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| Number | Title | Issue Date |
| 8037733 | Methods and apparatus for manufacturing an intravascular stent The invention relates to methods and apparatus for manufacturing intravascular stents wherein the intravascular stent has its inner surface treated to promote the migration of endothelial cells onto the inner surface of the intravascular stent. In particular, the in... | 10/18/2011 |
| 7350386 | Method and apparatus for making tubes In a method of making a tube, a sheet metal blank is placed in a U-shaped cavity of a lower mold of a shaping tool, and pressed into the cavity by a ram to shape the blank into a U-shaped configuration. In a next process step, the U-shaped blank is formed between an... | 04/01/2008 |
| 7325435 | Method of manufacturing, apparatus and resulting irregular shaped cross section tubes A method and apparatus for making a tube having an inverted cross section and the resulting tube made thereby. ... | 02/05/2008 |
| 7275407 | Process for producing rotationally symmetrical components A process for producing a hollow monoblock shaft from a pipe, the pipe initially having a constant diameter and a constant wall thickness, and the monoblock component including at least one area of its length being of a smaller outside diameter and a greater wall th... | 10/02/2007 |
| 7254980 | Gas supply tube and method of making same A metal gas-feed tube for a head air bag automotive vehicle has a sleeve formed on a bent end thereof to fit onto a connecting fitting of a gas generator. That sleeve is formed in part from an unbent region of the tube by pressing a mandrel into the end of the tube ... | 08/14/2007 |
| 7237424 | Split die for forming grooved workpiece A method of forming a radially expandable externally grooved tubular fastener from metal, comprising the steps of providing a suitable tubular blank (11) having a tubular wall (12) and squeezing the tubular wall between an internal member (17) w... | 07/03/2007 |
| 7225541 | Method for producing hollow rack bar A method for forging a rack bar from a blank pipe. Prior to the rack forging process, a blank pipe is subjected to a process for obtaining an adjustment of a cross-sectional shape of the blank pipe. Such a preliminary adjustment is constructed by a swaging process f... | 06/05/2007 |
| 7210325 | Tube thread forming apparatus and method A tube partial thread forming apparatus and method is disclosed. A tube is placed on the apparatus around internal die sections, which are separated by a mandrel to cause the internal die sections to engage the tube. stripper pieces are moved into engagement around ... | 05/01/2007 |
| 7204419 | Method and apparatus for reading firearm microstamping An indicia for marking on an object, such as a cartridge case, for representing selected information, such as identification indicia identifying the firearm that discharged the cartridge, and methods and apparatus for generating, imprinting and reading the identific... | 04/17/2007 |
| 7124491 | Hemming apparatus and method using a horizontal motion for actuating the die sets An apparatus for horizontally actuating hemming and stamping die sets includes a horizontal base support and a roller device horizontally mounted thereon. A linear guidance system is set in and a drive support is vertically attached to the base support. A drive mech... | 10/24/2006 |
| 7107805 | Method for the production of a spindle nut of a spherical thread drive mechanism Method for the production of a spindle nut (3) of a spherical thread drive mechanism, whereby the spindle nut (3) has at least one screw-shaped track (4) formed as a single piece on its inner circumference, whose threads (38) are limited ... | 09/19/2006 |
| 7093476 | Method for fabricating thin californium-containing radioactive source wires A method for reducing the cross-sectional diameter of a radioactive californium-containing cermet wire while simultaneously improving the wire diameter to a more nearly circular cross section. A collet fixture is used to reduce the wire diameter by controlled pressu... | 08/22/2006 |
| 7069764 | Method for manufacturing a hollow rack shaft A hollow rack shaft is manufactured through a first step, a second step and a third step. At the first step, the plate-like workpiece of substantial rectangular shape is press formed into a gutter-like shape. The first die set used at this step is provided with slan... | 07/04/2006 |
