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Well pump protection system

  • US 4,180,374 A
  • Filed: 03/07/1978
  • Issued: 12/25/1979
  • Est. Priority Date: 03/07/1978
  • Status: Expired due to Term
First Claim
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1. A well pump protection system comprising a water outlet, a valve within said outlet, a storage tank having water and air connecting serially to said outlet, a pressure gauge connected to said pressure tank remote from said water outlet, and serially upstream, a normal pressure switch having means for allowing water to pass downstream, a low pressure switch provided with means to stop water flow downstream, a timing device connected in parallel to said low pressure switch to act as a time lag sequencing device, a bleeder line disposed proximate to said low pressure switch valve connecting said conduit to a well, a check valve disposed between the normal pressure switch and the low pressure switch permitting fluid flow solely in a downstream direction, a pressure pop off valve located upstream from said low pressure switch, a check valve located upstream from said pressure pop off valve allowing water to only flow downstream, and a submersible motor pump disposed in the well, and a pump motor control and starter connected in series to said low pressure switch and said timing device to activate said motor and pump.

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