Telescopic cylinder automatic synchronizer

Details Telescopic cylinder automatic synchronizer Telescopic cylinder automatic synchronizer

1978-11-06

1980-05-06

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Condition responsive control of motive fluid flow

60464, 60486, 91168, 92152, F15B 1516

Patent

active

042010535

ABSTRACT:
A telescoping hydraulic cylinder apparatus for elevator application, wherein telescoping cylinders and a piston rod extend or retract simultaneously, having a compensator pump for automatically replenishing fluid lost due to leakage from the upper cylinders of the apparatus.

REFERENCES:
patent: 165472 (1875-07-01), Brinckerhoff
patent: 172896 (1876-02-01), Stebins
patent: 1853147 (1932-04-01), Reynolds
patent: 4043428 (1977-08-01), White et al.

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