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. 26, 1977
Filed:
Aug. 26, 1976
Applicant:
Inventor:
David A Kesselman, Sonoma, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
85 61 ;
Abstract
A tamper resistant fastener having a stud engaging portion and a slip ring surrounding the stud engaging portion and slidably connected thereto to freely rotate thereabout. The slip ring prevents a gripping instrument from applying enough force to the stud engaging portion to allow that portion to be separated from the stud. A gripping means engaging portion is connected to the stud engaging portion by a frangible neck which breaks upon the application of a predetermined amount of torque to separate the gripping means engaging portion from the stud engaging portion. One embodiment of the invention comprises a bolt-like device.