Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7952052 | Welding torch maintenance center A welding torch maintenance center that uses a microcontroller to control the operation, to configure the maintenance center, to repeat the reaming process for excessive spatter deposit inside the nozzle, to spray the nozzle with anti-spatter fluid, to cut the weldi... | 05/31/2011 |
| 7732734 | Metal forming apparatus and process with resistance heating An apparatus for forming a metal article includes a station which receives and supports a workpiece. The station has a source of electrical current and a source of a fluid. The station further includes a first and a second electrode clamp. Each clamp is in electrica... | 06/08/2010 |
| 7442899 | Clamping device A clamping device or system (1) is provided for body parts (8, 9), which have a component clamping contour (11), especially a component flange. The clamping device or system (1) has one or more clamping devices (2, 3), which have e... | 10/28/2008 |
| 7429711 | Metal forming apparatus and process with resistance heating An apparatus for forming a metal article includes a station which receives and supports a workpiece. The station has a source of electrical current and a source of a fluid. The station further includes a first and a second electrode clamp. Each clamp is in electrica... | 09/30/2008 |
| 7337648 | Clamp and repair tool A tool for gripping, clamping or holding an object, wherein the tool has a handle portion, a linkage portion and a working portion, and wherein the working portion includes two workpiece contacting surfaces, at least one of the surfaces shaped to generally conform t... | 03/04/2008 |
| 7332689 | Tacking method and apparatus An apparatus for tacking a multi-lumen tubular assembly together comprises a laser, an optical member and a placement tray for retaining the tubular assembly. A portion of the optical member defines a window that is substantially transparent to laser energy emitted ... | 02/19/2008 |
| 7312417 | Laser beam seam welding with prior laser spot welding During welding with high output power, the gaps between the pieces being joined may not exceed a maximal gap width. A process for laser beam welding is provided, which on the one hand ensures maintaining (not exceeding) a maximal gap width between the sheets and on ... | 12/25/2007 |
| 7262385 | Material processing device A device for material processing, such as welding, joining, cutting, inspecting and the like, includes an energy beam source and one or more energy beam transfer devices. The one or more transfer devices may direct an energy beam at one or more predetermined locatio... | 08/28/2007 |
| 7156278 | Auxiliary soldering tool An auxiliary soldering tool includes a first jaw plate having a first holding portion and a first holding portion, a second jaw plate having a second holding portion and a second holding portion, and two elastic press plates each respectively rested on the first hol... | 01/02/2007 |
| 7109436 | Laser shock peening target A laser target includes a shank having a first wedge converging from a step to a distal end of the wedge. A complementary second wedge is mounted on the step and converges with the first wedge. The two wedges have respective target apertures aligned with each other ... | 09/19/2006 |
| 6783053 | Clamping mechanism for clamping sheet metal workpieces A clamping mechanism for locating sheet metal components includes a carrier plate and a clamping jaw swivel-mounted in relation to the carrier plate, the sheet metal components being clamped in contact areas between the carrier plate and the clamping jaw. The carrie... | 08/31/2004 |
| 6590180 | Laser welding system The laser welding system including a welding frame for receiving a first steel plate to be welded thereupon, at least one first clamping member to be installed above the welding frame, for fixing the first steel plate received on the welding frame, at lea... | 07/08/2003 |
| 6525294 | Device for clamping and welding pieces of sheet metal The invention relates to a device for clamping and welding pieces of sheet metal (13, 14) which are placed against one another, preferably for use in the area of automobile manufacturing. According to the invention, a bracket (3) is fastened to a mounting... | 02/25/2003 |
| 6489593 | Locating and locking unit for welding sheet metal parts of a motor-vehicle body A locating and locking unit for sheet metal parts which are to be assembled by electric spot-welding on a motor-vehicle body, comprising a base platform, for receiving the trolley of a positioning frame equipped with locating and locking devices for the p... | 12/03/2002 |
| 6486436 | Workpiece clamping system A magnetic clamping system and method for locating and holding a workpiece (6), in particular a non-magnetic workpiece (6) within a machine tool (2) and specifically a numerically laser cutting or drilling machine tool. The system comprising at least one ... | 11/26/2002 |
| 6479783 | Electric motor device for powering a tool clamp An electric motor device for powering a tool clamp, for example a resistance welding clamp, of the type comprising a casing of an electric motor 4 the shaft of which is connected to the clamp, to control the electrodes for opening, closing and clamping th... | 11/12/2002 |
| 6460863 | Welding fixture A fixture for receiving and retaining a fitting having a through bore and an end wall. The fixture comprises a body for receiving the fitting, and an actuator for engaging the fitting at the intersection of the through bore and the end wall such that the ... | 10/08/2002 |
| 6398101 | Bi-directional compliant precision linear slide A bi-directional compliant precision linear slide apparatus having a base that supports two side bearing blocks, side rails and an internal air cylinder. The bearing blocks allow for a set of side rails to be moved in a first direction via the introductio... | 06/04/2002 |
| 6355899 | Tube clamping assembly A tube clamping assembly comprising a first portion having a base and a clamping device carried on the base, and a second portion having a base and a clamping device carried on the base. The first and second portions are coupled to each other such that th... | 03/12/2002 |
| 6335508 | Pipe handling system for laser and other pipe treating processes The invention provides a pipe handling system which can transform a flat XY cutting system into a pipe cutting system which maintains very accurate pipe positions for laser, plasma, mechanical or other material processes, regardless of distortions in the ... | 01/01/2002 |
