Reversible lock washer

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Description

FIG. 1 is a top perspective view of a reversible lock washer, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is an enlarged fragmentary sectional view taken in the direction of the arrows on line 3--3 of FIG. 1.

Referenced Cited
U.S. Patent Documents
D26801 March 1897 Spear
D32218 February 1900 Dougherty
920947 May 1909 Gilmore
Patent History
Patent number: D263679
Type: Grant
Filed: Aug 22, 1980
Date of Patent: Apr 6, 1982
Inventor: Bengt O. Frieberg (La Habra Heights, CA)
Primary Examiner: B. J. Bullock
Attorney: Francis X. LoJacono
Application Number: 6/180,410
Classifications
Current U.S. Class: D/8399
International Classification: D0808;