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:
Sep. 02, 1980
Filed:
Jun. 02, 1978
Applicant:
Inventor:
Horace D Holmes, Farmington Hills, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
151 20 ; 151 22 ;
Abstract
This invention relates to fasteners and more particularly to a male or female fastener element, such as a bolt or nut, having a skewed external work contacting surface such that when the fastener element is tightened onto another fastener element, and against a workpiece, a substantial lateral loading is produced. Such loading causes the male and female threads to shift laterally into an asymmetric, jammed configuration which has been found to exhibit extraordinary resistance to loosening under conditions of vibration. The nut thread is characterized by a helical flat at the major diameter thereof to make positive contact with the crown of the bolt thread when lateral skewing occurs.