Self-fill siphon pipes

Details Self-fill siphon pipes Self-fill siphon pipes

1989-04-12

1991-02-05

Skaggs, H. Grant

Dispensing

Siphon combined with discharge assistant

222416, 137151, B67D 506

Patent

active

049897608

ABSTRACT:
A sort of self-fill siphon pipe comprises a straight tube, a hose fitted onto the upper end of the straight tube and in communication with the straight tube, and a one-way valve fitted on the lower end of the straight tube wherein the one-way valve only allows the liquid to enter into the interior of the straight tube. In another form, there is provided inside the straight tube a tubular piston having a one-way valve slidable in the tube. The one-way valve on said tubular piston has a communication direction identical with that of the one-way valve at the lower end of the straight tube. While in use, the straight tube is inserted into the liquid and moves up and down intermittently, the liquid enters into the siphon pipe intermittently through the one-way valve and the siphon pipe is led into the siphon state to automatically suck the liquid.

REFERENCES:
patent: 408918 (1889-08-01), Meyer
patent: 442696 (1890-12-01), Thompson
patent: 1567570 (1925-12-01), Catron
patent: 1582399 (1926-04-01), Helander
patent: 1744738 (1930-01-01), Birnie
patent: 1914690 (1933-06-01), Hunt
patent: 2341129 (1944-02-01), Thompson
patent: 4414997 (1983-11-01), Jacobson et al.

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