"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7797976 | Method for the production of a flange on a metal blank, and transmission part A method of forming a flange on a circular metal blank (1) has the following steps: By means of at least one pressure roller (3), a hub-type and/or conical structure is formed on the circular metal blank, and ... | 09/21/2010 |
| 7552610 | Thread forming method, thread forming device, and thread forming tool A thread forming device 10a is provided with a thread forming tool 32 for forming a thread portion 14 at a frame 12, a first motor 38 for controlling to rotate the thread forming tool 32, and a second motor 40 ... | 06/30/2009 |
| 7478548 | Reaming apparatus Tubing reaming apparatus comprises a housing adapted to be mounted to tubing to be reamed. The housing provides mounting for a reamer shaft adapted to mount a cutter within the tubing. The housing also provides mounting for a drive arrangement. A gear arrangement is... | 01/20/2009 |
| 7441433 | Tool for forming threaded hole in a hydroformed part A tool forms a threaded hole in a hydroformed part while the part remains in a hydroforming die cavity and under pressure. The tool has a hole-piercing end portion adapted on advancement of the tool to pierce and form a hole in the part and an extruding portion adap... | 10/28/2008 |
| 7353681 | Roll embossing of discrete features A cold rolling process for impressing a pattern on a surface of a sheet metal article involves passing the sheet article through a pair of rolls and engaging a patterning feature with isolated areas of a surface of the sheet article, at a localized pressure to plast... | 04/08/2008 |
| 7284406 | Tube end forming and coping method and apparatus Apparatus for both forming and coping the end of a tube. The tube is gripped such that it is aligned with a movable first tool assembly that is positioned, in a first operation, adjacent said tube end. The tool assembly is then controlled in a manner such that the t... | 10/23/2007 |
| 7284325 | Retractable finning tool and method of using An improved tool and method for enhancing the surface of a heat transfer tube are provided. The tool, which can be easily added to existing manufacturing equipment, includes cutting bits that may be retracted with a housing. The cutting bits include a cutting edge t... | 10/23/2007 |
| 7279140 | Catalytic converter with integral oxygen sensor An exhaust system comprising a catalytic converter unit, a bushing element provided in a shell wall of the catalytic converter unit, and an oxygen sensor positioned within exhaust flow of the catalytic converter unit and extending through the bushing element and hav... | 10/09/2007 |
| 7249482 | Electrode texturing tool and method of use thereof An article for texturing an electrode having a tip hardness and a tip contour is disclosed. The article includes a plate having an upper surface and a lower surface, and an indentation in at least one of the upper and the lower surface. The indentation includes a te... | 07/31/2007 |
| 7181945 | Semi-manufacture pulley forming apparatus 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 disposed around an upper end of a first spindle is rotated with the first... | 02/27/2007 |
| 7165579 | Pipeline repair system and method of installation A pipeline repair system includes a sleeve adapted to permanently enclose an outer surface of a longitudinal section of a pipeline having a defect. The sleeve includes two or more longitudinal segments of a cylinder joined at the longitudinal edges to form a sleeve ... | 01/23/2007 |
| 7159428 | Pre-beading method and apparatus A pre-beading apparatus for fashioning a cylindrical includes a housing have a work surface and an aperture formed in the work surface, where the aperture is capable of accommodating the cylindrical workpiece. A rotatable head assembly is concentrically aligned with... | 01/09/2007 |
| 7137762 | Device for tapping conduits A device for tapping a conduit, which conducts a flowing fluid, comprises a housing, which has a principal part, a fixing part running flush with the principal part for fixing to the conduit and an outlet part for discharging fluid from the tapped conduit. A rotatin... | 11/21/2006 |
| 7134303 | Device for socket-deforming a tube end and for adjusting its length A device (1) for socket-deforming an end of a tube, for example a tube of a heat exchanger, and for cutting that tube to a desired length, the cutting taking place at the end to be deformed. The The device (1) comprises a deformation and cutting member... | 11/14/2006 |
| 7124610 | Method for producing a torsional vibration damper housing, especially a housing for a viscosity torsional vibration damper The invention relates to a method for producing a torsional vibration damper housing, especially the housing for a viscosity torsional vibration damper, whereby the damper housing is manufactured from an existing plate circular blank and the shaping of the damper ho... | 10/24/2006 |
| 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 |
| 7021101 | Method and apparatus for manufacturing a battery terminal with undercut rings A method and apparatus utilizing a radial rolling process to cold form rings on a lead battery terminal with undercuts or overhangs to improve the sealing properties of the rings. The apparatus includes a fixture configured to securely position the battery terminal ... | 04/04/2006 |
