Control shaft for a valve
Description
FIG. 1 is a front, right side, and top perspective view of a control shaft for a valve showing my new design.
FIG. 2 is a rear, left side, and top perspective view thereof.
FIG. 3 is a right side elevation view thereof.
FIG. 4 is a front elevational view thereof.
FIG. 5 is a rear elevational view thereof.
Referenced Cited
U.S. Patent Documents
Patent History
Patent number: D256947
Type: Grant
Filed: Jun 13, 1978
Date of Patent: Sep 16, 1980
Assignee: California Screw Corporation (Paramount, CA)
Inventor: Ralph Terrazas (La Mirada, CA)
Primary Examiner: James R. Largen
Attorney: Arthur Freilich
Application Number: 5/915,170
Type: Grant
Filed: Jun 13, 1978
Date of Patent: Sep 16, 1980
Assignee: California Screw Corporation (Paramount, CA)
Inventor: Ralph Terrazas (La Mirada, CA)
Primary Examiner: James R. Largen
Attorney: Arthur Freilich
Application Number: 5/915,170
Classifications
Current U.S. Class:
D23/19
International Classification: D2301;
International Classification: D2301;