Pumps – Condition responsive control of pump drive motor – Having timer or delay means
Patent
1993-09-27
1994-10-04
Bertsch, Richard A.
Pumps
Condition responsive control of pump drive motor
Having timer or delay means
417290, 417234, 417279, 417435, 417 44G, 417 448, F04B 4906, F04B 4908
Patent
active
053520963
ABSTRACT:
This invention relates to an air compressor and in particular to one which includes a valve controlling device having a check valve and a cover. The check valve is fixedly mounted on said cover and is connected with a pipe. The check valve including a spring, a ball and a packing with the spring urging said ball against said packing thereby sealing said pipe. The cover is fixedly mounted on a cylinder so that air in said cylinder can flow out of said cover. A passage is formed between said cylinder and said cover and communicated with said check valve, a power breaker, an exhaust valve, and a pressure gauge. The power breaker is fixedly connected with said cover has via a connector and having an adjusting knob, a diaphragm, a main body, and two conducting members. The main body has an interior chamber in which is fitted a piston, the piston receiving a spring and having a protuberance on which is fitted a circular conductor. The spring urges the piston to go forward thereby pushing said circular conductor against the conducting members. An exhaust valve fixedly mounted on said cover and including a thermo-couple and a needle valve. The exhausting device comprises an upper bakelite cover and a lower bakelite cover closedly engaged with the upper bakelite cover. The upper bakelite cover is provided with a locking member and an air outlet. The locking member is fitted with a seal ring and is formed with a hole into which is fitted the needle valve with the lower end contacting a heat sensitive member.
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Bertsch Richard A.
Korytnyk Peter
Lei Alfred
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