With Edge Guidance Means Patents (Class 219/61.13)
  • Patent number: 8841576
    Abstract: A method for producing a metal sheet with a welded-on tube which has at least partially curved sections, wherein the tube is guided by at least one guide element onto the sheet, is pressed thereon with at least one pressure element and is welded thereto at least at some points and wherein the tube is bent to form the curved sections. In order to achieve the welding-on in a simple manner even in the curved sections, it is provided that a bending is carried out in a plurality of discrete steps, wherein in individual steps firstly the tube with the at least one guide element is bent around a last created welding point and thereafter a new welding point is created. Furthermore, the invention relates to a device for carrying out the method.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: September 23, 2014
    Assignee: DTEC GmbH
    Inventors: Michael Dietl, Arnold Teufel
  • Patent number: 8513559
    Abstract: An apparatus applies a wear coating on the interior surface of conduits, particularly conduit elbows, in which the weld head applying a weld bead forming the wear coating is supported by a wheel engaging the bottom surface of the conduit and interconnected with a push/pull cart mounted on a linear support frame exteriorly of the conduit by a plurality of linkage elements. Each of the head element and the linkage elements include a centralizing joint having a pair of transversely opposing rollers that engage the lateral sides of the conduit to maintain a consistent positioning of the welding arm at the distal end of the apparatus. The welding arm includes a three-axis adjustment for the welding torch tip for accurate location thereof within the conduit. Positional adjustment of the welding torch tip is provided by independent electric motors associated with each pivot axis in the welding arm.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: August 20, 2013
    Assignee: SWA Holding Company, Inc.
    Inventor: Randel Brandstrom
  • Patent number: 6588648
    Abstract: During manufacture of certain hollow profiles suitable for use in car body construction the welded profiles are subjected to a further deformation process, namely hydroforming. At present the corresponding welding machines are charged manually. The invention relates to a method and a device for transferring hollow-profile blanks, characterized in that during transfer the positioned fusion faces of the blanks are pressed against each other at least in the area of the weld.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: July 8, 2003
    Assignee: Elpatronic AG
    Inventor: Peter Gysi