Accumulator

Details Accumulator Accumulator

1987-06-10

1989-01-17

Marcus, Stephen

Communications: electrical

Condition responsive indicating system

Specific condition

138 31, 303115, 340 52C, 340686, G08B 2100, F16K 3700

Patent

active

047990481

ABSTRACT:
An accumulator has a piston axially slidably disposed in a cylinder mounted in a casing, the cylinder and the piston jointly defining a reservoir communicating with an inlet/outlet port in the casing. A piston rod axially movably disposed in the casing has an end slidably fitted in the cylindrical hole of the piston. The piston rod is normally urged by a spring to force the piston into the reservoir. The accumulator also includes a switch mechanism for detecting the position of the piston in the cylinder. The switch mechanism may comprise a reed switch, a light-sensitive switch, a pressure-sensitive switch, or a pushbutton switch.

REFERENCES:
patent: 1077472 (1913-11-01), Hofmann
patent: 1952916 (1934-03-01), Etten
patent: 2612419 (1952-09-01), Reynolds
patent: 3248879 (1966-05-01), Natho
patent: 3893486 (1975-07-01), Meyers
patent: 3896280 (1975-07-01), Blake
patent: 4014213 (1977-03-01), Parquet
patent: 4207563 (1980-06-01), Soupal
patent: 4243856 (1981-01-01), Gratzmuller
patent: 4441860 (1984-04-01), Tsujimoto
patent: 4617806 (1986-10-01), Sakai et al.

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