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US 4,281,968 AGranted
Water storage and pumping system
OwnerFrancis A. Akersinventor
Life of this patent
Estimating the term…
Abstract
A water storage and pumping system with a motor control for the pump, which is responsive to storage tank pressure and comprises an analog pressure tank and a low pressure responsive valve to admit water from the storage tank service line to the pressure tank and a high pressure responsive valve which allows the pressure tank to drain through a time delay bleed valve. A pressure responsive electrical switch senses the pressure tank pressure and controls operation of the pump.
Claims4
A pressure responsive motor control system comprising:
- at least one electrical motor;
- a source of electrical power;
- pressure responsive switching means interconnecting the motors and the source of electrical power;
- first and second oppositely operating pressure responsive fluid valves, each having fluid inputs and outputs;
- a source of fluid pressure connected in parallel to the said pair of valves and to the input of the first valve;
- at least one pressure tank;
- means interconnecting the tanks to the output of the first valve including a reverse flow check valve;
- drain means connected to the tank, including at least one bleed valve and the second valve;
- and
- conduit means interconnecting the tank and the switching means.
7 more elements
A water storage and pumping system comprising:
- an elevated storage tank;
- a source of water;
- electric pump means having an output and interconnecting the water source and the storage tank;
- a pressure tank;
- first pressure responsive valve means interconnecting the pressure tank and the pump output;
- pressure tank drain means connected to the pressure tank, including selectively operable bleed valve means and second pressure responsive valve means connected to the pump output;
- pressure responsive switching means connected to the pressure tank and electrically connected to the pump means.
4 more elements
Dependencies are inferred from the claim text.