Hand pump

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Description

FIG. 1 is a front elevational view of a hand pump showing a first preferred embodiment of my new design (with the pump plunger in an opened position), the rear being a mirror image;

FIG. 2 is a top plan view of the hand pump of FIG. 1;

FIG. 3 is a bottom plan view of the hand pump in FIG. 1;

FIG. 4 is a front elevational view of the hand pump of FIG. 1 (with the pump plunger in a closed position), the rear being a mirror image; and,

FIG. 5 is a perspective view of the hand pump of FIG. 1 (with the pump plunger in an opened position).

Referenced Cited
U.S. Patent Documents
D157332 February 1950 Bolard
D199440 October 1964 Jones et al.
D295374 April 26, 1988 Crutchlow
4524877 June 25, 1985 Saxby et al.
4723670 February 9, 1988 Robinson et al.
4889250 December 26, 1989 Beyer
Patent History
Patent number: D352900
Type: Grant
Filed: Dec 10, 1991
Date of Patent: Nov 29, 1994
Inventor: Lip Nhan (Shatin, N T, Hong Kong)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Robert M. Spear
Attorney: Steven G. Roeder
Application Number: 7/805,802
Classifications
Current U.S. Class: D/9448; D/9436