Fully rotatable vacuum lift with self contained utility lines

Details Fully rotatable vacuum lift with self contained utility lines Fully rotatable vacuum lift with self contained utility lines

1992-04-30

1993-06-22

Mitchell, David M.

Handling: hand and hoist-line implements

Utilizing fluid pressure

Venturi effect

414627, B66C 102

Patent

active

052211177

ABSTRACT:
An auxiliary energy source is connected to the manually operated lift head of a vacuum lift system for connection of an accessory. Thus, electrical or compressed air energy is made conveniently available to power a load rotating accessory, a clamp, or the like, preferably by means of feeding a conduit line coaxially within the flexible tubing of the lift system. This is particularly useful to prevent interference or disarray of an auxiliary line that must be manipulated in tandem with the lift head, and is operable with rotary type lift systems that permit 360 degree rotation of the lift head.

REFERENCES:
patent: 2591250 (1952-04-01), Gerber
patent: 3318468 (1967-05-01), Olson
patent: 3884363 (1975-05-01), Ajlouny
patent: 4062485 (1977-12-01), Andersen
patent: 4413853 (1983-11-01), Andersson
patent: 4473923 (1984-10-01), Neroni et al.
patent: 4517404 (1985-05-01), Hughes et al.
patent: 4557659 (1985-12-01), Scaglia
patent: 4683912 (1987-08-01), Dubrosky
patent: 5035456 (1991-07-01), Messinger

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