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Pump band

  • US 5,509,423 A
  • Filed: 12/28/1993
  • Issued: 04/23/1996
  • Est. Priority Date: 12/28/1993
  • Status: Expired due to Fees
First Claim
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1. A pneumatic pump assembly including,support means,pump means formed in said support means,an inlet valve in said support means for selectively admitting fluid into said pump means,said inlet valve adapted to be self-sealing when pressure is applied to said pump means whereby fluid in said pump means is not passed through said inlet valve,a pressure relief valve in said support means to selectively pass fluid therethrough from said pump means,bladder means mounted in said support means,said bladder means connected to receive fluid from said pump means and be inflated thereby when pressure is applied to said pump means, andsensor means mounted to said bladder means such that the positional orientation of said sensor means is dependent upon the inflation level of said bladder means.

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