Vacuum manipulation device

Details Vacuum manipulation device Vacuum manipulation device

1999-04-13

2000-03-21

Olszewski, Robert P.

Material or article handling

Elevator or hoist and loading or unloading means therefor

Grab

414737, 414752, 294 641, 901 40, 271103, B66C 102

Patent

active

060395303

ABSTRACT:
A vacuum manipulation device with a lifter hose, which can be connected to a vacuum-generating device, and with a suction gripper device, which can be placed on an object to be manipulated, by means of which the object can be drawn-up and, by contracting the lifter hose, can be lifted. In order to prevent the suction gripper device from snapping upward in case of an unintentional release of a drawn-up object, the manipulation device features a weight-actuable regulating element which, under the effect of the weight of an object drawn by suction against the suction side of the suction gripper device, blocks a flow cross section into the interior of the lifter hose, and unblocks it in the unoccupied state of the suction gripper device.

REFERENCES:
patent: 3734325 (1973-05-01), Stone
patent: 3785691 (1974-01-01), Sperry
patent: 3933388 (1976-01-01), Conboy
patent: 4413853 (1983-11-01), Andersson
patent: 4557659 (1985-12-01), Scaglia
patent: 4858976 (1989-08-01), Stoll
patent: 5221117 (1993-06-01), Messinger et al.
patent: 5330314 (1994-07-01), Bennison
patent: 5375895 (1994-12-01), Volkert
patent: 5431469 (1995-07-01), Ohno et al.
patent: 5816635 (1998-10-01), Jansson

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