Title:
LIQUID ADVANCE PREVENTIVE DEVICE
Document Type and Number:
Japanese Patent JP3204695
Kind Code:
B2
Abstract:
PURPOSE: To surely stop the injection of liquid by suction in spite of the generation of a liquid-mixed gas or liquid contg. solid suspended materials and to enhance a dehumidifying and dust removing effect and a deodorizing and bacterium removing effect by adjacently disposing a high-polymer material which swells by absorbing the liquid and porous materials having the pores to allow the passage of the gas.
CONSTITUTION: The high-polymer material 11 is packed between the two porous materials 12a and 12b and porous supporting layers 13a, 13b are disposed on the side of the porous materials 12a, 12b not in contact with the high-polymer material 11. The porous materials 12a, 12b have open cells to allow the passage of the gas and the pore sizes thereof are smaller than the grain size of the high-polymer material 11 to be used to prevent the high-polymer material 11 from overflowing. The high-polymer material 11 has the property to swell by absorbing the liquid to be injected into a container and is properly selected by the kinds of the liquid. The advance of the liquid to the outflow side is prevented in this way regardless of the generation of the liquid-mixed gas, the kinds of the liquid, etc. The effect of removing bacteria, dust and virus is obtd.
Inventors:
Keiichi Yamada
Shoji Hori
Tomoyasu Yamashita
Mie Azuma
Masumi Kobayashi
Shoji Hori
Tomoyasu Yamashita
Mie Azuma
Masumi Kobayashi
Application Number:
JP24618191A
Publication Date:
September 04, 2001
Filing Date:
September 25, 1991
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
A61L2/00; A61M1/00; (IPC1-7): A61L2/00; A61M1/00
Domestic Patent References:
| JP3144365A | ||||
| JP6024323U | ||||
| JP63500571A |
Attorney, Agent or Firm:
Toshio Yasuda