The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2004
Filed:
Feb. 11, 2002
Thomas Esslinger, Alstead, NH (US);
Erik Esslinger, Charlestown, NH (US);
Bore Repair Systems, Inc., Alstead, NH (US);
Abstract
An apparatus, for providing a welding bead on a surface to be welded, comprises an arm supporting a welding torch in which the welding torch facilitates welding on a desired surface. A spindle supports the arm and the welding torch and at least a portion of an exterior surface of the spindle carries a thread. A motor supplies rotational drive to the spindle and causing rotation of the spindle and the arm which supports the welding torch. A framework supports a clutch, the drive and at least a portion of the spindle, and the clutch is supported by the framework so as to be engageable with the thread carried by the exterior surface of the spindle. The clutch has an engaged position, in which the clutch engages with the thread carried by the exterior surface of the spindle to cause axial movement of the spindle, relative to the framework, upon rotation of the spindle via the drive to facilitate the welding torch depositing a spiral weld on the surface to be welded, and a disengaged position in which the clutch is sufficiently spaced from the thread carried by the exterior surface of the spindle so that the spindle can be moved axially relative to the framework.