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SAFETY VALVE FOR OIL FILLED CABLE

  • US 3,719,203 A
  • Filed: 10/13/1971
  • Issued: 03/06/1973
  • Est. Priority Date: 10/13/1971
  • Status: Expired due to Term
First Claim
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1. An oil pressure valve for oil filled cables comprising:

  • a container having a rigid outer wall, an inner flexible pressure cell having a moveable wall, and an oil chamber between said moveable inner cell wall and rigid outer wall, said moveable inner wall moving inwardly and outwardly in accordance with the volume of oil in said chamber;

    a valve mounted in an opening through said outer wall to control the flow of oil;

    an output pipe connected to said valve on said outer wall; and

    actuating means connected between said cell wall and valve to close said valve upon a predetermined movement of said cell wall in accordance with said oil volume to stop the flow of oil between said oil chamber and output pipe.

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