Sump pump assembly

Details Sump pump assembly Sump pump assembly

1976-01-02

1977-05-03

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

415201, F04B 4900, F01D 2100, F01B 100

Patent

active

040211452

ABSTRACT:
A modular sump pump assembly is disclosed that consists of three components--a base module, a power module and a switch module. The base module includes the pump casing and is adapted to be connected to the piping that is utilized for discharging the liquid from the sump. The power module, which comprises the pump impeller, the motor, the connecting drive shaft and related parts can be inserted at the pump impeller end into and removed from the base module by means of a bayonet-type joint so that servicing of the power module can be performed merely by twisting the power module relative to the base module to disconnect the bayonet-type joint, after which the power module can be lifted from the sump. The switch module is connected to the power module so that it also can be serviced merely by removal of the power module from the base module and then, if desired, disconnected from the power module.

REFERENCES:
patent: 1883266 (1932-10-01), Yoder
patent: 2251807 (1941-08-01), Ruthman
patent: 2309670 (1943-02-01), Ruthman
patent: 2525370 (1950-10-01), Pollak
patent: 2918016 (1959-12-01), Olson
patent: 3227087 (1966-01-01), Albee et al.
patent: 3335668 (1967-08-01), Thon
patent: 3407739 (1968-10-01), Myers
patent: 3779670 (1973-12-01), Crisafolli

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