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. 27, 1994
Filed:
Sep. 28, 1993
Applicant:
Inventor:
Brad F Golledge, Kirrawee, AU;
Assignee:
John Lysaght (Australia) Limited, New South Wales, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411453 ; 411394 ; 411922 ;
Abstract
An impact drivable fastener, suitable for fastening sheet metal articles, includes a shank extending from a tip (10) at one end, which tip is adapted to be driven through a metal sheet, and a head (10) at the other end. A large pitch multi-start thread formation (11), including ribs separated by flutes, is formed on a part of the shank. The depth of the flutes and the height of the ribs increases uniformly from zero at the starting end of the formation nearer to the tip to maximum values at a position adjacent the head.