Liquid purification or separation – Casing divided by membrane into sections having inlet – Cylindrical membrane
Patent
1989-10-27
1990-07-10
Sever, Frank
Liquid purification or separation
Casing divided by membrane into sections having inlet
Cylindrical membrane
21032189, 21050023, E01D 6100
Patent
active
049405420
ABSTRACT:
A device for dispensing a liquid, including a container having an interior space accommodating the liquid, a first valve attached to the container, a delivery path having one end submerged in the liquid and extending through the container such that the other end is outside the container, and a second valve disposed in the delivery path for closing and opening the delivery path. The first valve permits a pressurized gas to flow therethrough into the container to raise the pressure within the container, but inhibits a discharge flow of the pressurized gas and the liquid therethrough out of the interior space. The liquid is delivered out of the container through the delivery path, due to the raised pressure within the interior space. The device has a micro-porous membrane filter disposed in a portion of the delivery path which is located upstream of the second valve, as viewed in the direction of delivery of the liquid. The micro-porous membrane filter removes microorganisms from the liquid delivered from the delivery path.
REFERENCES:
patent: 2681252 (1954-06-01), Tuttle
patent: 3986510 (1976-10-01), Higuchi et al.
patent: 4076656 (1978-02-01), White et al.
patent: 4595121 (1986-06-01), Schultz
patent: 4613377 (1986-09-01), Yamazaki et al.
Matsumoto Satoru
Sakai Shin
Simizu Kazuo
Tanaka Hisao
Yamamoto Osamu
Mitsubishi Rayon Co. Ltd.
Sever Frank
Tomei Sangyo Kabushiki Kaisha
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