Liquid suction device

Details Liquid suction device Liquid suction device

2007-11-20

2007-11-20

Keasel, Eric (Department: 3753)

Fluid handling

Liquid level responsive or maintaining systems

Control of outflow from tank

C137S398000, C137S588000, C222S464400

Reexamination Certificate

active

11060770

ABSTRACT:
A liquid suction device for sucking liquid contained in a vessel is described herein. A liquid retention room having an inflow port and an exhaust port is inserted into the vessel via an opening at an upper part of the vessel and is dipped in the liquid. A suction tube connected to the exhaust port extends from the opening of the vessel. A float member provided in the liquid retention room is enabled to open and close the exhaust port. The liquid is retained in the liquid retention room when the retention room is dipped in the liquid and the float member is floated upward so as to open the exhaust port. The retained liquid is exhausted from the inflow port when the liquid is lessened to reach a predetermined volume or below, and the exhaust port is closed by the float member.

REFERENCES:
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patent: 2985423 (1961-05-01), Tischler et al.
patent: 3217761 (1965-11-01), Shapiro
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patent: 5769284 (1998-06-01), Vargas et al.
patent: 6955185 (2005-10-01), Rauworth et al.
patent: 44-37 981 (1995-04-01), None
patent: 9-297146 (1997-11-01), None

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