Power boom and vacuum hose support

Details Power boom and vacuum hose support Power boom and vacuum hose support

1977-10-03

1979-05-01

Ridgill, Jr., James L.

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Fluid pressure actuated

212 8R, 414680, 74 54, E04H 1234, F16H 2508

Patent

active

041516885

ABSTRACT:
A horizontally rotatable and vertically elevatable power boom is disclosed. The boom includes a link providing increased lifting torque about the boom hinge pin and the boom assembly is designed for minimizing the head room requirements for the vacuum machine without sacrificing payload capacity. The link also permits the boom to be locked down hydraulically for traveling.

REFERENCES:
patent: 2153885 (1939-04-01), Goldberg et al.
patent: 2408387 (1946-10-01), Gay et al.
patent: 2885906 (1959-05-01), Cupedo
patent: 3329290 (1967-07-01), Lowery

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