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| Number | Title | Issue Date |
| 8097825 | Laser cladding apparatus and method A laser-clad processing apparatus of the present invention is one which is for carrying out laser-clad processing onto a valve-seat portion of a cylinder head, and is characterized in that it comprises cylinder-head holding means (1) for holding a cylinder he... | 01/17/2012 |
| 7173209 | Method and apparatus for welding sheet overlaps Where can bodies of sheet metal are welded between the welding rollers of a welding machine, the welding current is not applied to the welding rollers until the body is between the welding electrode rollers. In this way, the quality of the weld at the initial weld p... | 02/06/2007 |
| 7094048 | Flexible imaging member belt seam smoothing method Apparatus comprising a support member having a flat surface adapted to receive and support a seam region of a flexible belt comprising thermoplastic polymer material having a predetermined glass transition temperature, a heatable member having a smooth heatable flat... | 08/22/2006 |
| 7049542 | Laser welding system Disclosed herein is a laser welding system having a travel path to carry a first blank and a second blank. An upstream clamp assembly and a downstream clamp assembly are positioned on the travel path and each of the upstream and downstream clamp assemblies are movab... | 05/23/2006 |
| 7026574 | Wire gripper for a drive unit of a wire feeder A gripping device for a set of pinch rollers used in a wire feeder that supplies a welding operation with a consumable welding wire. The welding wire passes between the pinch rollers whereby the pinch rollers engage the wire with a gripping force and incrementally r... | 04/11/2006 |
| 7020962 | Method for producing a cam for a camshaft The invention relates to a method for producing cams (1) for a camshaft. The cams are produced by bending together the ends of long profile strips (4) or by bending and putting together several pieces of profile strips in a circumferential direction. C... | 04/04/2006 |
| 6881919 | Powder feed nozzle for laser welding A powder feed nozzle for laser welding applications including a multiple outlet nozzle tip for focusing a discharged powder stream. The multiple outlet nozzle tip disperses multiple outlet streams and includes a powder discharge outlet and at least one focus gas dis... | 04/19/2005 |
| 6747235 | Method and apparatus for welding sheet overlaps Where can bodies of sheet metal are welded between the welding rollers of a welding machine, the welding current is not applied to the welding rollers until the body is between the welding electrode rollers. In this way, the quality of the weld at the initial weld p... | 06/08/2004 |
| 6710291 | Forming process and system A process forms workpieces in a forming system with at least one forming station. The workpieces are transported from or to the at least one forming station. Outside the time period provided for the forming of a certain workpiece, a machining takes place in the form... | 03/23/2004 |
| 6566624 | Welding assembly with nestable conductive ends A welding material in positioned in electrically conductive relation between exterior surface portions of first and second weldable members, such as hydroformed tubes, at a location where the first and second weldable members are to be joined. A welding d... | 05/20/2003 |
| 6452128 | Method of feeding a welding machine, as well as a welding machine and an automatic feeding device for carrying out the method In a rolled seam welding machine which can be fed from the front for producing a lap seam, the welding roller which is disposed in front of the Z rail can be swung away in order to facilitate automatic feeding of the welding stock into the Z rail.... | 09/17/2002 |
| 6345425 | Rollformer with transverse scorer An apparatus includes a scoring device for making transverse score lines on a roll of sheet material, a dimpler device or dimpler roller for making dimples adjacent the score lines at predetermined width locations, and a rollformer adapted to continuously... | 02/12/2002 |
| 6328197 | Aerosol dispensing container and method for manufacturing same A container body is made from a composite sheet having a metal layer which has at least one side covered by a corrosion-resistant layer, such as a layer of thermoplastic. The sheet is moved under one or more high-pressure water jets which remove a strip o... | 12/11/2001 |
| 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 |
| 6215084 | Method and apparatus for welding container bodies In a guide and calibrating tool for guiding container bodies for welding, at least one of the guide rollers is driven. The drive is pneumatic, by compressed air blown by a nozzle onto recesses in the roller. The roller is driven only initially upon restar... | 04/10/2001 |
| 6160235 | Measurement of welds Resistance welds on overlapped sheets of metal, such as the welded side seam of 3 piece cans, are monitored by measuring the width of the extrusion (5, 6) formed by material flowing out from the edge of the overlapped sheets (1, 2) caused by the welding p... | 12/12/2000 |
| 6043448 | Method of welding cylindrical bodies A method for welding using an on/off switching control. The switching control forms a wave cycle with a plurality of peaks. Within a half wave cycle (1/2f) of welding current f, the wave form takes the shape of an inclined straight line A rising to a pred... | 03/28/2000 |
| 5951885 | Method and apparatus for generating welding pressure in a roller seam welding machine In a roller seam welding machine, the upper welding roller is led through a welding-force adjustment device with two spring elements. One spring is already effective when the initial deflection of the welding roller occurs. The other spring comes into ope... | 09/14/1999 |
| 5925264 | Method and apparatus for detecting surface contamination in a weld area An apparatus/method for detecting contamination during welding is disclosed. In one embodiment, contamination is detected during the welding of overlapping metal portion used in the production of can bodies. The apparatus monitors the voltage supplied to ... | 07/20/1999 |
| 5841094 | Method and apparatus for resistance welding coated sheet metal For welding sheet-metal blanks coated with electrically conductive material, the thickness of the coating is measured with a measurement device. The welding current source controls the welding current I as a function of the film thickness reading obtained... | 11/24/1998 |
