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:
Oct. 21, 2003
Filed:
Jun. 21, 2002
Glenn G. Heavens, Cheshire, CT (US);
Albert W. Van Boven, Barrington, IL (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A fastener assembly device is disclosed for fastening workpieces together. The device includes an elongate fastener having a first and a second end. The first end of the fastener defines a head and the fastener includes a threaded portion which extends between the second end of the fastener and the head. A shank portion is disposed between the head and the threaded portion and an annular collar is disposed between the head and the second end of the fastener. A washer cooperates with the fastener, the washer defining an aperture for the reception therethrough of the threaded portion of the fastener. The washer includes a plurality of protrusions which extend towards and cooperate with the annular collar. The arrangement is such that when the threaded portion of the fastener extends through the aperture of the washer, the protrusions interact with the collar for holding the fastener and the washer together. Also, each protrusion of the plurality of protrusions is unevenly spaced circumferentially from an adjacent protrusion.