Bicycle crank

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Description

FIG. 1 is a perspective view of a bicycle crank showing my new design;

FIG. 2 is a right side elevation view thereof, the left side being a mirror image of that shown;

FIG. 3 is a front elevation view thereof, and

FIG. 4 is a rear elevation view thereof.

The broken lines shown in FIG. 1 are for illustrative purposes only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
1337765 April 1920 McGuckin
4106357 August 15, 1978 Segawa
4475894 October 9, 1984 Sugino
4711635 December 8, 1987 Arnce
4807491 February 28, 1989 Struckenbrok
Other references
  • American Bicyclist & Motorcyclist, Jun. 1989, p. 40, Lun Chi Corp, bicycle crank. American Bicyclist & Motorcyclist, Oct. 1986, p. 17, Thun's Aero Coronado bicycle crank. American Bicyclist & Motorcyclist, Jul. 1986, p. 41, all the above bicycle cranks. Photographs of Applicant's Prior Bicycle Crank Arm Product (4 pages), (Photographs show four different angles), in public use and on sale prior to 10/23/89.
Patent History
Patent number: D319808
Type: Grant
Filed: Oct 23, 1989
Date of Patent: Sep 10, 1991
Inventor: Gary B. Cook (Mission Viejo, CA)
Primary Examiner: James M. Gandy
Assistant Examiner: Melody Brown
Law Firm: Stetina and Brunda
Application Number: 7/426,391
Classifications
Current U.S. Class: Crank Or Sprocket (D12/123); 74/5941