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. 26, 1991
Filed:
Jul. 27, 1990
George G Dewey, Prospect Heights, IL (US);
Ralph D Tenuta, Mount Prospect, IL (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
An improved fastener mountable within a plasterboard wall from one side of the wall and used with a screw comprises a fastener body and a toggle clamp pivotable between an insertion position and a toggle position. The fastener has a drilling tip adapted to drill a hole of sufficient diameter so as to accommodate the fastener, except for the fastener head which is adapted to coact with a driving tool. In a first embodiment, the drilling tip is an integral part of the fastener body and extends axially beyond the toggle clamp in its insertion position. In a second embodiment, the drilling tip is an integral part of the toggle clamp and extends axially beyond the fastener body in the insertion position of the toggle clamp. In each embodiment, the fastener is self-drilling.