Piston pump

Description

FIG. 1 is a front view of the piston pump of my design;

FIG. 2 is a rear view of the piston pump of FIG. 1;

FIG. 3 is a bottom view of the piston pump of FIG. 1;

FIG. 4 is a top plan view of the piston pump of FIG. 1;

FIG. 5 is a left elevation of the piston pump of FIG. 1;

FIG. 6 is a right elevation of the piston pump of FIG. 1; and,

FIG. 7 is a perspective view of the piston pump of FIG. 1.

The broken lines in FIGS. 1, 2, 3, 6 and 7 are included for the purpose of illustrating portions of the piston pump that form no part of the claimed design.

Claims

The ornamental design for piston pump, as shown and described.