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. 28, 1985
Filed:
May. 07, 1982
Applicant:
Inventor:
Jerry A Sigmund, Bala Cynwyd, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B / ; F16B / ;
U.S. Cl.
CPC ...
411361 ; 411411 ;
Abstract
A fastener in accordance with this invention is a pin member usable with a collar to fasten a joint. The pin member comprises a head and an integrally formed shank extending therefrom. The shank includes a locking portion formed with a plurality of ribs separated from each other by locking grooves, the depth of which are all substantially equal to each other. At least one of the ribs is formed with a portion symmetrical about a line extending at a right angle to the axis of the shank and a portion asymmetrical about that line. Preferably all of the ribs have a radiused crest.