Bellows latching mechanism for a submersible pump

Details Bellows latching mechanism for a submersible pump Bellows latching mechanism for a submersible pump

1984-02-10

1986-04-22

Croyle, Carlton R.

Pumps

Motor driven

Electric or magnetic motor

417424, 310 87, F04B 1700

Patent

active

045839239

ABSTRACT:
A pressure compensator for a submersible pump has features to prevent damage while lowering the pump into the well. The pressure compensator includes a bellows located below the pump. A retainer will mechanically retain the bellows in a position other than its maximum lubricant volume position while lowering the pump assembly into the well. Once the motor begins operation, the retainer will release the bellows for normal movement. The retainer includes a linkage member that is connected to the top of the bellows and extends upwardly to the drive shaft. A latching device latches the linkage member to the drive shaft. A reverse threaded portion in the latching device unscrews the latching device from the linkage member once the motor begins to rotate.

REFERENCES:
patent: 30382 (1980-08-01), Mandell
patent: 2404783 (1946-07-01), Blom
patent: 2674194 (1954-04-01), Arutunoff
patent: 2674702 (1954-04-01), Arutunoff
patent: 2739252 (1956-03-01), Patterson et al.
patent: 2790916 (1957-04-01), Hinman
patent: 2962612 (1960-11-01), Lung
patent: 3135884 (1964-06-01), Luenberger
patent: 3255367 (1966-06-01), Schaefer
patent: 3947709 (1976-03-01), Waltman
patent: 4425087 (1984-01-01), Gould
patent: 4436488 (1984-03-01), Witten
patent: 4477235 (1984-10-01), Gilmer et al.
patent: 4492523 (1985-01-01), Knox

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