Apparatus for actuating a suction workholder

Details Apparatus for actuating a suction workholder Apparatus for actuating a suction workholder

1985-09-26

1986-11-25

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Separators

271108, B65H 308

Patent

active

046244565

ABSTRACT:
An improved apparatus for actuating a suction workholder having a hollow piston slidably mounted in a hollow cylinder. A suction cup is mounted on a distal end of the piston and is in pneumatic communication with a proximal end of said piston via the interior of the piston. A housing defining a vacuum plenum is so attached to the cylinder as to permit pneumatic communication between the plenum and the proximal end of said piston. The improvement resides in a unique positioning of ports and apertures which create pneumatic pressure differentials causing movement of the piston. The use of a biasing spring is not required.

REFERENCES:
patent: 3091995 (1963-06-01), Allison
patent: 4505469 (1985-03-01), Kakimoto

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