Jack having the pneumatic air pump functions and using a common

Details Jack having the pneumatic air pump functions and using a common Jack having the pneumatic air pump functions and using a common

1986-01-08

1987-07-07

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Fluid pressure

Vehicle attached

254 1, B66F 324, B60P 148

Patent

active

046781641

ABSTRACT:
A hydraulic jack having an air pumping feature is disclosed. This jack is provided with a common drive motor including an elongated double-ended shaft having respective portions projecting from the motor. The one end of the shaft is connected to first reduction gearing which, in turn, drives a piston of an air pump. The other end of the shaft is connected to a second reduction gearing which, in turn, drives an oil pump of the lifting mechanism of the jack.

REFERENCES:
patent: 1983444 (1934-12-01), Dry
patent: 2034605 (1936-03-01), Carman
patent: 2458590 (1949-01-01), Harris et al.
patent: 3828878 (1974-08-01), Clapsaddle
patent: 4057114 (1977-11-01), Anderson

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