Jack construction

Details Jack construction Jack construction

1978-08-28

1981-02-17

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Platform type

254DIG1, 254DIG4, B66F 504

Patent

active

042510554

ABSTRACT:
A wheeled jack construction particularly adapted for use in heavy-duty applications is provided. The jack includes a hydraulically operable piston and cylinder unit, a hydraulic fluid pump and a motive means for driving such pump. The unit is self-contained and one embodiment requires no external power source or hose connections. The provided unit may be readily wheeled by hand into place, actuated and removed from a site of use with a minimum of effort. The provided unit is flexible in operation enabling a plurality of motive means to be employed therewith.

REFERENCES:
patent: 2420910 (1947-05-01), Richards
patent: 2836317 (1958-05-01), Oury
patent: 3890684 (1975-06-01), Tallman
patent: 4084791 (1978-04-01), Margueratt
patent: 7810667 (1931-06-01), Larson et al.

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