Vacuum lifting arrangement

Details Vacuum lifting arrangement Vacuum lifting arrangement

1987-03-04

1987-11-03

Marbert, James B.

Handling: hand and hoist-line implements

Utilizing fluid pressure

Frames

294 641, B66C 102

Patent

active

047039663

ABSTRACT:
A vacuum lifting arrangement for flat workpieces, such as wooden boards, wooden beams and the like, includes a vertically and horizontally movable housing bounding a suction chamber having a downwardly open suction side. A valve insert is accommodated in the suction chamber and is preferably removably mounted on the housing. A closing plate is hingedly mounted on the housing for pivoting into an out of a closing position in which it sealingly covers the downwardly open suction side of the suction chamber and the valve insert. An elastic sealing element in the form of a foamed mat having suction apertures is mounted on the closing plate, and is operative for sealingly contacting the workpieces to be lifted.

REFERENCES:
patent: 2128200 (1938-08-01), Allen
patent: 3910621 (1975-10-01), Hillier
patent: 4403567 (1983-09-01), da Costa et al.

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