Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7854156 | Closing device and closing method A closing device 100 which presses a die 2 against a rotating pipe body 1 such that an open end portion of the pipe body 1 is plastically closed by the die 2 includes a cored bar 3 inserted into the pipe body 1 to clo... | 12/21/2010 |
| 7516635 | Method and forming machine for deforming a workpiece The invention relates to a method and a forming machine for deforming a workpiece, such as a metal cylinder or plate (3), by means of a tool, in particular one or more forming rollers (5), wherein the workpiece and/or the tool are rotated about an axis... | 04/14/2009 |
| 7487656 | Method of spinning multiple parts A method of spinning multiple parts comprising attaching two blanks to an intermediate mandrel, loading the intermediate mandrel and blanks into the spinning machine by clamping the intermediate mandrel and the blanks between the spinning machine tailstock and the h... | 02/10/2009 |
| 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 |
| 7316142 | Metal spin forming head The present metal spin forming head includes two sets of rollers, with each set having a series of individual metal working rollers therein. The rollers of each set are circumferentially spaced evenly about the head, with each of the rollers of the second set being ... | 01/08/2008 |
| 7299670 | Method and apparatus for producing cylindrical components having bent portions A preparatory molding roll 4 having a convex push surface 41 is pushed to an outer peripheral surface of a work 1A while the work 1A is chucked by a pair of molds 2 and 3 and is rotated by applying axial propelling force, to... | 11/27/2007 |
| 7278285 | Method and device for producing tubular formed body A forming device having a rotating frame (1) and a forming blade (2) movable in the axial and radial directions of the rotating frame. One side-edge portion of a tubular blank (B) is fixed to a predetermined position of the rotating frame (1), a... | 10/09/2007 |
| 7251890 | Method for producing wheel pans A method for producing a wheel pan includes cold-rolling a rectangular metal strip of a given uniform thickness by conical rolls into a semicircular ring, such that the thickness reduction on the outer edge of the curved strip is at least 20%, and the circumference ... | 08/07/2007 |
| 7243517 | Method and device for deforming a workpiece made of a material having an exponential tensile stress-strain behavior into a thin-walled, hollow shell The present invention relates, among other things, to a method for forming a workpiece (240) of a material having an exponential tensile stress-strain behavior into a thin-walled, hollow shell (243). In this method, the workpiece ... | 07/17/2007 |
| 7191626 | Method for producing an inner contour with an internal arbor acting on the inside wall of a workpiece In the production of an internal contour with an internal arbor acting on the inner wall of a cup-shaped or annular rotationally symmetrical workpiece, expansion and length change of the workpiece are avoided during cold forming. Thus, gear components with internal ... | 03/20/2007 |
| 7174759 | Forming machine and method for deforming a hollow workpiece The invention relates to a forming machine at least provided with a clamping device for clamping a hollow workpiece having at least one open end and a first forming tool which can be placed into contact with the outer surface of the workpiece and with which the work... | 02/13/2007 |
| 7143619 | Spin-forming method, spin-forming apparatus, and catalytic converter While a material pipe and a roller are revolved relative to each other with a predetermined radius, the material pipe and the roller are moved relative to each other in the direction of progress of forming by eccentrically moving the center axis of the material pipe... | 12/05/2006 |
| 7131304 | Spinning method and apparatus A spinning method which makes it possible to control the pressing force of a roller tool with satisfactorily high responsiveness and have the roller tool press work following the contour of a forming die even if the die may have its radial length vary at a high spee... | 11/07/2006 |
| 7127926 | Circular and oval flanged rings for ducting and method of making A method of making Circular and Oval Flanged Rings, for the connection of thin walled circular and oval ducting, including Circular and Oval Flanged Rings having a Sheet Metal and Air Conditioning Contractors National Association (SMACNA) standard T24 Profile. Thin ... | 10/31/2006 |
| 7124609 | Spin forming of HVAC duct reducers Method of a spin forming conical fittings for HVAC systems from 10 to 26-gauge steel material. A flat pattern is cut, stamped or otherwise formed from flat sheet stock or roll stock. The pattern is rolled or otherwise formed into a frustoconical shape. The workpiece... | 10/24/2006 |
| 7121128 | Method of manufacturing elliptic deep-drawn products A method of manufacturing an elliptic deep-drawn product including a first step of providing an intermediate product and a second step of providing an end product. In the first step, a rotary forming die is used to form in a blank a substantially round formed portio... | 10/17/2006 |
| 7082796 | Circular and oval flanged rings for ducting and method of making A method of making Circular and Oval Flanged Rings, for the connection of thin walled circular and oval ducting, including Circular and Oval Flanged Rings having a Sheet Metal and Air Conditioning Contractors National Association (SMACNA) standard T24 Profile. Thin ... | 08/01/2006 |
| 7055243 | Crankshaft damper with integral pulse ring and method The invention comprises a crankshaft damper having an integral pulse ring. The crankshaft damper comprises an inner hub and outer pulley with an elastomeric connecting member between each. The elastomeric ring dampens a crankshaft vibration. The integral pulse ring ... | 06/06/2006 |
| 7029037 | Apparatus for connecting and sealing duct sections An apparatus (10) for connecting and sealing duct sections is adapted for connecting and sealing round ducts (100), round oval ducts (200), and other commonly used ducts. The apparatus includes first and second connectors. Each connector include... | 04/18/2006 |
| 6983632 | Method and apparatus for spinning to a constant length An apparatus and process is disclosed for spinning circumferential articles with constant length end surfaces. The article is first spun to define the circumferential surface, and a mandrel is then introduced, whereby the mandrel has a shoulder positionable adjacent... | 01/10/2006 |
