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Pressure regulator control system

  • US 4,680,441 A
  • Filed: 06/29/1984
  • Issued: 07/14/1987
  • Est. Priority Date: 06/29/1984
  • Status: Expired due to Term
First Claim
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1. A pressure regulator control system for regulating the supply of pneumatic pressure to a welding cylinder from a pressurized air supply in response to at least one electrical control signal, the regulator system comprising:

  • transducer means for establishing a first predetermined output pressure which is continuously variable in response to said at least one control signal, said transducer means having a transducer air inlet in communication with said air supply, and a transducer air outlet,air pilot operated regulator means for establishing a second predetermined output pressure in response to said first predetermined output pressure, said regulator means having a regulator supply inlet in communiation with said air supply, a regulator air inlet in communication with said transducer air outlet and a regulator air outlet,coupling means for connecting said regulator air outlet to said welding cylinder and means for reducing the pressure of air in communication with said transducer air inlet,wherein said regulator means comprises booster means for estblishing said second predetermined output pressure as a discrete multiple of said first predetermined output pressure.

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