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. 17, 1990
Filed:
Oct. 05, 1989
Applicant:
Inventor:
James Shaffer, Maitland, FL (US);
Assignee:
Consulier Industries, Inc., Riviera Beach, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411136 ; 411150 ; 411155 ;
Abstract
A bolt shank and washer have contiguous respective elliptical and circular surfaces that interact to impart an undulated axial distortion to the washer in a circumferentially running sinusoidal way, so that the washer acts in spring-like fashion to lock the bolt in its tightened position. The elliptical surface is tapered outwardly toward the bolt head to give an increased spring constant with increased tightening.