| 5841090 | Method and apparatus for the seam welding of containers For butt welding or lap welding container bodies, each body is guided between an outer current-carrying electrode roller and an inner roller. According to the invention the inner roller is movably mounted and exerts an opposing pressure to the rigidly mou... | 11/24/1998 |
| 5679272 | Method of welding containers and apparatus therefor When welding a series of container bodies, the welding speed is at first increased to prevent the first body from colliding with the second body at the intake to the welding machine. The welding speed is then reduced to a rated welding speed Vs... | 10/21/1997 |
| 5676858 | Roller seam welding process and electrode roller head mounting on a resistance seam welding machine The lower welding wheel (2) of a resistance seam welding machine is vertically adjusted by providing retaining pieces (10) for the stator (8) of the electrode roller head, which are able to position the electrode wheel head in different vertical settings ... | 10/14/1997 |
| 5622637 | Process for seam welding an overlapping sheet-metal seam In a seam welding process for overlapping sheets, in particular for welding can bodies, the welding force is momentarily reduced upon each insertion of a can body between the welding rollers. This keeps the welding pressure constant even at the start of a... | 04/22/1997 |
| 5489757 | Process for resistance welding arrangement for carrying out the process A process and apparatus for resistance-welding produce a welding current which pulsates in periodic half-waves, in particular an alternating current. The, welding current is generated from a primary alternating voltage which is chopped n times (n>1) in ea... | 02/06/1996 |
| 5420389 | Bearing mounts for electric-resistance can welders The disclosed bearing mount includes a bearing with inner and outer raceways and rollers operating between the raceways, the raceways being fixedly held fast relative to separated structures and the rollers rotatably supporting them and the structures rel... | 05/30/1995 |
| 5366137 | Method and apparatus for shaping metal sheets into can bodies and feeding the can bodies to a welding station The can body to be welded in a welding station is shaped by gradually bending flat metal sheets zone by zone along a linear conveying route until the can body has been shaped. This linear conveying route at the same time leads to the welding station. In t... | 11/22/1994 |
| 5290990 | Seam welding machine for joining sheet blanks together The seam welding machine with welding arrangement 10 has a lower part (1) and an upper (2). Load-bearing components are upper and lower longitudinal girders (20, 21) with a rigid connection (3, 4) between them. For clamping sheet blanks (7, 8) for welding... | 03/01/1994 |
| 5249725 | Apparatus for re-using wires used once for mash seam welding The invention is related to an apparatus for re-using a copper wire having been used once for mash seam welding in a mash seam welder for mash seam welding a lap formed by overlapped opposite side edges of a metal sheet or like blank between upper and low... | 10/05/1993 |
| 5171961 | Monitoring weld voltage A seam weld machine includes a voltage monitoring circuit (9) for determining weld quality. The voltage is sensed by two pick-ups. A first pick-up is in the form of a conductive rider (10), mounted to directly sense the voltage from a weld wire (4). The w... | 12/15/1992 |
| 5122629 | Resistance seam welding machine A compact resistance seam welding machine wherein the upper electrode roller (14) is provided on a pivotally mounted arm (12) instead of on a pendulum roller head. The lower electrode roller (16), which is disposed below the upper electrode roller (14), i... | 06/16/1992 |
| 5103070 | Rail for guiding sheet-metal edges which are to be welded together A Z rail for welding the longitudinal edges of can bodies has two supporting bodies, each with a longitudinal groove comprising two lateral surfaces which are at least roughly parallel to each other, and a base surface which is at least roughly perpendicu... | 04/07/1992 |
| 5089682 | Roller electrodes for electric-resistance welding machine A roller electrode combination for use in electric-resistance welders, the electrode having relatively rotatable components separated by very small gaps, and an electrically and thermally conductive liquid is contained by the components across the gaps; t... | 02/18/1992 |
| 5081331 | Body blank welding machine Disposed on a central machine portion (10) are two clamping devices (32,34), each for a respective body blank (Pl,Pr), and a welding device (20) for welding together overlapping margins of the blanks (Pl,Pr). Di... | 01/14/1992 |
| 5064982 | Electric resistance seam welding method An electric resistance seam welding method for a hard-to-weld steel sheet is disclosed which prevents the occurrence of flashes. The steel sheet has metal harder than tin and an intermetallic compound as coating layers, the sheet thickness of the steel sh... | 11/12/1991 |
| 5060840 | Apparatus for conveying rounded can body blanks to a welding unit A conveying apparatus feeds can body blanks to a welding unit with the longitudinal edges of the can body blanks even, without being offset in the longitudinal direction. The apparatus includes a centrally disposed revolving device (5; 5'; 5") which serve... | 10/29/1991 |
| 5017749 | Resistance welding apparatus Apparatus for resistance welding an elongate seam in a tubular article, comprises a first electrode wheel outside the article, a second electrode inside the article and a continuous electrode wire arranged to pass over the electrodes to provide surfaces o... | 05/21/1991 |
| 4956536 | Device for pre-calibrating hollow cylindrical bodies in seam welding machines Tin cans are pre-calibrated prior to entering between the electrode rollers of an automatic seam welder, by a device installed immediately upline of the final calibration and weld station; such a device comprises one or more sets of rollers, each set alig... | 09/11/1990 |
| 4950192 | Method of manufacturing of color display tube A method of manufacturing a color display tube in which after the envelope is formed the shadow mask is displaced relative to the display window via movable positioning members provided in the envelope. After the color display tube is assembled a test pat... | 08/21/1990 |
| 4947013 | Apparatus for the guiding of can bodies of a non-circular cross-section The guiding apparatus for a body for the production of can bodies having a non-circular cross-section by interconnecting the edges of the body by means of making a longitudinal seam comprises at both of the mutually opposite sides of the body supported sy... | 08/07/1990 |
