Piston hand pump for fuel, oil and chemicals

Description

FIG. 1 is a front elevational view of a piston hand pump for fuel, oil and chemicals showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is an elevational view of one side thereof;

FIG. 5 is an elevational view of the other side thereof; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D224594 August 1972 Eves et al.
D253297 October 30, 1979 Digney et al.
2784676 March 1957 Woodward
3034450 May 1962 Kruckeberg
Patent History
Patent number: D308567
Type: Grant
Filed: Nov 10, 1987
Date of Patent: Jun 12, 1990
Assignee: Great Plains Industries, Inc. (Wichita, KS)
Inventors: Frank J. Russold (Wichita, KS), Fred L. Laqua (Wichita, KS)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Attorney: Bill D. McCarthy
Application Number: 7/119,322
Classifications