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Pool pump primer

  • US 5,154,821 A
  • Filed: 11/18/1991
  • Issued: 10/13/1992
  • Est. Priority Date: 11/18/1991
  • Status: Expired due to Fees
First Claim
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1. In a pool pumping system having an electric motor driven pump having an impeller and an inlet connected to a pump for drawing water from a pool skimmer for flow through a skimmer drain into a pump water return line to a pump inlet filter and for discharging water through a pool filter and thence into the pool the improvement comprising:

  • a pool skimmer having a vertical height and a skimmer drain opening;

    a portable pool pump primer having a tubular housing having an interior surface;

    a plunger rod movable into and out of said tubular housing respectively through downstrokes and upstrokes;

    said plunger rod having a first end located exteriorly of said tubular housing and a second end located interiorly of said tubular housing;

    a handle connected to said first end of said plunger rod and an imperforate piston connected to said second end of said plunger rod;

    said imperforate piston slidably sealingly engaging the inner surface of said tubular housing;

    said tubular housing having a tapered nose portion on one end thereof defining an outlet from said tubular housing and an enclosure cap on the opposite end thereof;

    a one way outlet valve located within said tubular housing in coaxial alignment with said tapered nose portion operable during the downstroke of said piston within said tubular housing to open and operable during the upstroke of said piston within said tubular housing to close;

    a one way inlet valve on said tubular housing at a point above said one way outlet valve a distance less than the vertical height of the skimmer;

    said one way inlet valve operable during the downstroke of said piston within said tubular housing to close and operable during the upstroke of said piston within said tubular housing to open;

    said tapered nose engageable with the skimmer drain and said plunger rod reciprocable with respect to said tubular housing for drawing fluid from the skimmer into the interior of said tubular housing during an upstroke of the plunger rod and for discharging liquid from the interior of said tubular housing into the pump water return line during the downstroke of the plunger rod so as to prime the pump impeller following replacement and or repair of the pump filter of the pool pumping system.

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