System for operation of a direct drive dual drum winch

Details System for operation of a direct drive dual drum winch System for operation of a direct drive dual drum winch

1983-05-27

1985-11-26

Levy, Stuart S.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

60444, 254282, 254315, 254377, B66D 108

Patent

active

045550921

ABSTRACT:
For use in service and maintenance of oil and gas (or water) wells, a system for operating a truck mounted direct drive dual drum winch. Each drum is independently driven by a direct coupled radial piston hydraulic motor. The system includes an improved source of hydraulic power connected to the drum motors through improved piping and valving for selection of drum functions (raise or hoist, lower or drop, or free fall). The system also includes an improved control panel, movable and positionable by the operator for precise and safe control of selected drum functions using pneumatic power.

REFERENCES:
patent: 1139944 (1915-05-01), Wilson et al.
patent: 2316926 (1943-04-01), Willett
patent: 2643093 (1953-06-01), Province
patent: 2943511 (1960-08-01), Wilson
patent: 3462125 (1969-08-01), Gollwitzer et al.
patent: 3750406 (1973-08-01), Verlinde et al.
patent: 4078667 (1978-03-01), Navarro
patent: 4194867 (1980-03-01), Bragg
patent: 4432532 (1984-02-01), Overholt

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