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:
May. 19, 1998
Filed:
Jun. 06, 1995
Gregory L Clark, Issaquah, WA (US);
Karl A Hansen, deceased, late of Seattle, WA (US);
John J DeJong, Executor, Bellevue, WA (US);
John R Hare, Federal Way, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A method of upsetting a headed rivet in a countersunk hole using an electromagnetic riveting machine having two opposed drivers which are impelled against each end of the rivet to upset the rivet with a single stroke of the machine. The movement of the driver at the headed end of the rivet in initiated slightly after movement of the driver at the shank end of the rivet to lift the headed end of the rivet slightly out of the countersink so, when the headed end driver operates, the rivet shank is deformed to fill the rivet hole as the head is driven back into the countersink for good shank interference in the hole adjacent the rivet head.