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:
Jul. 23, 1985
Filed:
Sep. 24, 1982
Philip D Becker, Southbury, CT (US);
Buell Industries, Inc., Waterbury, CT (US);
Abstract
A self-retaining nut, and panel assembly, in which the nut body includes a shoulder portion having two or more panel piercing pins which, are caused to pierce the panel and are bent to secure the nut to the panel. In addition, a piercing and extruding punch pierces the panel and causes extrusion or cold flow of the panel metal in the piercing region to flow into a enlarged bore or undercut portion of the nut to further aide in its retention. The assembly of the nut type fastener and the sheet panel can be accomplished in a method of application in which the pins are caused to pierce the panel, bent into fastening position and the panel is pierced and extruded to provide an opening for a threaded fastener to be secured to the nut while causing cold flow of panel material into the nut for further retention in essentially one operative step.