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:
Jun. 13, 1989
Filed:
Aug. 11, 1987
Hitoshi Matsui, Toyota, JP;
Hiroshi Suzuki, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
In this method for removing spatter deposits accumulated upon the inner surface of the end portion of a tubular arc welding torch nozzle, an end portion of a welding rod being fed for arc welding through an end portion of this nozzle with a space being left between this welding rod and the inner surface of the end portion of the nozzle, an electrical current is supplied through an electromagnetic coil positioned longitudinally proximate to the end portion of the nozzle. This electrical current typically generates an electromagnetic force upon the spatter deposits in the general direction parallel to the central axis of the nozzle, thus removing such spatter deposits from the inner surface of the end portion of the nozzle. The electrical current through the electromagnetic coil may further be provided from a condenser, in which case it will be quickly varying, and yet further the electromagnetic force may be advantageously concentrated by a sheath of ferromagnetic material fitted around the electromagnetic coil. A device is also disclosed for implementing this method.