Suction-type gripping mechanism with magnetic actuated vent valv

Details Suction-type gripping mechanism with magnetic actuated vent valv Suction-type gripping mechanism with magnetic actuated vent valv

1986-02-24

1987-06-23

Cherry, Johnny D.

Handling: hand and hoist-line implements

Utilizing fluid pressure

Venturi effect

251 65, 414627, 414752, B25J 1506, B66C 102

Patent

active

046747842

ABSTRACT:
In a suction-type gripping mechanism having an extensible arm with a suction cup attached to the end thereof for gripping and moving non-porous articles, and a vent hole leading to the interior of the suction cup for breaking the suction when desired, an improved valve mechanism for opening and closing the vent hole, the mechanism comprising a movable valve member mounted on the extensible arm and associated with the vent hole at a location remote from the suction cup, the valve member being movable between a first position where it closes the vent hole and a second position where it opens the vent hole, the valve member being made of a magnetically permeable material; a spring biasing the valve member toward the first position; and a permanent magnet located adjacent the path of movement of the valve member for magnetically overcoming the force of the spring biasing and moving the valve member to the second position when the valve member is adjacent the permanent magnet.

REFERENCES:
patent: 2672827 (1954-03-01), McGowen
patent: 2915201 (1959-12-01), Calehuff et al.
patent: 3334655 (1967-08-01), Eppendahl
patent: 3625473 (1971-12-01), Ignatjev
patent: 3834558 (1974-09-01), Bru
IBM Technical Disclosure Bulletin, vol. 20, No. 7, Dec. 1977, "Magnetically Keyed Air Cylinder" by Gates.

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