Handling: hand and hoist-line implements – Utilizing fluid pressure – Venturi effect
Patent
1983-08-22
1985-12-31
Marbert, James B.
Handling: hand and hoist-line implements
Utilizing fluid pressure
Venturi effect
B66C 102
Patent
active
045616868
ABSTRACT:
A flexible bag-like enclosure is carried by a movable arm so that it may be suitably located at any desired position and selectively raised and lowered as desired. A fitting is coupled to the opening of the bag-like enclosure and connected by a length of flexible hose to a source of low-pressure fluid under the control of a selectively actuable valve. The bag-like enclosure includes a substantial quantity of relatively dense, particulate material. A lower surface of the bag-like enclosure has a plurality of openings of a size substantially less than that of the individual particulate members so that they will be retained within the enclosure.
The bag-like enclosure is rested on an object to be moved such that the enclosure lower wall will conform to the surface of the object. Then the interior of the enclosure is reduced to a low fluid pressure condition which causes the lower wall of the enclosure and immediately adjacent particulate matter to become rigid and conform about the object which provides the desired gripping effect on the object.
REFERENCES:
patent: 3245710 (1966-04-01), Begemann
patent: 3354856 (1967-11-01), Annibale
patent: 4049484 (1977-09-01), Priest et al.
patent: 4294424 (1981-10-01), Teissier
Monthly Report on the Use of Robots--Jul. 1981.
Marbert James B.
Netter George J.
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