| 6898853 | Method for manufacturing a hollow rack shaft A hollow rack shaft is manufactured through a first step, a second step and a third step. At the first step, the plate-like workpiece of substantial rectangular shape is press-formed into a gutter-like shape. At the second step, a row of rack teeth is press-formed b... | 05/31/2005 |
| 6854313 | Tube crimping/bending apparatus Tube bending/crimping apparatus has a frame, a toggle assembly and a carriage assembly. The toggle assembly has overlapping male dies with tapering working tips that form a self-centering wedge. The carriage assembly has a shaft with a pinion that engages a rack on ... | 02/15/2005 |
| 6851172 | Method for securing a rod-shaped part in a holding member In a method of securing a rod-shaped part in a surrounding holding member, a flat holding member is fabricated with opposite side edges that are formed with elements configured for interlocking engagement. The side edges of the holding member are bent upwards, and t... | 02/08/2005 |
| 6845560 | Method for manufacturing a hollow rack shaft Methods are provided for forming a hollow rack shaft from a workpiece comprising a rectangular plate. The workpiece is first bent into a gutter-like shape using a first die set. Rack teeth are then press-formed in a portion of the gutter-like shape using a second di... | 01/25/2005 |
| 6779271 | Method for manufacturing a hollow rack shaft A hollow rack shaft is manufactured through a first step, a second step and a third step. At the first step, the plate-like workpiece of substantial rectangular shape is press formed into a gutter-like shape. The first die set used at this step is provided with slan... | 08/24/2004 |
| 6718813 | Pipe rack forming method and apparatus In a pipe rack forming method, in a state of holding a pipe forming body by a holding portion in a holding metal mold, at a time of pressing a flat surface portion of the pipe forming body by tooth bottom forming surfaces of respective stages of tooth profile portio... | 04/13/2004 |
| 6631544 | Method for installing end member to hollow shaft member To develop a method for installing an end member to a hollow shaft member for an office equipment in which a high degree of coaxiality and a high degree of vertical state can be attained, its manufacturing stages are simple and they can be realized under ... | 10/14/2003 |
| 6505493 | Support bar and method for forming a support bar A support bar of a headrest assembly or a hand brake is provided with one or more notches or indented portions. The notches or indented portions are formed in a way that inhibits the formation of additional material portions extending outwardly from the s... | 01/14/2003 |
| 6502598 | Backflow prevention assembly A backflow prevention assembly has a unitary housing with a passage therethrough, two threaded regions formed in an inner surface of the unitary housing, and two valve assemblies positioned in the passage to prevent fluid flow in a direction. Each valve a... | 01/07/2003 |
| 6481260 | Device for embossing metal pipe A device for embossing metal pipe is disclosed. The device includes a core having a plunger hole and a plurality of core pass through holes perpendicular to the plunger hole. The device also includes a plunger for moving through the plunger hole to push t... | 11/19/2002 |
| 6453714 | Method of forming an eccentrically expanded pipe and eccentrically pipe-expanding device In forming a fuel inlet pipe FP, (1) a portion of a base pipe is expanded by use of an expander punch to form a processed pipe comprising a neck portion, of which the diameter is the same as that of the base pipe, a tapering portion, and an expanded porti... | 09/24/2002 |
| 6430812 | Superplastic forming of tubing pull-outs A tubular part having a tubular main body and an integral tubular protrusion projecting laterally from the side of the main body and in fluid-tight communication therewith is superplastically formed by inserting the tube in a cavity of a die base and heat... | 08/13/2002 |
| 6317979 | Method of manufacturing a hollow rack bar A manufacturing method of a hollow rack bar wherein the load imposed on the rack teeth configuration of a forming die is reduced and precision level of the formation of rack teeth is improved. After the formation of a flat portion, a steel pipe is placed ... | 11/20/2001 |
| 6293013 | Backflow prevention assembly A backflow prevention assembly has a unitary housing with a passage therethrough, two threaded regions formed in an inner surface of the unitary housing, and two valve assemblies positioned in the passage to prevent fluid flow in a direction. Each valve a... | 09/25/2001 |
