Electronic control for hydraulic press

Details Electronic control for hydraulic press Electronic control for hydraulic press

1976-12-07

1979-05-01

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Having a signal, indicator or inspection means

60459, 60DIG2, 144281R, 60368, F15B 2102, F15B 2108

Patent

active

041517180

ABSTRACT:
An electronic control device for hydraulic presses for making plywood and the like having electronic computer structure for developing a control for the desired hydraulic pressure having multiple input units on which at least the width, length and unit pressure may be set into the device for automatically effecting the calculation of the required hydraulic line pressure in order to apply the proper pressure upon the laminated plywood panels. The control device also anticipates maximum line pressure and cuts off the hydraulic pump(s) before the desired pressure is reached so that the inertia of the pump(s) and motor(s) will not increase the resultant line pressure above the predetermined desired pressure.

REFERENCES:
patent: 2784754 (1957-03-01), Berthelesen
patent: 2923973 (1960-02-01), Ninneman
patent: 3628330 (1971-12-01), Miller
patent: 3911677 (1975-10-01), Collins

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