...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7353738 | Cutting device and method for plastic lens A device for cutting a sub-finished assembly (1) of plastic lens (10) includes a cutting member (2) and a holding member (3). The cutting member has a base (20), an upper plate (21), an upper cutter (23) mounted on th... | 04/08/2008 |
| 7234888 | Arrangements for anchoring items to automotive framing components An item such as a passenger assist handle is anchored to an automotive framing component by a mounting stud passing through a hole in the framing component. The mounting stud includes a shaft with a helix at a first end and a threaded portion at a second end. The he... | 06/26/2007 |
| 7162906 | Method and apparatus for removing a carrier part from a carrier A method for removing from a carrier a carrier part with a housing arranged thereon, wherein prior to performing the separating operation a notched line is arranged in the carrier on at least one side of the carrier along at least a part of the length of a separatin... | 01/16/2007 |
| 7127929 | Forging work method A metallic plate member is provided. A first punch is operable to perform a first forging work to mold a first member in the plate member. The first member has a first function. A second punch is operable to perform a second forging work to mold a second member in t... | 10/31/2006 |
| 7062947 | Cutting and folding machine A machine for cutting and edge folding foils includes a cutting/folding station. At the cutting/folding station is a folding form about which the foils may be folded. A feeder feeds a length of foil to the cutting and folding station. At the folding station a cutter... | 06/20/2006 |
| 7028964 | Tubular structure for supporting a product A base pad for supporting and cushioning a product such as a major home appliance. The base pad is made from a tube formed into a desired cross-sectional shape (profile) and folded into a square or rectangular frame-like configuration. V-shaped sections are cut out ... | 04/18/2006 |
| 7013694 | Portable, metal bending apparatus A metal bending apparatus which has a base member and a cross member connected together by two posts extending therebetween. A spring and sleeve are slidably positioned on each post, and a wedge is secured between the sleeves, the wedge includes a pointed end direct... | 03/21/2006 |
| 6968721 | Method of manufacturing blade retainer and manufacturing devices therefor A method of manufacturing a turbine blade retainer using a material cutting device and a material bending device includes steps for suspending a bar stock material between a polyurethane shock absorber and a bore of a cutting jig support, moving the cutting punch do... | 11/29/2005 |
| 6951124 | Method for making elements of a continuously variable transmission belt Notched areas are provided on the outer periphery of a flat plate in the coining process to allow material of said plate flow more easily toward the periphery during the coining process. Use of flat plate provides a more economical way of making elements with accura... | 10/04/2005 |
| 6942440 | Quick-mountable nut A quick-mountable nut, which is capable of at least partially rotation-free axial displacement relative to a threaded bolt (22; 52), includes a nut housing (2; 45), and a springy holding member (4; 49) at least partially located in the nut housi... | 09/13/2005 |
| 6928850 | Method and tooling for z-axis offset of lead frames A method and apparatus for enabling z-axis offset of narrow metal ties straps in lead frames used for packaging integrated circuits to prevent bowing or distortion. Simultaneous offsetting of the tie strap and stress relief mechanisms are provided on both the front ... | 08/16/2005 |
| 6761054 | Method for making a four-sided electrical contact A method and apparatus for the precise manufacture of high quality, four-sided electrical contacts by means of a closely controlled material skiving process. The apparatus is designed so that the starting material from which the four-sided electrical contacts are ma... | 07/13/2004 |
| 6751997 | Stamping press arrangement and method Stamping press arrangement, comprising an impact member (3), a supporting member (4) and a movably arranged cutting tool (5), the impact member (3) being arranged to perform at least one striking movement against the cutting tool (5 | 06/22/2004 |
| 6742373 | Method for manufacturing a V-block of a metal belt type continuously variable transmission A method for manufacturing a V-block of a metal belt type continuously variable transmission is provided. The V-block is formed by punching a V-block press material with a main punch and a counter punch. The V-block press material has a sectional view including an o... | 06/01/2004 |
| 6691413 | Underdrain filtration system with stamped perforations An underdrain filtration system has improved perforation structure, the perforations being positioned to admit the filtrate into a plenum defined by elongated underdrain rib structures of the system. Instead of drilled or laser-cut holes or slits, the sli... | 02/17/2004 |
| 6453716 | Method of blanking elements of belt for continuously variable transmission Elements with heads confronting each other are blanked out of two opposite sides of an elongated metal sheet. The differences between thicknesses of the elements at a measurement point at or near necks of the elements and measurement points at ears of the... | 09/24/2002 |
| 6427329 | Method of forming a hub with blind bore A method for forming a hub having blind bore is provided. The blind bore hub is formed integrally with a solid circular disc by displacing metal radially inward from the upper surface toward the center of the disc to form a hub, and then punching a bore o... | 08/06/2002 |
