System for immobilizing a plywood press platen during a press cy

Details System for immobilizing a plywood press platen during a press cy System for immobilizing a plywood press platen during a press cy

1984-02-23

1985-02-19

Wilhite, Billy J.

Presses

Automatic or material triggered control

Of actuating means

100 93P, 100195, 100269R, 156358, B30B 1516

Patent

active

044998210

ABSTRACT:
A system for securing the thrust platen of a plywood press against movement during a panel pressing cycle to avert over compression of the panels being cured. An initial fluid circuit pressurizes the press cylinder. A timer terminates the first fluid circuit and establishes a fluid locking circuit which includes a valve assembly which may be coupled to a platen appendage so as to sense platen movement. Pressurized fluid is regulated to and from the press cylinder by the valve assembly to maintain desired platen position.

REFERENCES:
patent: 4151718 (1979-05-01), Gravely
patent: 4367115 (1983-01-01), Bohn

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