Top cover clamp for screening machine

Details Top cover clamp for screening machine Top cover clamp for screening machine

1991-09-27

1993-02-16

Valenza, Joseph E.

Classifying, separating, and assorting solids

Sifting

Elements

209372, 292 45, 292201, 292256, 248500, 248638, 1988605, B07B 100

Patent

active

051863332

ABSTRACT:
Disclosed is a clamp for securing the top cover of a screening machine. Clamping is not subject to galling or seizing and the force exerted is not temperature or displacement dependent. The clamp is air pressure operated, with super-atmospheric pressure being applied for clamping and venting to atmosphere or sub-atmospheric pressure being applied to release the clamp. The clamp is mounted for easy swing away movement when not in use so as to permit the top cover to be removed. Multiple clamps may be simultaneously operated from a common manifold.

REFERENCES:
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patent: 2767011 (1956-10-01), Buckley
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patent: 3433357 (1969-03-01), Nolte
patent: 3481076 (1969-12-01), Bedard
patent: 3856338 (1974-12-01), Johnsson
patent: 4093176 (1978-06-01), Contastin
patent: 4230023 (1980-10-01), Ward
patent: 5150796 (1992-09-01), Pierson

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