Work holders – With fluid means – Vacuum-type holding means
Patent
1989-02-27
1990-01-09
Watson, Robert C.
Work holders
With fluid means
Vacuum-type holding means
B25B 1100
Patent
active
048922960
ABSTRACT:
A suction table assembly utilizes a member having a hollow interior with open top and bottom horizontal ends. A partition arrangement is disposed in the interior of the member to partition the member interior into a plurality of cubicles having hollow interiors, each cubicle having open top and bottom horizontal ends respectively flush with the top and bottom ends of the member. A flat perforated horizontal plate overlies the member and is connected to the top ends of all of the cubicles, the perforations in the plate communicating with the interiors of the underlying cubicles. The perforations have like areas and are regularly spaced. A suction producing device producing suction forces is disposed below the bottom ends of the member. A shutter mechanism disposed between and connected to the bottom ends of the cubicles and the suction producing device applies the suction forces to the interiors of the cubicles. The shutter mechanism has a plurality of different suction distributing positions, the amount of suction force applied to each cubicle interior varying in accordance with each different suction distributing position.
REFERENCES:
patent: 2572640 (1951-10-01), Lovegrove
patent: 2895706 (1959-07-01), Blatherwick
patent: 3910621 (1975-10-01), Hillier
patent: 4131267 (1978-12-01), Ono et al.
patent: 4504045 (1985-03-01), Kenbo et al.
Jay Theodore C.
SSMC Inc.
Watson Robert C.
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