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:
Apr. 10, 1990
Filed:
Sep. 13, 1988
Jay M Stafford, Torrance, CA (US);
Rexnord Holdings Inc., Torrance, CA (US);
Abstract
A captive screw assembly for impeding the removal of a screw from a housing or other part. The assembly includes a housing having a hole and an annular flange projecting inwardly in the hole at a location spaced from the hole's two ends. A screw encircled by a coil spring extends through the housing hole with the spring being retained between the screw head and the inwardly-projecting flange. A stopnut, which is sized to be freely received in the housing hole, is threaded to a selected location on the screw. The screw is urged longitudinally upwardly from the housing by the coil spring, to a point where the stopnut abuts against the inwardly-projecting flange. A full removal of the screw from the housing is thereby impeded.