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| Number | Title | Issue Date |
| 7370397 | Tool kit and method for repairing a damage vehicle body member with a hem flange A method and kit for repairing vehicle door skins by reorienting vehicle hem flanges from a closed orientation to an open orientation to allow removal of a damaged door skin from a door frame and replacing with a new door skin with an open orientation hem flange tha... | 05/13/2008 |
| 7207231 | Rack gear and method of making same A rack (20) for a rack and pinion steering system (10) includes a fully dense powder metal rack tooth section (50) joined, by sintering, to a hollow rack tube (30). The rack tooth section (50) is formed by pressing powder metal ( | 04/24/2007 |
| 7182590 | Mold clamping mechanism of injection molding machine A toggle type mold clamping mechanism for preventing the degradation of parallelism between stationary and movable platens, which is caused due to a clearance between a pin and a bushing, with use of a simple construction. A mold clamping force acting on the pin is ... | 02/27/2007 |
| 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 |
| 6826945 | Method for producing a rack A technique for manufacturing a gear rack (5) for a rack-and-pinion steering gear for automobiles makes use of a blank (18) for the gear rack (5) having at least in the latter's toothed area a form deviating from a circular cylinder. Size and fo... | 12/07/2004 |
| 6742376 | Method and apparatus for manufacturing structures with improved fatigue life A compound indenter for metal coldwork, and a method of employing such tooling. The compound indenter tool is used to produce deformation in a workpiece structure, to provide a selected beneficial residual stress profile in the workpiece, in order to provide high fa... | 06/01/2004 |
| 6626020 | Method of producing vibration-isolating bushing A method of producing a vibration-isolating bushing with which it is possible to secure a larger area of the edge surface of an inner cylinder than in the prior art method. In upsetting one extremity of the inner cylinder by cold plastic working, after a ... | 09/30/2003 |
| 6473957 | Method and device for connecting overlapping flat parts The invention relates to a method for connecting overlapping flat parts in a mechanical joining process, for example for connecting panels, using a mould stamp (1a) and a matrix which is provided with a recess, the parts to be connected being placed betwe... | 11/05/2002 |
| 6467323 | Plate reduction press apparatus and methods A material 1 to be shaped is reduced and formed by bringing dies with convex forming surfaces, when viewed from the side of the transfer line of the material 1, close to the transfer line from above and below the material 1, in synchronism with each other... | 10/22/2002 |
| 6457339 | Rocking press machine A rocking press machine includes a swinging metal die 2 and a rocking shaft 1 mounted above the metal die 1 and transmitting a swinging motion to the metal die 2, with the angle of eccentricity of the central axis thereof and the angular velocity of the o... | 10/01/2002 |
| 6341516 | Plate reduction press apparatus and methods A material 1 to be shaped is reduced and formed by bringing dies with convex forming surfaces, when viewed from the side of the transfer line of the material 1, close to the transfer line from above and below the material 1, in synchronism with each other... | 01/29/2002 |
| 5561998 | Rotary forming apparatus and method A rotary apparatus (10) for forming materials such as sheet metal has upper and lower rotary members (12,14) rotating in unison on opposite sides of a moving strip of material, at least one die support (30,32) movably supported on each rotary member for c... | 10/08/1996 |
| 5398536 | Wobble press In a wobble press with a first wobbling die-half (1) and an axially parallel moving second half-die (2), the wobbling motion is generated by a plurality of hydraulically actuated working pistons (5) cyclically engaging with the wobbling half-die (1). By m... | 03/21/1995 |
| 5237848 | Method and apparatus for expanding and contouring honeycomb core A method and apparatus for expanding and contouring honeycomb preforms into compound curved honeycomb core sheets. Honeycomb preforms are provided having a plurality of face to face, contiguous, strips bonded together at selected narrow areas such that wh... | 08/24/1993 |
| 5195351 | Arrangement for clamping and balancing pressing tool carriers and crank housing of an upsetting press An arrangement for clamping and balancing pressing tool carriers and crank housing of an upsetting press for the width reduction of rolled material, particularly for reducing the wide of the slabs in hot-rolled wide strip breaking-down trains, with tool c... | 03/23/1993 |
| 5168744 | Apparatus for replacing pressing dies in upsetting press For replacing pressing dies (7) in an upsetting press (1) used for width reduction of rolled material, such as for reducing slab width in hot rolled wide strip shaping trains, the width reduction is effected by the pressing dies (7) held in die carriers (... | 12/08/1992 |
| 5168739 | Upsetting press for reducing the width of rolling stock In an upsetting press for reducing the width of rolling stock, particularly the slab width in hot-rolled wide strip roughing mills with tool carriers, which are disposed on either side of the slab edge, accommodate pressing tools and can be moved in the d... | 12/08/1992 |
| 5119659 | Device for changing stroke of caulking machine A device for changing the stroke of a caulking machine having a table on which is placed an article having a plurality of rivet shanks, and a rivet head forming tool. The table is adapted to be moved back and forth and right and left to bring the rivet sh... | 06/09/1992 |
| 5077999 | Flying upsetting press An upsetting press for reducing the width of rolled material, particularly for reducing the width of slabs in hot wide strip breaking-down trains. The upsetting press includes tool support members arranged on both sides of the slab. The tool support membe... | 01/07/1992 |
