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Electromagnetic ball valve

  • US 4,511,118 A
  • Filed: 04/25/1983
  • Issued: 04/16/1985
  • Est. Priority Date: 08/21/1982
  • Status: Expired due to Fees
First Claim
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1. An electromagnetic ball valve for a flow medium under pressure, comprising an exterior cylindrical sheath having an opening at each end, an upper and a lower pole piece having aligned axial bores opened at each of their outer ends and being spaced apart at their inner ends arranged within said sheath, the inner ends being spaced apart to define a ball guideway therebetween, an abutment defined at the lower end of the upper pole piece axial bore and a seat defined at the upper end of the lower pole piece axial bore, a ball positioned in said guideway between said abutment and said seat, said guideway including a space around said ball, said upper pole bore having an always open communication passage connecting said bore to the space surrounding said ball, an upper and a lower magnet coil disposed around respective upper and lower poles, said ball being movable in said guideway between said seat and said abutment under the control of said coils.

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