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:
Feb. 28, 1989
Filed:
Jun. 21, 1984
Applicant:
Inventor:
John D West, Manitowoc, WI (US);
Assignee:
The Manitowoc Company, Inc., Manitowoc, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
228175 ; 228-41 ;
Abstract
A method and apparatus for welding hollow elongated beams wherein the plates forming the beam are tack-welded together in proper relationship and all corners of the beam are simultaneously and continuously welded by moving a multiple head welding carriage along the length of the beam in order to minimize warpage and longitudinal deflection of the beam due to the welding heat.