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 |
| 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 |
| 7247000 | Weld shielding device for automated welding of impellers and blisks The present invention provides an apparatus for use in automated welding repairs, particularly those repairs intended for impellers, blisks, and similar structures. There is provided a welding shield which is shaped to fit securely within valleys of an impeller. An ... | 07/24/2007 |
| 5811756 | ARC welding method for aluminum members and welded product excellent in dimensional accuracy and external appearance When aluminum members are arc welded at a welding speed of 2-7 minute, a quantity of input energy is remarkably reduced so as to form a welded joint free from deformation or strains. A weld bead with sufficient penetration is formed due to the high therma... | 09/22/1998 |
| 5734142 | Method of welding electrically conductive metal profiles A method of flash/butt welding an aluminum bicycle wheel rim, in which an aluminum sleeve having a dielectric anodized hardcoat surface finish is inserted into the center of the rim in order to support the interior walls of the rim during the welding proc... | 03/31/1998 |
| 5726408 | Weld backing ring for nozzle repairs A tube such as a nozzle to be repaired or tubular sections to be repaired or connected to each other, are welded using a backing ring having a groove in the area to be welded. The groove forms a purge space for purge gas between the ring and the tube to e... | 03/10/1998 |
| 5450996 | Seamer with improved back-up assembly This seamer (10) with back-up assembly (50) includes a first table (30) supporting one of the workpieces W1, a second table (32) supporting the other of the workpieces W2, fingers (40, 42) clamping the workpieces to the table, and an improved back-up asse... | 09/19/1995 |
| 5451741 | Backing strip for welding technology The invention provides a backing strip for welding technology which can be adapted to a large variety of welding methods and applications and is fully effective also in non-horizontal positions. This is obtained in that the more easily meltable forming la... | 09/19/1995 |
| 5323950 | Flexible, adjustable welding backup mandrel A backup mandrel apparatus to engage the inner surface of a metal tube being welded to support the weld bead and to keep a molten weld puddle from sagging and falling through the tube wall during welding. The apparatus includes a flexible inflatable bladd... | 06/28/1994 |
| 5256847 | TIG shielded atmosphere welding system A chamber includes a plurality of chamber elements, forming a chamber having a bottom, sides, ends and an open top, and a support wire for flexibly linking the chamber elements. The chamber elements include a first set of U-shaped members having arm porti... | 10/26/1993 |
| 5175411 | Method for welding structural gaps A method for welding a structure containing a gap which is exposed on either side of the gap is disclosed. The method is ideally suited for welding the gap which exists between the inner cylinder and nozzle chamber of a steam turbine during manufacture an... | 12/29/1992 |
| 5158225 | Backing tool for welding A hand held backing plate tool for the welding repair of holes in sheet metal panels includes a demountable backing plate which may be selected with a size and shape adapted to fit the contour of the panel adjacent the hole to be repaired. The selected ba... | 10/27/1992 |
| 5110031 | Weld suporting ring for pipes For internally supporting the annular weld during welding together of two pipe ends of two pipes extending mutually in line a weld supporting ring is used consisting of ring pieces comprising at least one supporting body of ceramic material bounding the o... | 05/05/1992 |
| 4892993 | Welding system for hollow thin walled members In a system for welding thin section aluminum castings to elongated sections of thin walled hollow aluminum extrusion, an expandable mandrel specific to the weldment to be assembled serves also as a holder and positioner while welding is in progress. A po... | 01/09/1990 |
| 4800250 | Methods and apparatus for manufacturing tubes A method and apparatus for guiding the opposed edges of sheet material into substantially abutting edge-to-edge relationship with one another and thereafter welding said edges by a high energy welding source to form a seam. The invention enables the conti... | 01/24/1989 |
| 4759981 | Welding backup tape assembly A welding backup tape assembly includes a flexible, elongated, heat resistant ribbon, such as a metal foil strip, with a flexible, elongated, heat resistant, fibrous rope having a flexible reinforcing core, preferably metallic, attached to one major side ... | 07/26/1988 |
| 4722711 | Method and apparatus for position orientation of a metal halide lamp base assembly A method and an apparatus for position orienting a base assembly of a metal halide lamp is describe for maintaining the curved arc tube in the upward position when the lamp is inserted in a socket. Once the lamp has been fully assembled and sealed a locat... | 02/02/1988 |
| 4723064 | Purge gas system for welding pipes A purge gas system for welding pipes having a flat circular plate with a flat gasket adapted to engage the end of a pipe section and a pair of toggle joints positioned inside the end of the pipe and formed to have their knuckles press outwardly against th... | 02/02/1988 |
| 4719329 | Can body and method of making the same A can body of surface treated steel plate, such as TFS, having adjacent longitudinally extending edges of tubular shaped member welded by irradiation of laser beam and provided with inside surface of welded seam having reliable paint retaining characteris... | 01/12/1988 |
| 4682724 | Welding apparatus A welding backup shoe apparatus that comprises a double-acting fluid cylinder having a piston rod extending from it. A first retainer shoe is attachable to the piston rod and a second retainer shoe is opposed to the first retainer shoe. A first backup sho... | 07/28/1987 |
| 4611751 | Method and apparatus for the manufacture of cylindrical hollow bodies The invention comprises a method and an apparatus for the manufacture of cylindrical hollow bodies by the shape welding process. This apparatus comprises a connection between a rotatably mounted supporting body which can be driven and a base body onto whi... | 09/16/1986 |
