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US 6,419,468 B1Granted
Reciprocating siphon suction pump
OwnerJohn M. Kempinventor
Life of this patent
Estimating the term…
Abstract
A container includes an integral outlet tube that functions as a cylinder. A siphon mechanism including an elongated tube with a flexible seal on the outside surface of the tube functions as a piston. Fluid trapped inside the cylinder by a check valve is forced up and over the side of the container by downward movement of the piston inside the cylinder initiating the siphoning of further fluid from inside the container.
Claims9
A device for initiating siphoning action to remove fluid from a fluid reservoir, comprising:
- a reservoir containing a fluid having at least a bottom section and side sections;
- an outlet tube connected to a fluid side of said reservoir and having an open first end and an open second end, said first open end located in a position to take suction from said bottom section of said reservoir;
- and
- an inlet check valve located inside said outlet tube adjacent said first open end, such that fluid can flow from said reservoir into said outlet tube;
- a siphon mechanism comprising a hollow tube with a suction portion having a length greater than a distance between said bottom section and a top extent of said side sections of said reservoir, a middle portion and a discharge portion having a length greater than said suction portion;
- and
- a discharge check valve located in said siphon mechanism, such that fluid can flow from the suction portion towards the discharge portion;
- and
- a flexible piston, attached to an outside surface of said siphon mechanism positioned at one end of said suction portion opposite said middle section;
- wherein an airtight seal is formed between the outlet tube and siphon mechanism when said suction potion of the siphon mechanism is inserted into said second open end of said outlet tube and further downward movement of the siphon mechanism initiates a siphoning action to draw fluid from said reservoir up the suction portion, through the middle portion and down said discharge portion expelling said fluid from the reservoir.
7 more elements
A method for siphoning fluid from a container having at least a bottom section and side sections;
- and equipped with an outlet tube connected to a fluid side of said container and having an open first end and an open second end, said first open end located in a position to take suction from said bottom section of said container;
- and an inlet check valve located inside said outlet tube adjacent said first open end, such that fluid can flow from said reservoir into said outlet tube comprising the steps;
- providing a siphon mechanism comprising a hollow tube with a suction portion having a length greater than a distance between said bottom section and a top extent of said side sections, a middle portion and a discharge portion having a length greater than said suction portion;
- and a discharge check valve located in said siphon mechanism, such that fluid can flow from the suction portion towards the discharge portion;
- and
- a flexible piston, attached to an outside surface of said siphon mechanism positioned at one end of said suction portion opposite said middle section;
- inserting said flexible piston into said open second end of outlet tube;
- moving siphon mechanism downward.
5 more elements
Dependencies are inferred from the claim text.