One-piece pumping device with ambivalent operation

Details One-piece pumping device with ambivalent operation One-piece pumping device with ambivalent operation

1978-11-06

1980-10-21

Croyle, Carlton R.

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

417 62, 417238, 417350, F04B 2304, F04B 4902

Patent

active

042291429

ABSTRACT:
A single motor 25 simultaneously drives two pump elements mounted on its shaft ends. The hydraulic circuit, the motor and the pump elements are contained within a one-piece 3-part assembly comprising a central part 2 placed between two end parts 1 and 3. It is merely necessary to change the relative orientation of one of the end parts, the movable part 1, through 180.degree. in order to couple the two pump elements in series or in parallel as required. The pumping device operates immersed.
Suitable for several applications to meet domestic and light industrial requirements.

REFERENCES:
patent: 2687693 (1954-08-01), Hudson
patent: 2814254 (1957-11-01), Litzenberg
patent: 3102483 (1963-09-01), Najimian et al.
patent: 3228587 (1966-01-01), Segebrecht
patent: 3347168 (1967-10-01), Nixon
patent: 3410218 (1968-11-01), Fivel
patent: 3500755 (1970-03-01), Gibson
patent: 4132504 (1979-01-01), Fitch

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