Standby water-powered basement sump pump

Details Standby water-powered basement sump pump Standby water-powered basement sump pump

1983-08-22

1985-11-12

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Plural pumps having separate drive motors, supply sources,...

417 41, 417 46, 417405, 418267, F04B 4106, F04B 4900, F04B 1700, F04C 200

Patent

active

045525129

ABSTRACT:
A water-powered positive displacement auxiliary sump pump has a drive water inlet connected to the municipal water supply via a float actuated pilot valve. The pump is designed to be constructed chiefly of molded plastic supported by an exit manifold connected to the discharge line of an existing electrical sump pump. The presently preferred design is a rotary sliding vane pump having drive water and pump water chambers.

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