Foot pumps

Details Foot pumps Foot pumps

1978-05-12

1980-12-30

Freeh, William L.

Pumps

Expansible chamber type

Moving cylinder

417903, F04B 1902

Patent

active

042420601

ABSTRACT:
A foot pump comprises a base member and an operating member pivotally connected to the base member. A piston-and-cylinder assembly is connected between the members. In use the user depresses the operating member with his or her foot, thereby causing air to be compressed in and expelled from said assembly. A return spring incorporated in said assembly returns the operating member to its raised position. The assembly can be disconnected from the base member and connected to the base member again, at will, and the whole is so arranged that when the assembly is disconnected from the base member the pump can assume a storage position in which the operating member is in a depressed position and the return spring is not loaded, or at least not significantly loaded.

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