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:
Nov. 12, 1991
Filed:
Apr. 16, 1991
John W McRoskey, Rancho Santa Fe, CA (US);
Republic Tool & Manufacturing Corp., Carlsbad, CA (US);
Abstract
A thumbnut for use with a convex surface is provided with a plastic sheath in which the bottom face thereof has a series of projections arranged in a circumferential manner like the numerals on a clock face. Once the thumbnut is threadedly engaged with a bolt extending from the convex surface, these projections react in a ratchet-like manner with that surface. As the thumb nut is tightened the projections cause it to move alternatively from unstable 'override' positions to stable 'straddle' positions which effectively lock the thumbnut with respect to the convex surface, regardless of the amount of torque applied to the thumbnut.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile