Vacuum lifter

Details Vacuum lifter Vacuum lifter

1975-09-05

1977-05-17

Cherry, Johnny D.

Handling: hand and hoist-line implements

Utilizing fluid pressure

Venturi effect

B66C 102

Patent

active

040238458

ABSTRACT:
A vacuum lifter in the form of a pair of saucer-shaped clamps securing between them a segmented, resilient, thin metal sealing ring surrounding a vacuum chamber defined in the underside of the lifter. The clamping surfaces of the lifter are angularly disposed in such a way that the sealing ring engages the surface of a part to be lifted at a shallow angle. Suction is applied to the underside of the lifter creating a vacuum which draws the sealing ring segments together into substantially airtight formation around the lifter vacuum chamber sealing the underside of the lifter from atmosphere and causing the lifter to adhere to the surface engaged thereby while the part is lifted and conveyed from one location to another.

REFERENCES:
patent: 3307869 (1967-03-01), Warfel
patent: 3627369 (1971-12-01), Nixon
patent: 3863969 (1975-02-01), Weiss et al.
patent: 3910620 (1975-10-01), Sperry

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