Lift apparatus having an articulated double parallelogram boom a

Details Lift apparatus having an articulated double parallelogram boom a Lift apparatus having an articulated double parallelogram boom a

1998-01-29

2000-02-15

Stodola, Daniel P.

Fire escape, ladder, or scaffold

Having transpositioning base and erecting means

And platform elevatable relative to its support

182 27, 182 211, 182141, E06C 100

Patent

active

060241918

ABSTRACT:
A lift apparatus includes a superstructure frame support, a riser, and an articulated parallelogram boom assembly operatively connected between the superstructure frame support and the riser. The articulated parallelogram boom assembly includes a floating frame, a lower parallelogram boom assembly operationally connected between the superstructure frame support and the floating frame, an upper parallelogram boom assembly operationally connected between the floating frame and the riser, and a lift mechanism for raising and lowering the articulated parallelogram boom assembly. The lower parallelogram boom assembly, the upper parallelogram boom assembly, and the lift mechanism are formed such that the maximum extension height of the articulated parallelogram boom assembly is increased without an increase in the height of the articulated parallelogram boom assembly when lowered.

REFERENCES:
patent: 3132718 (1964-05-01), Pierce, Jr.
patent: 3483948 (1969-12-01), Thornton-Trump
patent: 3554319 (1971-01-01), Smith
patent: 3768591 (1973-10-01), Stucky et al.
patent: 4004652 (1977-01-01), Laboy-Alvarado
patent: 4019604 (1977-04-01), Benson
patent: 4053075 (1977-10-01), Stedman
patent: 4431083 (1984-02-01), York
patent: 4624340 (1986-11-01), Astrom et al.
patent: 4679653 (1987-07-01), Pasquarette, Jr. et al.
patent: 4694930 (1987-09-01), Kishi
patent: 4696371 (1987-09-01), Moog
patent: 4757875 (1988-07-01), Hade, Jr. et al.
patent: 4775029 (1988-10-01), MacDonald et al.
patent: 4953666 (1990-09-01), Riding
patent: 5129480 (1992-07-01), Garrett et al.
patent: 5135074 (1992-08-01), Hornagold
patent: 5249643 (1993-10-01), Backer et al.
patent: 5253731 (1993-10-01), Moog
patent: 5427197 (1995-06-01), Waters
patent: 5584356 (1996-12-01), Goodrich
AB46 UpRight, UpRight Self-Propelled and Boom-Supported Lifts (pps. 15-16 of UpRight Marketing Brochure).
SJKB-33N by SKYJACK . . . the new breed!(Marketing Brochure).
Genie Z-30/20N Narrow Self-Propelled Articulating Boom (Marketing Brochure and photographs).

Affiliated with

Also associated with

Rating

Lift apparatus having an articulated double parallelogram boom a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lift apparatus having an articulated double parallelogram boom a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lift apparatus having an articulated double parallelogram boom a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1898480