Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver
Patent
1989-09-29
1990-08-14
Rivell, John
Pumps
Condition responsive control of pump drive motor
Responsive to accumulation of pumped liquid in receiver
137565, 137376, F04B 4904
Patent
active
049483404
ABSTRACT:
An above-ground storage system, especially for use with hazardous materials is disclosed. The system includes a first inner tank and a second outer tank. An air-operated diaphragm pump is used to fill the tank. In order to prevent overfilling of the tank and, therefore environmental contamination, a valve is installed in the air supply line to the air pump. The valve is operated by a float within the tank. When the float becomes submerged in liquid the valve is closed by an arm connected to the float.
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Cla-Val Co. (Newport Beach, Calif.) Advertising Brochure, Model CF1-C1 Float Control, date unknown.
Graco Inc. (Minneapolis, Minn.) Instructions-Parts List, Model 221-139, Series A, Double-Diaphragm Pump, date unknown.
"Other Known Similar Above-Ground Storage Systems".
"Safe-T-Tank Corp.," Advertising Brochure, (portions dated Mar. 1, 1989).
"Introducing the Agape Above Ground Waste Oil Recovery System," (dated only by postmark, Jun. 7, 1989).
"Rely on Use for Liquid Storage," Reliance Tank (undated).
Facsimile from Doehrman Company, Inc., May 9, 1989.
Uniform Fire Code, 1985 Edition, pp. 203-278.
Solomon Stuart G.
Whitman David C.
LRS, Inc.
Rivell John
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