Centrifugal suction pump

Details Centrifugal suction pump Centrifugal suction pump

1992-05-14

1993-08-10

Smith, Leonard E.

Pumps

Condition responsive control of pump drive motor

Responsive to accumulation of pumped liquid in receiver

43 45, 43 65, 2395871, 415 25, 415 88, F04D 900, F04D 2918

Patent

active

052343200

ABSTRACT:
A centrifugal suction pump includes a vertically disposed support tube having upper and lower ends, a liquid check valve on the lower end of the support tube, and a hollow rotatable hub mounted on the upper end of the support tube. A number of horizontally expeller tubes are connected to the hub and extend radially therefrom. A check valve is associated with the hub for venting the hub to ambient atmosphere and a priming conduit is connected to the support tube for filing the latter and the expeller tubes with liquid. A stopper is associated with each expeller tube and has an operative position that seals the expeller tube. Rotation of the expeller tubes causes radial displacement of liquid therein which effects movement of the stoppers to an inoperative position at which the tubes are unsealed and liquid is pumped up the support tube.

REFERENCES:
patent: 387138 (1888-07-01), Bruce
patent: 473037 (1892-04-01), Wainwright
patent: 730099 (1903-06-01), Dickie et al.
patent: 873644 (1907-12-01), Wickblom
patent: 882524 (1908-03-01), Latta
patent: 967122 (1910-08-01), Hall
patent: 1016281 (1912-02-01), Lundquist
patent: 1577225 (1926-03-01), Granger
patent: 2319229 (1943-05-01), Harrington
patent: 3519365 (1970-07-01), Conhagen
patent: 4419043 (1983-12-01), Smith
patent: 5042187 (1991-08-01), Bentzley

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