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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8047043 | Punch die and punch machine using the same An exemplary punch die (30) includes a lower die (40) and an upper die (50). The lower die includes a die core (45), a blank holder (417), and a cylinder (413) disposed in the lower die. The blank holder is disposed on a per... | 11/01/2011 |
| 8033154 | Steering rack manufacture A die apparatus and method for performing a flashless forging operation to manufacture the toothed portion of a steering rack. The die apparatus includes first and second die members and at least one punch member, each having a forming surface shaped substantially a... | 10/11/2011 |
| 7900493 | Closed forging die and forging method A closed forging die and a forging method with which sagging can be reduced, a constant velocity joint and a universal joint can be made compact and lightweight, removal of a shaft tip thereof by machining prior to heat treatment is not required, and material costs ... | 03/08/2011 |
| 7886567 | Steering rack manufacture A die apparatus and method for performing a flashless forging operation to manufacture the toothed portion of a steering rack. The die apparatus includes first and second die members and at least one punch member, each having a forming surface shaped substantially a... | 02/15/2011 |
| 7634934 | Forged roller A machine, method and tooling to precision cold-form roller blanks for anti-friction bearings. The machine is a multistage progressive former using floating die cavities to enable simultaneous shaping of the ends of the roller with high accuracy and without flash. T... | 12/22/2009 |
| 7406852 | Upsetting method and upsetting apparatus An upsetting method capable of executing diameter expansion of a diameter expansion scheduled portion of a raw material unevenly in a peripheral direction is provided. A guide 20 having an insertion hole 21 for receiving and holding the diameter expans... | 08/05/2008 |
| 7389668 | Metal molding method and machine, and metal molded body The present invention provides a metal molding method, a metal molding machine and a metal molded body, wherein using a mold in which a molding space having a predetermined shape and a metal body lead-in space which is communicated with the molding space are formed,... | 06/24/2008 |
| 7360387 | Upsetting method and upsetting apparatus To provide an upsetting method capable of efficiently expanding a bar-shaped raw material at least two portions. A plurality of guides 31 and 32 each having an insertion hole 34 are prepared. The bar-shaped raw material 1 secured to a fix... | 04/22/2008 |
| 7353684 | Method and apparatus of manufacturing drum An apparatus and method of manufacturing a drum, for use in an appliance such as a dryer, that prevents noise and vibration during operation. The method involves forming a cylindrical drum; reducing a diameter at both ends of the drum; forming beads in a central par... | 04/08/2008 |
| 7343768 | Method of net-forming an article and apparatus for same A method of forming an article such as a helical gear and an apparatus for forming the article are provided. The method includes applying pulsating pressure downward to extruding the work piece and, while the pressure is applied downward, injecting fluid to surround... | 03/18/2008 |
| 7281329 | Method for fabricating a roller follower assembly The present invention relates to a method for fabricating a roller follower assembly, comprising the steps of fabricating a lash adjuster body, fabricating a roller follower body, fabricating a leakdown plunger, fabricating a socket, wherein at least one of the lash... | 10/16/2007 |
| 7172483 | Method of making metallic shell for spark plug, method of making spark plug having metallic shell and spark plug produced by the same A method of making a metallic shell for a spark plug. The metallic shell includes a multi-stepped through hole, an intermediate tubular portion, a tip end side tubular portion and a base end side tubular portion. The through hole includes a large diameter hole secti... | 02/06/2007 |
| 7082808 | Making plate workpiece with regions of different thickness A method of making a part with regions of different thickness from a plate workpiece having a pair of substantially parallel plate faces. The workpiece is fitted between a surface of a die and a substantially parallel surface of a punch. The die is formed at its sur... | 08/01/2006 |
| 7000444 | Forging method and apparatus A method of producing a bevel gear, particularly a bevel ring gear, the bevel gear comprising mounting surfaces. The method comprising the steps of flashless warm forging a blank, preferably an annular blank, in a forging die to produce the bevel gear with precision... | 02/21/2006 |
| 6898836 | Method of securing a sleeve in a tubular member A method for forming a hollow part (18) that allows the use of hydroforming in cases where the part interconnects between sections having extreme variations in cross-section. A complete hollow part (18) is formed by joining a hydroformed hollow section... | 05/31/2005 |
| 6886250 | Method of manufacturing for aluminum alloy wheel rim The manufacturing method for an aluminum alloy wheel rim consists of the following steps: (1) cutting aluminum alloy material; (2) heating the aluminum alloy material to make a marked center and fillet preformed blank; (3) forging the marked center and fillet prefor... | 05/03/2005 |
| 6745468 | Method of manufacturing a boat steering wheel with finger grip indentations A formed stainless steel steering wheel is produced by a process that includes starting with a linear stock of round tubing which is then formed into a generally circular shape with an oval-shaped cross-section. The two ends of the curved tubing are then welded toge... | 06/08/2004 |
| 6708549 | Method and device for moulding a tripod spider A method of and device for forming a tripode star for a tripode joint, which tripode star comprises an annular hub member and three arms which adjoin the hub member, extend radially relative to a longitudinal axis (A) and form faces of spherical portions each positi... | 03/23/2004 |
| 6427326 | Method of manufacturing connecting rod A connecting rod is formed by cold forging in a single pressing cycle at a good accuracy without separately preparing a large-end cap, to thereby reduce the manufacturing cost. A double-action type of forging apparatus is made up of an upper die, a lower ... | 08/06/2002 |
| 6397652 | Tool body and method of manufacture A tool body is cold formed by inserting a blank into a die which defines a portion of the outer surface of the tool body after which a punch applies an impact to the blank causing the outer surface of the blank to conform to the contour defined by the die... | 06/04/2002 |
