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:
Apr. 27, 1976
Filed:
Jun. 30, 1975
David Lee Wagner, Kent, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A process of forming an interference fit between a rivet and the perimeter of an aperture through which the rivet shank is inserted finds particular application in the aircraft industry where sheets of component materials are joined together as a sheet assembly by a plurality of rivets. The process utilizes a high energy impact gun which forms a button on one end of a rivet shank, the other end of the rivet shank protruding a predetermined distance from a sheet surface and prevented from longitudinal movement by a bucking bar. The impact gun is then activated against the other end to rapidly form a second button. The rivet shank is radially expanded during the riveting process to thereby swell against the perimeter of the rivet hole for compression stressing which serves to stress relieve the area adjacent to the hole during cyclic loading of a sheet assembly.