Vacuum lifting plate with suction passageway ball valves

Details Vacuum lifting plate with suction passageway ball valves Vacuum lifting plate with suction passageway ball valves

1998-11-24

2000-03-21

Olszewski, Robert P.

Material or article handling

Elevator or hoist and loading or unloading means therefor

Grab

414416, 414662, 294 641, B66C 102

Patent

active

06039529&

ABSTRACT:
An apparatus for lifting and moving articles, comprising at least one arrangement with a vacuum chamber, which is connected to an arrangement which is capable of producing negative pressure in the vacuum chamber, the underside of a lower plate being provided with an elastic airtight bottom and also being provided with a number of first through-passages to the vacuum chamber.

REFERENCES:
patent: 715905 (1902-12-01), Tuck et al.
patent: 2903290 (1959-09-01), Morris et al.
patent: 3207325 (1965-09-01), Whallon et al.
patent: 3754751 (1973-08-01), Capetti et al.
patent: 4692575 (1987-09-01), Eberle
patent: 5024574 (1991-06-01), Wilson et al.
patent: 5409347 (1995-04-01), Suzuki

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