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. 02, 1985
Filed:
Sep. 30, 1982
Donald N Oehlke, Troy, MI (US);
Ralph A MacRae, Burlington, CA;
James Crammond, Hamilton, CA;
Hans R Rattmann, Burlington, CA;
Eaton Corporation, Cleveland, OH (US);
Abstract
Disclosed is an improved fastening device (70, 72, 74, 76, 78) for securement of a threaded member such as a screw ('s') to an article such as a panel or the like. The device is of the type having a base member (12) having a frusto-conical projection (14) having a lower and higher helical edge (16, 16a) surrounding an opening (40, 42') therethrough which in conjunction with a pair of resilient finger portions (30, 32') having respective free-ends (34, 36) spaced-apart from each other along an axis ('y--y') defined therebetween of which one finger portion is displaced a distance ('x') further from the base member than the other finger portion to provide a means of engaging the threads of the threaded member. Edges (16, 16a) are separated from each other by means of a slot (38) which, by extending beneath the finger portion having the higher free-end in a direction substantially transverse to axis 'y--y', is able to prevent cocking and cross-threading of the threads of the threaded member which has been a problem in the past particularly when the threaded member has a blunt rather than a pointed end.