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:
Jun. 15, 1982
Filed:
Jul. 21, 1980
Applicant:
Inventor:
Arthur J McKewan, Rochester, MI (US);
Assignee:
Microdot Inc., Darien, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411311 ;
Abstract
A threaded fastener particularly suited for use with plastics having spaced apart threads and a negative rake or 'hook' formed at the crest of certain of the threads so that axial force applied by the fastener in the direction of the head is translated in part towards the axis of the fastener, thus increasing the failure load of the screw assembly and eliminating premature stripping of the screw threads. Also disclosed is the preferred manner of making the threaded fastener of the present invention.