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:
Jan. 20, 1981
Filed:
Feb. 05, 1979
Abstract
A device for welding two metallic hollow bodies together in end-to-end connection by means of an electric arc moved by the effect of an external magnetic field along the welding joint, comprises, clamping means engaged with the bodies to clamp them in end-to-end relationship with the respective ends to be joined disposed closely adjacent. In addition, a magnetic coil is disposed within at least one of the bodies or it is advantageously located with a pole piece disposed in the gap between the two bodies and overlapping each of the bodies so as to produce a magnetic field in the vicinity of the ends to be joined. The pole shoe of the magnet advantageously comprises a pole piece which is conformable to the dimensions of the shape of the welded joint.