Pumps – Condition responsive control of pump drive motor – By controlling drive motor motive fluid
Patent
1983-05-25
1985-05-07
Croyle, Carlton R.
Pumps
Condition responsive control of pump drive motor
By controlling drive motor motive fluid
417199A, 417200, 417360, 417390, 415185, 415206, F04B 4904, F04B 2308
Patent
active
045155178
ABSTRACT:
A well point pumping system including a series of well points installed in an area of the ground which is to be dewatered or dried out. This system and its apparatus include an enclosed tank which can be located closely adjacent the well points which are often in a dirty, wet and/or remote area which often has difficult access. Also, the dewatering areas may be located at different levels below the ground surface. Usually the apparatus is subjected to severe abuse from handling, being moved about or from other machinery in the area. Furthermore, it may be difficult to install or remove the apparatus. The present system and apparatus include an enclosed tank which is capable of withstanding abuse and which can be located in the dirty working area and remotely from its power source. The tank encloses an impeller type water pump assembly, and also encloses a vacuum pump and its drive motor which create the required vacuum in the tank to cause water to be inducted into the tank from the well points. The pump assembly within tank is disposed with its axis in a vertical direction with the pump eye opening upwardly so that water can flow by gravity into the pump eye. The pump assembly includes an impeller, its shaft, a fluid motor attached to and for driving the shaft and impeller, and a mounting plate for enabling the entire pump assembly to be removed from the tank as a unit. The assembly does not require any close tolerances or adjustments for its installation. A control valve is provided for turning the vacuum pump on or off and for also regulating the speed of the pump, the valve being actuated by a water level float control in the tank. The power source for the system and apparatus can be located geographically remotely from the tank and away from the dirty working area where it is not subjected to abuse.
REFERENCES:
patent: 1981965 (1934-11-01), Morgan
patent: 1995812 (1935-03-01), Noble
patent: 2124681 (1938-07-01), Jauch et al.
patent: 2297001 (1942-09-01), La Bour
patent: 2675762 (1954-04-01), Share
patent: 2730955 (1956-01-01), Share
patent: 2925952 (1960-02-01), Garve
patent: 3910728 (1975-10-01), Sloan
Croyle Carlton R.
Cuomo Peter M.
Nilles James E.
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