Reversible lock washer

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
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; and

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
Other references
  • Bradley Hardware Cat. 41; p. 163; Wrought Brass Washer (middle left).
Patent History
Patent number: D268566
Type: Grant
Filed: Sep 28, 1981
Date of Patent: Apr 12, 1983
Inventor: Bengt O. Frieberg (La Habra Heights, CA)
Primary Examiner: B. J. Bullock
Attorney: Francis X. LoJacono
Application Number: 6/305,928
Classifications
Current U.S. Class: D/8399
International Classification: D0808;