contains, by % by mass, 0.0016 to 0.01% of C, 0.05 to 0.60% of Mn, and 0.020 to 0.080% of Nb so that the C and Nb contents satisfy the expression, 0.4≦(Nb/C)×(12/93)≦2.5. In addition, the amount of Nb-based precipitates is 20 to 500 ppm by mass, the average grain diameter of the Nb-based precipitates is 10 to 100 nm, and the average crystal grain diameter of ferrite is 6 to 10 μm. Nb is added to ultra-low-carbon steel used as a base, and the amount and grain diameter of the Nb-based precipitates are controlled to optimize the pinning effect. Grain refinement of ferrite is achieved by specifying the Mn amount, thereby achieving softening and excellent resistance to surface roughness of steel.