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Portable water filter and valve assembly

  • US 5,558,762 A
  • Filed: 05/26/1994
  • Issued: 09/24/1996
  • Est. Priority Date: 07/19/1991
  • Status: Expired due to Term
First Claim
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1. A valve assembly in combination with a portable water filter, comprising:

  • a portable hand-held filter housing;

    an inlet conduit for directing water into a water filter within said housing;

    means for drawing water through the inlet conduit;

    a check valve operatively connected to the inlet conduit for allowing flow of water only in a direction toward the water filter; and

    a relief valve for redirecting water if pressure within the filter increases beyond a predetermined level, the water being redirected back down the inlet conduit to confine the location of the redirected water to keep outer surfaces of the filter dry and free of contamination, the increased pressure resulting from the filter being clogged or from the flow of water through the filter being otherwise obstructed.

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