Title:
液体定量吐出装置
Document Type and Number:
Japanese Patent JP4704710
Kind Code:
B2
Abstract:
A liquid dispenser is provided which dispenses a predetermined amount of a liquid from a reservoir. It includes a negative pressure system to supply a negative pressure which acts on the liquid in the liquid reservoir while no liquid is being dispensed. The negative pressure system includes a negative pressure source, an electropneumatic regulator communicating with the negative pressure source to regulate the pressure inside the liquid reservoir to a desired negative pressure level, a pressure sensor provided between the electropneumatic regulator and reservoir, and a control means for controlling the electropneumatic regulator responsive to a signal from the pressure sensor to regulate the pressure inside the reservoir to the desired negative pressure level. It can assure a negative pressure which is stable even just after it is switched on and can thus work stably even right after the switch-on.
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Inventors:
Kazumasa Ikushima
Application Number:
JP2004247248A
Publication Date:
June 22, 2011
Filing Date:
August 26, 2004
Export Citation:
Assignee:
Musashi Engineering Co., Ltd.
International Classes:
B05C5/00; B05C11/10; B67D7/72
Domestic Patent References:
| JP2004105968A | ||||
| JP2122858A | ||||
| JP7050418B2 | ||||
| JP6204268A | ||||
| JP11347395A | ||||
| JP8029283A | ||||
| JP6296916A | ||||
| JP2056271A | ||||
| JP63097259A |
Foreign References:
| US5199607 | ||||
| US5277333 | ||||
| WO1992000813A1 |
Attorney, Agent or Firm:
Junzo Ogawa
Morio Nakamura
Morio Nakamura