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:
Aug. 18, 1987
Filed:
Jul. 07, 1986
Applicant:
Inventor:
Robert E Bidwell, Melville, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411-6 ; 411432 ; 81475 ;
Abstract
A torque limiting fastener in which a torque limiting coupling between telescoping head and driven elements includes a resilient spring carried by one element and a complementary recess formed in the other element, the engagement of the spring with the complementary recess resisting both axial and rotational displacement of the head element relative to the driven element when the head element is rotated in the tightening direction, and further includes a surface forming one end of the recess engageable by the spring to establish a positive connection between the elements when the head element is turned in the loosening or unscrewing direction.