| 4493963 | Mandrel machine A method and machine for weld cladding, particularly for welding material to a cylindrical plate, such as hardfacing or corrosion resistant alloys normally applied as claddings. The machine has a mandrel extending from it for supporting and rotating the p... | 01/15/1985 |
| 4493966 | Internal mandrel used in an operation of butt joining two lengths of tubing by welding An internal mandrel (22) cooperating in the operation of joining two successive lengths of tubing by welding, and it is characterized in that this mandrel comprises zones (25, 26, 27) separated longitudinally and serving respectively for matching, welding... | 01/15/1985 |
| 4450338 | Method of fabricating a truss core sandwich panel A method of fabricating a truss core sandwich panel of the type including first and second face sheets secured on opposite sides of a corrugated sheet. The first face sheet is welded to one side of the corrugated sheet and the second face sheet is positio... | 05/22/1984 |
| 4436979 | Apparatus for continuous laser welding An apparatus for continuous laser welding adjacent longitudinally extending of generally tubular shaped members is disclosed. The apparatus comprises a Z-bar guide for positioning and guiding the edges as they are moved toward a welding area with a laser ... | 03/13/1984 |
| 4420672 | Method and apparatus to produce electroslag T-joints where fillets are required A method and apparatus for producing electroslag T-joints where fillets are required is provided by utilizing a water-cooled copper shoe with a slag relief notch placed along the weld joints to provide a dam for the fillet material; the location of the sl... | 12/13/1983 |
| 4420676 | Welding apparatus An apparatus for safeguarding a welding pool in mechanized welding in a constrained position, for example a vertical position, comprises sliding blocks pressed against the surfaces of the work pieces to be welded and supplying the welding current and the ... | 12/13/1983 |
| 4387845 | Method and apparatus for holding and cooling a metal tube during welding The apparatus of the present invention is used for holding and cooling a metal tube during welding. The tube has a cylindrical bore of predetermined diameter extending therethrough. The apparatus comprises a cylindrical mandrel having a bore extending axi... | 06/14/1983 |
| 4383356 | Method and apparatus for the production of rotor and stator sheet packets for electrical machines A method and apparatus for making packets of rotor or stator sheets for electrical machinery. At a certain station to which a preselected number of sheets are delivered, the sheets are both aligned and joined together. Aligning is effected by an aligning ... | 05/17/1983 |
| 4363954 | Device for the back support of the first run weld pool in the automatic butt-welding of pipes A device for the back support of the first run weld in the automatic butt-welding of two pipes held together by the two circumferential facing sets of radial pistons of an internal connection. The connector includes a set of independent copper pads of tra... | 12/14/1982 |
| 4360141 | Holder for welding seam back-up tape A welding seam back-up structure for mounting on the backside of the adjacently positioned edge margins of work members or workpieces that are to be joined by a weld seam, in which an elongate back-up tape of fiberglass or other suitable material is retai... | 11/23/1982 |
| 4348574 | Flux dam for submerged arc welding A dam, or barrier, structure is moved along the edge, or corner, of a workpiece to control the flow limits of molten material of arc welding. The dam structure provides a dimentionally stable groove at the edge of the workpiece surface into which is recei... | 09/07/1982 |
| 4344556 | Welding backup tape and its method of manufacture In welding metal sheets together from only one side, an improved welding backup tape is self-adhesively applied to insure the consistent formation of a smooth, inclusion free, slightly convex underbead which requires little or no dressing, or grinding, an... | 08/17/1982 |
| 4337387 | Backing support strip for welding A section to aid in the welding of metal sheet, the section having a body portion forming part of the sheets, a projection extending from the body portion, which projection receives a strip of weld resistant material, which strip is to be located adjacent... | 06/29/1982 |
| 4326116 | Apparatus for electric resistance heating and cooling tubular workpieces An apparatus comprising a case with a carriage mounted on horizontal guides thereof which carriage supports two brackets provided with contact clamps. Under the brackets there is mounted a bath containing a cooling medium. At least one of the brackets is ... | 04/20/1982 |
| 4321448 | Method of and apparatus for welding metal bars A welding method in which two metal bars are disposed such that the opposing ends of these bars are placed in a welding mold with a predetermined welding gap preserved therebetween, and are jointed to each other by filling the space formed between the opp... | 03/23/1982 |
| 4310737 | Pipe resistance butt welding apparatus A pipe resistance butt welding apparatus comprises a movable clamp and a fixed clamp to locate the pipes to be welded. Current-feeding shoes contact the ends of the pipes to be welded together. A device is provided for axially moving the movable clamp in ... | 01/12/1982 |
| 4295593 | Welding seam back-up means A welding seam back-up arrangement for mounting on the backside of the adjacently positioned edge margins of work members or workpieces that are to be joined by a weld seam, which is selectively variable as to length to accommodate it to weld seams of dif... | 10/20/1981 |
| 4285458 | Welding backup shoe apparatus Welding backup shoe apparatus, wherein plural backup shoes are carried side-by-side on flexible bands, each backup shoe being resiliently biased outwardly so that the backup shoes are resiliently pressed against the inner side of a weld joint between end-... | 08/25/1981 |
| 4247750 | Vertically positioned submerged arc flux dam Relates to a flux dam for submerged arc vertical position welding. The dam comprises a sheet of high temperature stable non-metallic material, a permanent magnet aligned with a first pole thereof substantially at a first surface of the sheet for magnetica... | 01/27/1981 |
| 4242563 | Automatic plug welding apparatus Apparatus for automatically welding a plug which is previously driven into holding engagement with the tube sheet to plug a leaky tube which has been reamed out to produce a pressed fit with the plug.... | 12/30/1980 |
