Self-cleaning diaphragm for racing plate

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

FIG. 1 is a bottom plan view of a self-cleaning diaphragm for racing plate showing my new design, the top being a mirror image of the bottom shown;

FIG. 2 is an elevational view taken from one side thereof, the opposite side being a mirror image of the side shown;

FIG. 3 is a rear elevational view; and,

FIG. 4 is a front elevational view.

The broken line representation of a racing plate in FIG. 1 is for purposes of illustration only.

Referenced Cited
U.S. Patent Documents
D34868 July 1901 Kent
98323 December 1869 Waterhouse et al.
620740 March 1899 Churchill
813596 February 1906 Stephensmeier
1060096 April 1913 Judsen
1338986 May 1920 Kent
1442748 January 1923 Trauger
1496622 June 1924 Cahill
1825186 September 1931 Harsem
3628608 December 1971 Sherman
3747684 July 1973 Wallen
Patent History
Patent number: D250139
Type: Grant
Filed: Oct 4, 1977
Date of Patent: Oct 31, 1978
Inventor: Stanley R. Brown (Sacramento, CA)
Primary Examiner: James R. Largen
Attorney: Robert G. West
Application Number: 5/839,264
Classifications
Current U.S. Class: D30/35
International Classification: D3099;