Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7240532 | Hybrid metal forming system A hybrid metal forming system includes a die cavity defined by a first die and a second die and a press adapted to apply a static pressure over the first die to deform a workpiece against the second die. The hybrid forming system also includes a dynamic loading syst... | 07/10/2007 |
| 7162910 | Hybrid metal forming system and method A hybrid metal forming system includes a die cavity defined by a first die and a second die and a press adapted to apply a static pressure over the first die to deform a workpiece against the second die. The hybrid forming system also includes a dynamic loading syst... | 01/16/2007 |
| 7155951 | Mill variation control apparatus and method Apparatus and method for reducing vibration in a mill stand. The apparatus comprises a roll (4) positioned upstream or downstream of the mill stand (1) and over which the strip material (2) being rolled is passed. The vibration control apparatus... | 01/02/2007 |
| 6932876 | Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces Metallic workpieces of diverse shapes having work surfaces which are deformed at the surface and adjacent sub-surface layers by surface impact from ultrasonic transducers employing freely axially moving impacting elements propelled and energized by a transducer osci... | 08/23/2005 |
| 6862913 | Device and method for mechanically joining sheet metal The present invention is directed to a method and a device for clinching metal sheets disposed one over the other in planar fashion. A joining tool, composed of a punch and a die having an anvil, is used to jointly displace metal sheets, profiles, or multi-sheet con... | 03/08/2005 |
| 6755068 | Ironing-deep drawing process A simultaneous two-sided iron-deep drawing process for producing vessels such as metal cans. After being used, the cans can easily be squashed. A difference in height between the inner die and the outer die or the profile radii of the two dies are varied so as to ch... | 06/29/2004 |
| 6665926 | Method and apparatus for improved valve seating of a fuel injector by coining and a valve made thereby A method for making a valve assembly is disclosed. The method includes providing a first work piece having a longitudinal axis and a first end and providing a second work piece having a surface. The method also includes disposing the first work piece and ... | 12/23/2003 |
| 6578400 | Internal high pressure forming method for a workpiece A method and an apparatus are provided for internal high-pressure forming of a workpiece in a closed internal high-pressure forming die. The workpiece is expanded owing to the internal high fluid pressure exerted by a pressure generator and coming to rest... | 06/17/2003 |
| 6543136 | Method for improved valve seating of a fuel injector by coining and a valve made thereby A method for making a valve assembly is disclosed. The method includes providing a first work piece having a longitudinal axis and a first end and providing a second work piece having a surface. The method also includes disposing the first work piece and ... | 04/08/2003 |
| 6343495 | Apparatus for surface treatment by impact The invention relates to apparatus for surface treatment by impact, the apparatus comprising a vibrating surface and at least one projectile suitable for being projected towards the surface to be treated by said vibrating surface. The apparatus includes r... | 02/05/2002 |
| 6089065 | Process and arrangement for the cold forming of hollow workpieces A process and device for manufacturing cylindrical hollow bodies out of a blank through cold forming using roll cylinders is provided. The axes of the roll cylinders in this process are essentially adjusted parallel to the axis of the workpiece and execut... | 07/18/2000 |
| 5699693 | Widthwise compressing machine and method using vibrations to reduce material width A widthwise-compressing machine for applying a compression force through press tools to a material to reduce a width of the material while applying vibrations to said material to forcibly vibrate said material has a compression unit for producing a compre... | 12/23/1997 |
| 5509286 | Method and apparatus for surface treating and prestressing the inside wall of a cavity The present invention relates to a method and apparatus for surface treating and putting under compression prestress the inside wall of a cavity, in particular a cylindrical cavity of circular section. The apparatus comprises a bulb-shaped vibrator provid... | 04/23/1996 |
| 5485739 | Vibrating pipe straightener A straightener for removing dents from an installed section of pipe. The inventive device includes a tapered body positionable within the pipe. A vibrating assembly within the body removes dents from the pipe as the device is pulled therethrough.... | 01/23/1996 |
| 5413650 | Ductile ultra-high strength aluminium alloy components The mechanical properties of aluminium alloy extrusion in a specified transverse direction are improved by upsetting the extrusion billet in at least one direction chosen with reference to the specified transverse direction. For example, the extrusion bil... | 05/09/1995 |
| 5249450 | Probehead for ultrasonic forging A wirebond probe head is modified for use in forming raised portions from material. The modified head includes a main portion and a sleeve, with the sleeve functioning as a shroud to reduce the tendency of forged material to exude from the periphery of th... | 10/05/1993 |
| 5231863 | Mandrel loading method and apparatus in a thermal sizing-annealing process To facilitate safe loading of a thermal sizing mandrel in an elongated channel of open rectangular cross section, a corner rod die is first lowered into a fixture, and then a channel is lowered into the fixture to a vertical position surrounding the die. ... | 08/03/1993 |
| 5095733 | Maintaining a preferred vibration mode in an annular article A forming die of a kind having a top surface (38) a bottom surface, a peripheral side surface (39) connecting the bottom surface to the top surface (38) and including a receptor area (36) for receiving vibratory force, and an annular work surface (32) def... | 03/17/1992 |
| 5036692 | Method for bending pipes and apparatus therefor A method and an apparatus for bending pipes by clamping one end of the pipe between a formed roll and a rotary base and by turning the rotary base so that the pipe may be bent along the outer periphery of the formed roll. A mandrel supported by a mandrel ... | 08/06/1991 |
| 5007268 | Method and device for edge-finishing An edge-finishing device comprises a drive unit (L), a holder (M) and a notched tip (N). The tip combines a number of geometric features known as land radius (Y), flank faces (K), flank radii (I) and root radius (J). Typical useage of the device requires ... | 04/16/1991 |
| 4854149 | Reducing the diameter of tubular bodies A method and apparatus for reducing the cross-section of a terminal portion of a tubular body said apparatus comprising an external die which defines a convergent work surface therein of like shape to the exterior of the reduced cross-section to be produc... | 08/08/1989 |
| 4771627 | Stress-coining apparatus and method A stress coining tool for fatigue life extension of the wall of an aperture in a metallic structural member, in the form of a rigid elongated member having a plurality of annular olive-like protuberances of a progressively larger diameter from one end of ... | 09/20/1988 |
| 4689981 | Draw-bending method Apparatus for draw-bending metal tubes and other elongated workpieces of hollow section, in which a mandrel, supported on a bar within the tube, bears against the inner wall of the tube in the region of the bend and helps to prevent the tube section from ... | 09/01/1987 |
| 4651550 | Method of decreasing width of thin slab and apparatus therefor For decreasing the width of a thin slab: a turning roll contacts the thin slab being conveyed at a certain contact angle to curve the thin slab; a tension applying device disposed in front and at the back of the turning roll, applys a tension to the thin ... | 03/24/1987 |
| 4583966 | Method of filling calender/embosser rolls using vibrations A method and mechanism for assembling paper machine filled rolls including a lower support with a cylinder and a piston for receiving a roll mandrel, vertically extending bolts for supporting a plate to press on relatively soft disks slid over the mandrel... | 04/22/1986 |
| 4453392 | Method of hardening shaped surfaces by plastic deformation A method of hardening by plastic deformation surfaces of articles shaped as continuous helical coils and having essentially round cross-section by means of deforming elements wherein said deforming elements are arranged at the opposite sides of said artic... | 06/12/1984 |
