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Apparatus for delivery of a liquid

  • US 5,115,842 A
  • Filed: 08/30/1990
  • Issued: 05/26/1992
  • Est. Priority Date: 08/30/1990
  • Status: Expired due to Term
First Claim
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1. An apparatus for delivery of a liquid, comprising:

  • (a) a housing;

    (b) a cradle for holding a container containing the liquid, wherein the cradle is rotatably coupled to the housing, wherein the cradle is rotatable between a first position and a second position;

    (c) a reservoir for receiving the liquid from the container, wherein the reservoir is coupled to the cradle and rotates with the cradle, and wherein the reservoir includes;

    (1) a passageway through the reservoir through which the liquid is able to flow downward for all positions between the first and second positions, inclusive, that the cradle is permitted to rotate to;

    (2) a means for minimizing back flow of the liquid from the reservoir to the container;

    (3) a first orifice for allowing the liquid to pass out of the reservoir;

    (4) a second orifice for allowing an air bubble in the liquid to return to the reservoir, wherein the second orifice is at a location higher relative to the first orifice for all positions that the cradle is permitted to rotate to; and

    (5) a check valve for allowing air to pass into the reservoir when the liquid flows through the passageway into the first orifice.

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