Pressure regulator control system

Details Pressure regulator control system Pressure regulator control system

1984-06-29

1987-07-14

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

60368, 219 89, B23K 1110

Patent

active

046804412

ABSTRACT:
A pressure regulator control system for controlling the pressure with which welding electrodes are engaged against a workpiece comprises a transducer for establishing a first regulated fluid outlet pressure proportional to the strength of an electrical signal delivered to the transducer, and a pressure regulator or booster relay for establishing a second regulated outlet fluid pressure which is a multiple of said first outlet pressure. The outlet of the pressure regulator or booster relay is then applied to the working cylinder controlling displacement of the electrodes. The control system of the preferred embodiment includes interface means for converting digital data received from a computerized control apparatus to an analog signal which is applied to the transducer. A pressurized air supply is connected to the fluid inlets of the transducer and the pressure regulator or booster relay through a filter for eliminating contaminants which can affect the operation of the transducer and pressure regulator or booster relay.

REFERENCES:
patent: 3497660 (1970-02-01), Henry-Biabaud
patent: 4317980 (1982-03-01), Goodrich et al.
patent: 4447700 (1984-05-01), Cohen
patent: 4503312 (1985-03-01), Nakata et al.

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