| 6151784 | Attachment for construction machine An attachment for a construction machine is disclosed The attachment includes: a frame body; a first frame member attached to the frame body; a second frame member attached to the frame body in opposing relation with the first frame member. The first fram... | 11/28/2000 |
| 5592848 | Method of simultaneously forming a pair of sheet metal structural members A method of forming a pair of sheet metal structural members simultaneously from a single elongated strip of sheet metal defining parallel side edges and comprising the steps of severing the strip sheet metal along a predetermined zig-zag separation path,... | 01/14/1997 |
| 5467630 | Method for working terminal part of material for vertical suspension type surface treatment A method for working terminal parts of materials subjected to vertical suspension type surface treatment thereby forming in the terminal parts such hook engaging parts as to be engaged with nipping devices of a carrier bar serving to convey the materials ... | 11/21/1995 |
| 5458158 | Lead cutting apparatus and an anticorrosive coat structure of lead A lead cutting apparatus for cutting the leads or pins of electric and electronic devices into a predetermined length in the manufacturing process including inclined pressing surface(s) and cutting edge(s) for cutting the leads, which are covered with an ... | 10/17/1995 |
| 5099671 | Combination braking, punching and shearing apparatus for forming sheet metal strips Apparatus is provided for forming strips of sheet metal into supports or hangers for ducts and the like. The apparatus comprises a reel for holding a coil of sheet metal for being formed into strips, a strip feeder for extracting lengths of sheet metal fr... | 03/31/1992 |
| 4956987 | Rotary cutter for cutting a continuous corrugated strip A high speed rotary cutter includes a toothed counterwheel which has plural radial slots extending in the axial directions. First cutting blades are slidably received in the radial slots, each of which has a first cutting edge on its outer end. The first ... | 09/18/1990 |
| 4798077 | Method for producing a family of forged ring rolling preforms and forging die therefor A method (FIGS. 4 and 4a) for making ring rolling preforms (102) of substantially toroidal shape for ring rolling (84) into substantially rectangular cross-sectional wall shaped forging blank rings (104) to be precision forged (86) into near net ring gear... | 01/17/1989 |
| 4790168 | Pipe crimping and cutting An apparatus for cutting and crimping pipe having a first jaw and a second jaw between which a pipe is placed to be crimped and/or cut. At least one of the first jaw and the second jaw is mounted for relative reciprocating movement toward and away from th... | 12/13/1988 |
| 4660401 | Apparatus for producing bearings in the form of press worked bush An useful method of producing a lot of bearings in the form of a press worked bush is initiated with production of blanks having four corner edges chamfered. In the notch forming and cutting die section comprising upper and lower die halves a strip of met... | 04/28/1987 |
| 4625535 | Method of forming truss plates A method for quickly manufacturing a connector plate of varying design strength in a minimum size plate for joining wooden members which approximates the ideal connector plate for that particular design, thereby making it unnecessary to use plates of grea... | 12/02/1986 |
| 4571968 | Steel frame shearing apparatus A pair of side plates are provided in opposing and spaced relationship, a pair of jaw members are pivoted to a pair of main shafts extending between said side plates, a pair of opposing crushing blades are mounted on the leading end side of said jaw membe... | 02/25/1986 |
| 4347724 | Method and knives for shearing metal bar A metal bar undergoing hot rolling is sheared by a pair of shear knives which form a rounded wedge shape at a downstream end of the bar to minimize split ends and cobbles during the rolling operation. The two knives have respective, mating male and female... | 09/07/1982 |
| 4292718 | Method of producing metal bearings A method of producing metal bearings first by forming grooves substantially V-shaped in cross section on opposite surfaces of a composite plate in the form of a web comprising a bearing alloy layer and a backing metal layer and then by cutting the composi... | 10/06/1981 |
| 4033388 | Bending and cutting tool A portable scissor-like tool is provided that will bend and cut a workpiece t a predetermined length, such as the electrical leads extending from a flat-pack type of integrated module in sequential operations without the need for changing tools. Adjustable... | 07/05/1977 |
| 4023393 | Eccentric press A press for forming articles such as sphere-like objects and the like from workpieces includes a frame having two fixed mating dies mounted thereon and a crankshaft rotatably mounted on said frame, the crankshaft having crank arms actuating movable dies. ... | 05/17/1977 |
| 3986470 | Method and means for straight line manufacture of sheet metal duct elements The method of fabricating the sheet metal duct units of the present invention comprises cutting a plurality of spaced lines of notches in an elongated strip of sheet metal, each of the lines being transverse to the longitudinal axis of the strip. The stri... | 10/19/1976 |
| 3968673 | Method and apparatus for producing steel box toes to be used in safety shoes A flat strip of metal, preferably coiled upon itself, is fed into a draw press and subjected to pressure to produce a generally bowl-shaped workpiece having irregular outer edges within which is defined a pair of mirror-imaged toe cap parts. The toe cap p... | 07/13/1976 |