| 6293454 | Installation for positioning and welding body parts of different types of motor vehicles An installation for positioning and welding body parts of different types of motor vehicles. The installation includes a mounting frame (5) which is guided on a conveyor line and which has receiving elements for at least some vehicle body parts. Positioni... | 09/25/2001 |
| 6288355 | Seam welding method and apparatus To weld a workpiece rounded from plane metal sheet on a seam welding machine, the workpiece is introduced into a preform (7) whose internal shape is approximately the same as the workpiece. Stops (11, 12, 14) are used to fix the workpiece in place in the ... | 09/11/2001 |
| 6222151 | Low profile welding fixture A fixture for holding two members in alignment and in pressure engagement with each other during partial welding of the two members to each other and for holding the members in alignment and pressure engagement with each other while the two members are re... | 04/24/2001 |
| 6184493 | Vertical diffusion bonding apparatus A vertical diffusion bonding apparatus is provided with a lower block, a pressurizing jig which is fitted to a metal pipe supplied from an upper position, and a pressurizing mechanisms stood erect on the lower block. The lower metal pipe is held by the lo... | 02/06/2001 |
| 6127646 | Apparatus for butting two workpieces together for a welding operation In an apparatus for connecting two workpieces together by welding, the workpieces lie on supporting surfaces and are butted together at their edges to form a butt joint. The workpieces are subjected to pressure on the side opposite to the supporting surfa... | 10/03/2000 |
| 6080961 | Blank material positioning device and blank material positioning method Corresponding edge faces of first and second blank materials disposed in a horizontal plane are aligned on a predetermined welding line. A positioning member is provided which comes in contact with and can be withdrawn from one edge face of the first blan... | 06/27/2000 |
| 6053392 | Method and apparatus for connecting two metallic workpieces together In a process for joining two metallic workpieces together, the pieces are butted together to form a butt joint and are joined to one another in the region of the butt joint. During this operation, the workpieces are subjected to a magnetic attraction forc... | 04/25/2000 |
| 5965041 | Laser weld chassis assembly process for tolerance nullification A process for assembling a storage device such as a disk drive storage device using a laser welding technique. A welding fixture holds a storage device component in a predefined three dimensional location with a small gap relative to a second component so... | 10/12/1999 |
| 5878944 | Method and apparatus for connecting two metallic workpieces together In a process for joining two metallic workpieces (1.1,1.2) together, the pieces are butted together to form a butt joint (2) and are joined to one another in the region of the butt joint (2). During this operation, the workpieces (1.1,1.2) are subjected t... | 03/09/1999 |
| 5801353 | Superimposed sheet welding system including rotatable welding electrode and cooling rings A method and apparatus for welding thin sheets (34) and (35) at the periphery of aligned holes therein by melting the sheets together by a rotating electrode (23) in a protective gas atmosphere. The sheets (34) and (35) are pressed together by copper ring... | 09/01/1998 |
| 5674420 | Clamping device for welding machine A clamping device for butt welding metal sheets includes a base for supporting adjoining edges of a first and a second associated metal sheet. A first clamping unit is positioned above the base. The first clamping unit includes a plurality of first spring... | 10/07/1997 |
| 5614112 | Installation for positioning edge to edge and welding by means of a laser beam at least two sheet blanks An installation for positioning edge to edge and welding by means of a laser beam at least two sheet blanks comprises means for supporting and positioning a first sheet blank in a horizontal reference plane, means for positioning the edge to be welded of ... | 03/25/1997 |
| 5400943 | Device for spot welding of structures formed of pressed sheet metal elements In a welding station, particularly for motor-vehicle bodies, the elements to be welded are locked in a precise position by locking devices carried by locating gates. There are provided a number of pairs of locating gates, corresponding to the number of di... | 03/28/1995 |
| 5397047 | Device for spot welding of structures constituted by sheet metal elements, particularly motor-vehicle bodies In a welding device for motor vehicle bodies there are provided a number of pairs of locating gates adapted to operate on different models of body. In the work position, each pair of locating gates can be selectively coupled to a plurality of auxiliary fi... | 03/14/1995 |
| 5136140 | Rail tensioning apparatus An apparatus for reducing a gap between an end of a rail section and an adjacent end of a longitudinally succeeding rail section of a rail fastened to ties by fastening elements by tensioning or longitudinally extending the rail section comprises two long... | 08/04/1992 |
| 5111988 | Flexible automated body assembly system and method A body welding station receives a succession of differing body component parts in order to weld such component parts into an integrated body structure of differing styles. A fixture frame has clamping and locating fixtures mounted thereon by disconnectabl... | 05/12/1992 |
| 5048743 | Rotor blade bonding device A blade bonding device permits individual blades to be bonded to a blade stub for the purpose of replacing a damaged blade. The device includes a clamp frame and hydraulic ram. A blade holder arranged in contact with the axially moveable ram shaft is guid... | 09/17/1991 |
| 4973823 | Collet assembly for cylindrical workpieces A clamping device for holding cylindrical workpieces having a nominal radius R which varies from a minimum of (R-A) to a maximum of (R+B), where A and B are the limits of the tolerance range for the nominal radius, includes opposed clamp halves each havin... | 11/27/1990 |
| 4880956 | Device for radial machining and welding element A device for radial machining and welding of a tubular body, said device comprising a tool support which can be placed around the tubular body and including four rollers assuring its guiding in rotation. The support comprises a main body of relatively mas... | 11/14/1989 |
| 4868367 | Rigid collet assembly for cylindrical workpieces A clamping device for holding cylindrical workpieces having a nominal radius R which varies from a minimum of (R-A) to a maximum of (R+B), where A and B are the limits of the tolerance range for the nominal radius. The clamping device includes opposed cla... | 09/19/1989 |