| 6161414 | Method of and device for finishing cage windows The invention relates to a method of finishing cage windows in a ball cage for a constant velocity universal ball joint. The ball cage for use with the present invention has the shape of an annular member which comprises two parallel annular edges and a c... | 12/19/2000 |
| 5964023 | Method and system of manufacturing mechanical joint A mechanical joint tube assembly and method of creating the same is disclosed for providing an improved fluid fitting assembly. A fitting having a primary tapered bore is forced onto a tube that has a larger diameter. The tube is radially contracted in ce... | 10/12/1999 |
| 5862701 | Apparatus for manufacturing steering rack bars A forging die for forming a steering rack portion having teeth and two longitudinally extending guide faces from a blank. The die comprising first (18) and second (19) die members and four forming elements (52, 53, 54, 55) to converge on the blank. The fi... | 01/26/1999 |
| 5765425 | Radial extrusion process combined with inside tune ironing A subject of the invention is the radial extrusion process combined with inside tube ironing, which is in essence a cold extrusion process and can be reckoned among bulk metal forming processes. It enables tube shaped metal semiproducts to be formed into ... | 06/16/1998 |
| 5746085 | Gear forming method A method of forming a gear through cold plastic working comprises preparing a disc-like blank, and pressing conically a central portion of the blank with a uniform pressure from upper and lower sides to cause plastic deformation in the blank thereby to fo... | 05/05/1998 |
| 5642851 | Method of producing a circular fibre-reinforced metal article, and apparatus for use in said method An apparatus for producing a circular metal article reinforced by fibres in selected parts of its cross-section is described in which a metal blank of the article is formed and provided with at least one annular groove opening in the axial direction, pref... | 07/01/1997 |
| 5600992 | Die set An object of the present invention is to provide a die set, which is capable of removing the influence of heat expansion and the change of the number of the collared holes and improving the accuracy of the collar height. In a die set including an upper di... | 02/11/1997 |
| 5575172 | Device for producing hollow bodies according to an internal high pressure metal forming process A device for producing a hollow body according to an internal high pressure metal forming process has a tool which is divided along a mold joint into a stationary tool part and a liftable tool part. The tool has an impression for receiving a tube-shaped b... | 11/19/1996 |
| 5573622 | Apparatus for fabricating multilayer structures A method of fabricating a plurality of multilayer structures which includes at least one recess defined by a nonplanar surface. The method comprising the step of: (a) providing a resilient, compliant material on over one or more stacks of layers including... | 11/12/1996 |
| 5568745 | Method and apparatus for making disc wheels and wheels made thereby An improved wheel disc and disc and and rim wheel assembly, and method and press apparatus for manufacturing the same. The wheel disc is adapted for telescopic press fit precision mounting into a mating wheel rim to form the wheel assembly. A flat disc bl... | 10/29/1996 |
| 5507167 | Process and device for providing a shaft with splines A forming process for providing a shaft with splines in that the shaft is provided with splines in such a way that the complete tooth depth is ensured over the entire length to be provided with teeth and any distortions which may occur are minimized in th... | 04/16/1996 |
| 5174147 | Method and apparatus for cold extruding universal seal crosspieces A spider or cross for a universal joint is manufactured by first forging the basic configuration of the cross and thereafter extruding the trunnions into their final configuration. The component is initially hot or warm forged into its basic configuration... | 12/29/1992 |
| 5119663 | Method and apparatus for cold extruding universal seal crosspieces A spider or cross for a universal joint is manufactured by first forging the basic configuration of the cross and thereafter extruding the trunnions into their final configuration. The component is initially hot or warm forged into its basic configuration... | 06/09/1992 |
| 4996863 | Radially convergent hot forging apparatus and method Disclosed is a method and apparatus for hot forging an elongated cylindrical hot billet formed of lightweight metal alloy or metal matrix composite material into an integral high strength structural member having at least two extensive walls projecting ou... | 03/05/1991 |
| 4951377 | Core sizing method A method for predeterminately sizing a core using a pair of generally opposed die means operable for compressing only an outer circumferential section of the core defined generally axially between a pair of opposite end faces of the core at least generall... | 08/28/1990 |
| 4932251 | Method of producing a core for a fuel injector A bar-like workpiece is axially compressed to form a flange at the intermediate portion thereof. Then, the workpiece with the flange is held by dies and its one axial end surface is received by a receiver die. The receiver die has a recess formed at the c... | 06/12/1990 |
| 4815193 | Rivet installation tool and method of installing rivets A tubular sleeve clamps the work during a drilling step, following which a tubular anvil moves within the sleeve to support the work while a rivet is thrust into the work with an interference fit. The tubular anvil is then withdrawn and moved with an anvi... | 03/28/1989 |
| 4723433 | Method and apparatus for doming can bottoms A doming assembly for doming the bottom wall of a can body. A bodymaker punch urges a can bottom wall first against a forming ring and then against a domer die. The forming ring forms an outer annular portion of a dome and the domer die forms a central po... | 02/09/1988 |
| 4693104 | Process for manufacturing a single piece aluminum alloy wheel rim for vehicle tires A process for forming a single piece rim for vehicle tires comprising the steps of deforming a toroid of aluminum alloy material in axial opposite directions so as to form a hollow tubular element of predetermined length and thickness having an annular in... | 09/15/1987 |
| 4571982 | Apparatus for making steering rack bars A die for forming a Y-form rack portion of a steering rack bar from a blank by forging in which the die has at least three forming elements (44, 47, 48) relatively movable on application of forging pressure to the die to converge on a blank therein, a fir... | 02/25/1986 |
