Device for raising and lowering elongated support structures

Details Device for raising and lowering elongated support structures Device for raising and lowering elongated support structures

1993-08-16

1995-08-08

Foss, J. Franklin

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Tilts relative to base

248514, B66C 2306

Patent

active

054388058

ABSTRACT:
A device for raising and lowering a pole or other elongated support structure has a stand on which the elongated support structure is mounted. The stand is pivotally connected to a base. An actuator, such as an hydraulically actuated cylinder, raises and lowers the elongated support structure by the use of a control rod which is connected to the stand and to the actuator, and which traverses to cause the stand to pivot relative to the base to raise and lower the support structure.

REFERENCES:
patent: 3322378 (1967-05-01), Thompson
patent: 3778940 (1973-12-01), Blecken
patent: 3992831 (1976-11-01), Bukovitz
patent: 4088289 (1978-05-01), Wood
patent: 4297815 (1981-11-01), Moro
patent: 4616454 (1986-10-01), Ballachey
patent: 4903442 (1990-02-01), Trommem
patent: 5058336 (1991-10-01), Jenvey
patent: 5269107 (1993-12-01), Klemm

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