Automatic liquid filling device and method of filling to a prede

Details Automatic liquid filling device and method of filling to a prede Automatic liquid filling device and method of filling to a prede

1999-11-18

2000-08-01

Jacyna, J. Casimer

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

Level or overflow responsive

141 1, 141 35, 141242, 137428, B65B 304

Patent

active

060952067

ABSTRACT:
A method and device for filling a container with liquid up to a predetermined level. The device includes a cylinder and a piston movable within the cylinder between a rest position and a fill position. A supply of liquid for filling the container is provided to a first end of the piston at alternating pressures to cycle the piston back and forth between the rest and fill positions. Each time the piston reaches its fill position, supply liquid is added to the container. With each cycle the device draws fluid from the container and then attempts to compress the drawn fluid with a second end of the piston. When the fluid drawn is gas, the piston can compress the gas to continue moving to the fill position. When the drawn fluid is liquid, the piston can not compress the liquid and thus is stopped to prevent further filling.

REFERENCES:
patent: 2767552 (1956-10-01), Clute
patent: 4527593 (1985-07-01), Campau
patent: 4544004 (1985-10-01), Fitter et al.
patent: 5002100 (1991-03-01), Frederick
patent: 5678615 (1997-10-01), Hughes

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