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:
Sep. 20, 1977
Filed:
May. 24, 1976
William A Roden, Rancho Santa Fe, CA (US);
Glenn L Criger, San Diego, CA (US);
General Dynamics Corporation, San Diego, CA (US);
Abstract
An improved back-up tape for use in fusion welding aluminum sheets and structures is disclosed. The tape comprises a small diameter, heavy wall, flexible woven refractory fiber tube within a slightly larger diameter similar tube, both partially flattened against an adhesive coated surface of a wider, heat resistant, strip. In use, the tape is pressed against the back side of a joint to be welded with the adhesive bonding the tape along strips parallel to but slightly spaced from the joint. The joint is fusion welded without the addition of any filler wire. A flat weld underbead, with no molten metal drop-through is produced, with no melting or other significant change in the tape. The tape is then stripped off and the welded structure is ready for use.