| 6289710 | Method of manufacturing a hollow rack bar A method for manufacturing a hollow rack bar having a flat portion thick enough, which prevents difficulty in pulling out a core after press working. The flat portion is formed by inserting the core having an approximately central depression in the longit... | 09/18/2001 |
| 6119501 | Method of deforming an initial pipe having a circular cross-section into a U-shaped section and device for carrying out the method A method of deforming an initial pipe having a circular cross-section into an U-shaped section and a device for carrying out the method wherein the inner surface of one half of the initial pipe rests in a positively engaging manner against the inner surfa... | 09/19/2000 |
| 6101858 | Forming method for forked artistic aluminum or copper alloy pipes A method for forming artistic forked pipes made of aluminum or copper alloy, including the steps of selecting of extruded material, milling for making an extruded pipe, enlarging the bore of a main pipe, and forming to form forked branch pipes. Wherein, a... | 08/15/2000 |
| 5956847 | Method for manufacturing a fluid coupling apparatus A method for manufacturing a fluid coupling apparatus for communicating fluid between a fluid hose and a heat exchanger. The present invention provides an inexpensive method for producing an integral fluid coupling apparatus that minimizes and eliminates ... | 09/28/1999 |
| 5950482 | Method for shaping tubular member A tubular member to be shaped comprises a first portion to be shaped and a second portion other than the first portion. A punch having a projection is inserted into the tubular member and the tubular member is pressed between a die having a recess and an ... | 09/14/1999 |
| 5941118 | Die forging method for metallic hollow pipes A method for forging a die core with a given shape for manufacturing metallic hollow pipes with a thin wall, the method is completed by using a hollow can shaped plastic film loaded with a filler, the plastic film is endued with embossment in conformity w... | 08/24/1999 |
| 5894753 | Method of producing splines on a shaft In a method of producing splines on a shaft, cold deformation without removal of chips is effected on the outside face of a small-thickness tube in a single operation. The cold deformation includes hammering the small-thickness tube by a conjugate and sim... | 04/20/1999 |
| 5836194 | Portable tube-bending machine A portable tube-bending machine for receiving a length of tubular material 10 and repeatedly crimping the length of tubular material 10 to form an elbow. It includes a so-called toggle assembly 24, a carriage assembly 70 and an operating shaft assembly 50... | 11/17/1998 |
| 5784918 | Method and apparatus for swaging metallic embossed pipes A method and an apparatus for swaging a metallic embossed pipe to form concavities in its wall units, wherein, a die core made from a holding pipe having surface meshes and a plastisol filler is provided in the metallic pipe mounted in a circularly swagin... | 07/28/1998 |
| 5749135 | Method for extruding integral seat back frame A method for producing a U shaped seat back frame from a single extruded blank. The blank's cross section is nearly circular, but with a pair of short, flattened off crests that create a pair of concentric arcs, in cross section. Over a length of each end... | 05/12/1998 |
| 5513513 | Metal forming tool A metal forming tool has a pair of jaws which are pivotally connected to one another. One of the jaws is provided with a channel which is part-circular in longitudinal direction of the channel and defines a part-circular arc in a plane passing through the... | 05/07/1996 |
| 5419174 | Apparatus for forming tubular risers and manifolds including tubular risers A manifold for a heat exchanger is formed by placing a blank having a siamesed pair of tubular passages supported by a first mandrel into a die cavity which receives the blank and defines at least one riser channel extending from the cavity. Each riser ch... | 05/30/1995 |
| 5337477 | Methods and apparatus for forming tubular risers and manifolds including tubular risers A manifold for a heat exchanger is formed by placing a blank having a siamesed pair of tubular passages supported by a first mandrel into a die cavity which receives the blank and defines at least one riser channel extending from the cavity. Each riser ch... | 08/16/1994 |
