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:
Jun. 28, 1977
Filed:
Nov. 14, 1975
Applicant:
Inventor:
Gary Martin Curtis, Elgin, IL (US);
Assignee:
Illinois Tool Works Inc., Chicago, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
151 37 ; 85 5 / ; 151 40 ;
Abstract
A locking fastener unit including a spring washer preassembled to a rotary fastener member with mounting means having an axis disposed eccentrically to the axis of the thread convolutions so that retrograde motion of these threaded fastener units is resisted both by the spring tension of the washer and by the requirement that the washer must include a translational movement element as the fastener member is rotated in a retrograde direction.