| 6978649 | Method and apparatus for producing a vehicle wheel rim This invention relates an improved wheel rim roll forming apparatus for producing a vehicle wheel rim. The wheel rim roll forming apparatus includes an inner member adapted to support a flared wheel rim preform thereon, an outer member supported relative to the inne... | 12/27/2005 |
| 6959479 | Method of manufacturing a hollow shaft having a flange at one end thereof A method is required in which a plate-like flange member may be firmly secured at the front end of a hollow shaft member through a plastic working treatment by virtue of caulking combination, so as to manufacture a hollow shaft having a flange at one end thereof. In... | 11/01/2005 |
| 6955283 | Adaptable mandrel for spin forming There is provided a mandrel for spin forming that has a backing plate with removably attached mandrel portions and mandrel spacers, such that the mandrel is adaptable to numerous configurations. The various configurations of the mandrel are used to provide different... | 10/18/2005 |
| 6865808 | Method of forming a pulley A pulley is made by fixing an edge of an opening of a plate by using a first upper mandrel ring installed at a lower end of a first supporting pin of a first forming device. A supporting block is disposed around an upper end of a first spindle and is rotated with th... | 03/15/2005 |
| 6694791 | Method of spin forming and part made thereof A method of cold forming a capped cylinder with geometrically spaced torsional engagement radial projections on an exterior side of the capped cylinder is provided. The method includes the step of striking a generally flat blank to form a drawn part havin... | 02/24/2004 |
| 6688149 | Component with a hub, and a non-cutting production method therefor A method for the non-cutting production of a hub with a stepped hole, the method steps comprising: providing a metal round blank having a throughhole; providing a patch block in the throughhole and having a portion of the patch block spaced at a distance ... | 02/10/2004 |
| 6640438 | Process and machine for uniting rotatable machine components A hub (2) includes a spindle (14) which projects through a housing (4) and rotates relative to the housing (4) on a bearing (6) that is located between the spindle (14) and the housing (4). The bearing (6) has two sets of raceways (28,40) that are oblique... | 11/04/2003 |
| 6622377 | Wheel bearing with separable inner race processing feature A wheel bearing assembly for supporting a wheel and apportioned vehicle mass is provided. The assembly includes a spindle member defining a rotational axis with a flange for attaching a wheel and a hub assembly. A bearing assembly has inner and outer bear... | 09/23/2003 |
| 6598443 | Blind bore hub and method of forming A method for forming a hub having blind bore with an elevated blind bore face is provided. The blind bore face is elevated relative to the upper surface of an annular disc from which the hub is integrally formed, by first displacing metal radially inward ... | 07/29/2003 |
| 6572447 | Method of forming a base body for a diamond bit A method of forming a base body for a diamond bit having a tubular carrier body (2, 12) with a bottom (4), and a shank (1, 11) projecting from the bottom (1), with the carrier body (2, 12) and the bottom being produced by a spinning process.... | 06/03/2003 |
| 6536253 | Slotting method, slotting device, and method of manufacturing metal sheet brake shoe by slotting The present invention provides a slotting method in which, during production of a metal sheet V-pulley or the like, slitting can be correctly easily performed at an arbitrary position in the thickness direction of an outer peripheral face of a blank. A bl... | 03/25/2003 |
| 6494072 | Method of and device for forming a clutch gear toothing on gearwheels for change speed gears A method of manufacturing a gearwheel (10) by clutch gear tooth forming with an axial undercut and a roof-shaped entry geometry consists in causing the gearwheel blank to perform a rotating movement and to cause profiled shaping tools in the form of rolls... | 12/17/2002 |
| 6484547 | Sheet metal member and method of manufacturing the member In the present invention, a thin and disc-shaped blank made of steel plate is used. The present invention provides a method of manufacturing a sheet metal member comprising a circular base plate, and an annular projection bulged from at least one surface ... | 11/26/2002 |
| 6484401 | Gear part and method for forming a gear part A gear part and method is provided for forming a gear part, in which a circular blank-like workpiece is fixed in a flow-forming machine in a radially inner area, the circular blank-like workpiece is rotated, at least one roller is substantially radially m... | 11/26/2002 |
| 6463781 | System for drawing outer cylinder of rubber bush A system for drawing an outer cylinder of a rubber bush comprising an inner cylinder serving as a shaft member, the outer cylinder disposed around the inner cylinder and a rubber elastic body interposed between the inner cylinder and the outer cylinder, c... | 10/15/2002 |
| 6434991 | Flow-forming method and apparatus A method for flow-forming a part having an inner collar and an outer collar surrounding the inner collar, including clamping a workpiece having a radial section to a spinning tool in a flow-forming machine, splitting a first material off the radial sectio... | 08/20/2002 |
| 6360143 | Error recovery methods for controlling robotic systems A method of controlling a dispensing system, having a robot that moves along a motion segment and applies a material to a workpiece, automatically determines a backup distance for the robot after an error has occurred during the dispensing of a first port... | 03/19/2002 |
| 6348020 | Internal spun hub and method of making same A hub having a bore, in accordance with the present invention, is spun-roll formed of a portion of an annular sheet metal disc. The hub is formed by radially displacing a portion of the annular sheet disc outward from the bore. The so formed hub that is i... | 02/19/2002 |
| 6289706 | Circular and oval flanged rings for connecting ducting and method of making A method of making Circular and Oval Flanged Rings, for the connection of thin walled circular and oval ducting, including Circular and Oval Flanged Rings having a Sheet Metal and Air Conditioning Contractors National Association (SMACNA) standard T24 Pro... | 09/18/2001 |
| 6254256 | Light-scattering reflector A reflector for an illumination source manufactured by a spin chuck having an edge surface. The reflector includes a body having a contiguous portion composed of an endless outer surface and a reflective endless inner surface. The body further includes an... | 07/03/2001 |