| 5046344 | Apparatus for sizing a workpiece A sizing press has a pair of opposed rotatably supported pressing tools for reducing the width of a flat metal slab. Piston cylinder assemblies rotatably oscillate the pressing tools relative to each other. Each pressing tool has first and second slab-con... | 09/10/1991 |
| 5007281 | Plastic working method and apparatus Plastic working method and apparatus are disclosed. The plastic work such as forging is carried out by partial pressing contact of a die with a partial portion of a workpiece. The die is moved in a swinging or circular rocking fashion. The plastic working... | 04/16/1991 |
| 4984443 | Plastic working method and apparatus A plastic working method and apparatus which performs swiveling motion of an upper die mounted on a die holder. A toggle mechanism is provided for power assisting function. The toggle mechanism includes a link and the die holder. Upper and lower end porti... | 01/15/1991 |
| 4982589 | Swiveling type plastic working machine A swiveling type plastic working machine such as a forging machine having a slanted molding die holder which is swivelled about a vertical axis. The molding die holder is fixed with a first molding die confronting a second molding die on which a workpiece... | 01/08/1991 |
| 4941339 | Tool bits and method of shaping Grooves are formed in an insertion end of a working tool, such as a tool bit or a chisel bit by pivoting a grooving tool about a pivot axis extending perpendicularly to the axis of the insertion end. By pivoting the grooving tool about the pivot axis, it ... | 07/17/1990 |
| 4936125 | Plastic working method and apparatus Plastic working method and apparatus are disclosed. The plastic work such as forging is carried out by partial pressing contact of a die with a partial portion of a workpiece. The die is moved in a swinging or circular rocking fashion. The plastic working... | 06/26/1990 |
| 4852382 | Die stamping and punching tool The die stamping and punching tool has a press upper part (18) and a tool plate (16) and a press lower part (13) with a stamping or pressing table (14) and counterpressure plate (15), the lower part being carried by toggle levers (11, 11') which are moved... | 08/01/1989 |
| 4795333 | Rotary forging Rotary forging of a component from powder is accomplished in a single forging operation without any sintering or other processing by firstly pressing the powder in a closed die situation to produce an initial compressed form and then subjecting this compr... | 01/03/1989 |
| 4762062 | Mechanical press This invention relates to a mechanical press comprising a shaft 1 coupled to a drive, which shaft 1 is supported in a yoke 2 at its end opposite to the drive, and a connecting rod 9, the lower end of which is rotatably connected with a slide 11 which is g... | 08/09/1988 |
| 4715210 | Method 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... | 12/29/1987 |
| 4698992 | Wobble-die forging machine In the upper part of the wobble-die forging machine, a guide spigot of the bell-shaped upper die mounting engages, for the production of circular rocking movements, by way of self-aligning roller bearing means into a first eccentric sleeve, which is rotat... | 10/13/1987 |
| 4688312 | Fuel injection valve having an end flange formed by plastic working and its method of manufacture A fuel injection valve comprising a main fuel injection valve body having an inlet opening for fuel and a port for discharge of fuel, a fixed core in the valve body, an electromagnetic coil in the valve body, a movable core attracted magnetically towards ... | 08/25/1987 |
| 4646554 | Process for the manufacture of a rack A process for the manufacture of a rack, specially a rack having variable transmission, wherein the teeth of the rack have in the central area a profile different from that of the outer portions. The rack is formed from a blank in a press having an upper ... | 03/03/1987 |
| 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 |
| 4459840 | Rolling wobble press A rolling wobble press includes a planar surface which is perpendicular to a first axis and a cone which rolls on the planar surface as the cone revolves around the first axis. The axis around which the cone rotates as it rolls intersects the first axis a... | 07/17/1984 |
| 4454978 | Process for improved manufacture of shells for tunnel tubes This invention relates to improved apparatus and process for manufacture of tunnel modules and tunnel sections used to build underwater tunnel tubes. A collapsible fixture is situated to roll up flat steel plate into a circular shell for the tunnel module... | 06/19/1984 |
| 4433736 | Device for avoiding secondary impacts resulting from the bounces of a mass against a target-member A device for preventing secondary impacts of a mass against a target member, as used in particular for generating shear waves in the earth, is provided. The mass is secured at the end of a pivotable rigid arm actuated by driving device, and the driving de... | 02/28/1984 |
| 4430873 | Apparatus for forming grooves having a curved axis and a circular cross-sectional shape The apparatus comprises a support for supporting a blank in which at least one groove having a curved axis and a circular section is to be formed, a ball for forming the groove and carried at one end of a ball holder, a device for displacing the ball hold... | 02/14/1984 |
| 4423614 | Apparatus for shaping articles by rolling In the upper portion of a frame there is mounted a drive for producing oscillating motion, and a pressing device in kinematic connection therewith. A punch is fixed in the lower portion of the pressing device to operate on a workpiece. Below is mounted a ... | 01/03/1984 |
| 4418561 | Apparatus for manufacture of tunnel tubes This invention relates to improved apparatus and process for manufacture of tunnel modules and tunnel sections used to build underwater tunnel tubes. A collapsible fixture is used to roll up a steel plate into a cylindrical shell. Cables wrapped around ch... | 12/06/1983 |
| 4391121 | Orbital tool assembly for forming rivet heads An orbital tool assembly for forming rivet heads has a housing attached to a driven member rotatable upon a first axis, the housing having a bore along a second axis at an acute angle to the first axis. A head having an axis coincident with the second axi... | 07/05/1983 |
