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Pre-charged vacuum fluid charge/disposal apparatus

  • US 5,405,247 A
  • Filed: 07/13/1992
  • Issued: 04/11/1995
  • Est. Priority Date: 06/29/1990
  • Status: Expired due to Term
First Claim
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1. A pre-charged, self-contained and self-suctioning apparatus for drawing fluid from a container where external power is not used, said apparatus comprising:

  • a pre-charged canister having an open/close control valve and a high-vacuum check valve for evacuating and capturing a finite volume at a near absolute vacuum over 28 inches of mercury and in the range of 28 to 29.95 inches of mercury in said pre-charged canister;

    a hose having a first end attached to said pre-charged canister through said control valve and a second end for placement into a fluid in the container; and

    means including said control valve, when said control valve is in a vacuum open condition, for releasing the captured and finite vacuum in said precharged canister, the released finite near absolute vacuum self-suctioning fluid from the container through the hose at a substantially constant suction force and into the canister without the use of external power; and

    said apparatus characterized in that the suctioned fluid from the container replaces the near absolute vacuum in the canister by self-suctioning fluid from the container into substantially the entire volumetric capacity of said canister.

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