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:
Dec. 03, 1996
Filed:
Oct. 28, 1994
Neil J Sherry, Knebworth, GB;
Keith Denham, Welwyn Garden City, GB;
Avdel Systems Limited, Welwyn Garden City, GB;
Abstract
A pin-type fastener capable of dual-function includes a pin which can be used in fastening workpieces together. The pin has a pintail capable of being removed from the remainder of the pin after the pin has been installed as a fastener in a workpiece, and the pintail can then be used as a weldstud and welded to the same workpiece as the pin-type fastener, or to another workpiece. The pin-type fastener can be a two-part fastener, for example a lockbolt including a nut or swageable collar engageable with the pin. The pin may have a breakneck to facilitate removal of the pintail. The pin itself may be a weldstud. In use, the pin-type fastener is installed in a workpiece and the pintail is removed, and then the pintail is used as a weldstud, being welded to a workpiece. Electric welding is employed. The advantage of the fastener is in economy through second use of the pintail as a stud.