Pump

FIG. 1 is a front perspective view of a first embodiment of a pump according to my new and ornamental design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a left elevation view thereof;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof.

FIG. 9 is a front perspective view of a second embodiment of a pump according to my new and ornamental design;

FIG. 10 is a rear perspective view thereof;

FIG. 11 is a rear elevation view thereof;

FIG. 12 is a front elevation view thereof;

FIG. 13 is a right elevation view thereof;

FIG. 14 is a left elevation view thereof;

FIG. 15 is a top plan view thereof; and

FIG. 16 is a bottom plan view thereof.

FIG. 17 is a front perspective view of a third embodiment of a pump according to my new and ornamental design;

FIG. 18 is a rear perspective view thereof;

FIG. 19 is a rear elevation view thereof;

FIG. 20 is a front elevation view thereof;

FIG. 21 is a right elevation view thereof;

FIG. 22 is a left elevation view thereof;

FIG. 23 is a top plan view thereof; and,

FIG. 24 is a bottom plan view thereof.

The dash-dot broken lines illustrate the boundaries of the claimed design and form no part of the claim. The broken lines outside the boundaries illustrate portions of the pump that form no part of the claimed design.