Circuitry for operating an extendible boom and a service line

Details Circuitry for operating an extendible boom and a service line Circuitry for operating an extendible boom and a service line

1983-07-22

1985-04-16

Chambers, A. Michael

Fluid handling

Systems

Articulated or swinging flow conduit

91 44, 91 45, 141387, 414718, F16L 300, F15B 1526

Patent

active

045109710

ABSTRACT:
A hydraulic circuit for selectively extending and retracting a mobile telescoping boom assembly and for independently extending and retracting an articulated pipe service line mounted on the boom assembly. The circuit can be used with a hydraulic ram to extend and retract the boom assembly or a winch and cable arrangement can be used. A pair of winches are used to extend and retract the articulated service line.

REFERENCES:
patent: 2715912 (1955-08-01), Cameron et al.
patent: 3032082 (1962-05-01), Vilain
patent: 3087636 (1963-04-01), Weaver
patent: 3654833 (1972-04-01), Griffiths
patent: 3668973 (1972-06-01), Kado et al.
patent: 3851766 (1974-12-01), Gill et al.
patent: 3895779 (1975-07-01), Cassez et al.
patent: 4269239 (1981-05-01), Haley
patent: 4391297 (1983-07-01), Knight
patent: 4468166 (1984-08-01), Jameson

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