Press blocking and air logic control system

Details Press blocking and air logic control system Press blocking and air logic control system

1976-03-22

1977-05-31

Wilhite, Billy J.

Presses

Portable receptacle lid applying

With gathering of contents

72 26, 100 99, 100269R, 100282, 192131R, 425153, B30B 1500

Patent

active

040262049

ABSTRACT:
The press blocking and air logic control system of this invention embodies a press ram blocking apparatus and air logic circuitry and control means in combination for moving a ram blocking member into ram stopping position thereunder upon the occurrence of one or more events justifying blocking of the press ram, to prevent injury or damage to personnel or equipment which would expectedly result from inadvertence, error or accident. The air logic control circuitry for the blocking device is connected to and in association with conventional press circuitry for the press ram actuating mechanism. For normal press operation, the ram blocking member is retained in retracted position by its air logic control circuitry.

REFERENCES:
patent: 2240630 (1941-05-01), Stacy
patent: 2946277 (1960-07-01), Archer
patent: 2962633 (1960-11-01), Raymond
patent: 2990578 (1961-07-01), Adair
patent: 3359598 (1967-12-01), Bucy
patent: 3446106 (1969-05-01), Ferris
patent: 3446985 (1969-05-01), Carlisle
patent: 3452618 (1969-07-01), Nagele
patent: 3541950 (1970-11-01), Anderson
patent: 3554067 (1971-01-01), Scutella
patent: 3628357 (1971-12-01), Luenser
patent: 3650650 (1972-03-01), Cook
patent: 3749005 (1973-07-01), Einecker
patent: 3815456 (1974-06-01), Braathen
patent: 3832875 (1974-09-01), Newman
patent: 3884336 (1975-05-01), Williamson

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