| 7013594 | Pivoting split shot attachment and removal tool A fishing tool is designed to attach and remove split shot to/from fishing line. The tool comprises a top member, which is a flexible bowed strip of spring metal, pivotally connected to a base member, which is a rigid strip of sheet metal. The top member comprises a... | 03/21/2006 |
| 7010880 | Split shot attachment and removal tool A fishing tool designed to attach and remove split shot to/from fishing line is disclosed. The tool comprises a top member, which is a flexible bowed strip of spring metal, pivotally connected to a base member, which is a rigid strip of sheet metal. Split shot is at... | 03/14/2006 |
| 7003995 | Hydrotapping power unit A hydrotapping power unit is disclosed that is operable to hold a hydrotapping tool in a home position adjacent a part while the latter is being hydroformed in a die cavity, to then advance the tool to pierce a hole in the hydroformed part while the part remains in ... | 02/28/2006 |
| 7003997 | Method and apparatus to reduce deformation in sheets cut by cutting tool The present invention is a method for reducing the deformation along a cut contour edge (26) of a sheet (2) caused by the cutting process whereby sheet material (4) protrudes above the top surface of the sheet being cut. One group of embodiments... | 02/28/2006 |
| 7003998 | Apparatus for forming a flange at the end of a conduit Apparatus for shaping a conduit to form a radially outwardly projecting flange at an end thereof includes a holding fixture, a collar surrounding the conduit disposed in an opening in the holding fixture, rotation imparting structure engaging the collar for simultan... | 02/28/2006 |
| 6959575 | Kurling tool A method and apparatus for knurling a workpiece in which the knurl pattern includes grooves of at least two different configurations. The apparatus includes a knurl wheel holder that allows angular rotation of the knurl wheel about the holder longitudinal axis while... | 11/01/2005 |
| 6941651 | Pulley and bearing assembly and a method and apparatus for inserting and fastening a bearing within a pulley A pulley and bearing assembly and a method of inserting and fastening a bearing within a pulley having an axially extending cylindrical hub portion with an axial bore forming an inner periphery of the pulley and a pair of opposite ends, an annular belt groove portio... | 09/13/2005 |
| 6923362 | Integral channels in metal components and fabrication thereof An internal channel in a metal body for use in applications where internal fluid flow within a metal body is desired, as in a heat exchanger. The internal channel is formed in the metal body by frictionally stirring with a pin plunged into the metal body, and traver... | 08/02/2005 |
| 6921236 | Tool for repairing damaged threads A tool for rethreading a damaged threaded object having a solid body with at least one through bore including at least one cutting tooth. A slot intersects the through bore, allowing relief for shavings removed from the object as it is rethreaded. The tool can be ad... | 07/26/2005 |
| 6848438 | Internal combustion engine exhaust device and method for making same An internal combustion engine exhaust device. The device includes a conduit element through which exhaust gases flow. The conduit element includes a housing for mounting a measurement sensor such as an oxygen probe. The housing is formed by a hole extended by an ins... | 02/01/2005 |
| 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 |
| 6647839 | Method of forming an integral tubular projection in a work by spinning and a product produced by the same A method of forming an integral tubular projection in a disk-shaped work by spinning is provided. In the method, h=0.1 to 0.5t, d=0.25 to 0.94D, T=0.5 to 7h, and V=0.029 to 0.234πD2 h where h is a depth by which a forming roller cuts int... | 11/18/2003 |
| 6615632 | Parting tool A parting tool for continuous chipless separation of identical parts from a rotation-symmetric workpiece, includes a cutting roller having a main body advancing a workpiece in a transport direction from an entry side to an exit side. The main body has a s... | 09/09/2003 |
| 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 |
| 6584822 | Method for working a workpiece The invention relates to a process for working a workpiece held between a counterholder and a guide by a clamping force by forming a profile, e.g. precision toothing, in a surface of the workpiece by means of a forming element, the forming element being g... | 07/01/2003 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6427508 | Automated collar-forming drill mechanism An automated collar-forming drill mechanism, having the bottom end of its rotatable drive shaft (1) fitted with a tool head (2), which is driven axially back and forth by means of a piston-cylinder assembly (5-9), the drive shaft (1) extending through its... | 08/06/2002 |
| 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 |
| 6378184 | Apparatus and method for manufacturing ducts The invention provides a machine and methods for automated manufacture of tapered adjustable ducts, and particularly tapered adjustable take offs. A tube of material is cut into gores of predetermined configuration, coupling beads are formed in the gores ... | 04/30/2002 |
| 6367300 | Sprocket with thin body and grooved teeth A sprocket includes a body, and teeth formed on the peripheral edge of the body. The teeth have a thickness greater than that of the body. This design enables the use of the existing chain and brings about a reduction in the weight of the overall sprocket... | 04/09/2002 |