Title:
FLOW RATE CORRECTING DEVICE
Document Type and Number:
Japanese Patent JP3679174
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent an operation switch from being freely operated by a third person since the display content can be understood when the third person looks at a display unit in the case where the operation switch of the display unit is arranged on the front face of a device.
SOLUTION: In a flow rate correcting device 11, a display window 19 opposed to a liquid crystal display unit 18 arranged in a housing is arranged on the front face of a cover 17 of the housing. A key switch 20, a rotary switch 21 and a push-button switch 22 are arranged on the front face of the cover 17. The display content of the liquid crystal display unit 18 can be selectively switched by a combination of the key switch 20 and a rotary operation position of the rotary switch 21. Therefore, since a third person having no key to be inserted into the key switch 20 can not freely operate the display content of the liquid crystal display unit 18 in a switching system, mischief by the third person can be prevented.
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Inventors:
Megumi Iwakawa
Negoro Nobuo
Toshiaki Hojo
Kazutaka Suzuki
Negoro Nobuo
Toshiaki Hojo
Kazutaka Suzuki
Application Number:
JP31549695A
Publication Date:
August 03, 2005
Filing Date:
December 04, 1995
Export Citation:
Assignee:
OSAKA GAS CO.,LTD.
Tokyo Gas Co., Ltd.
Toho Gas Co., Ltd.
Tokiko Techno Co., Ltd.
Tokyo Gas Co., Ltd.
Toho Gas Co., Ltd.
Tokiko Techno Co., Ltd.
International Classes:
G01F25/00; (IPC1-7): G01F25/00
Domestic Patent References:
| JP7274302A | ||||
| JP7285748A | ||||
| JP7179005A | ||||
| JP60025917U | ||||
| JP3052813B2 | ||||
| JP3003896B2 | ||||
| JP63067132B1 |
Attorney, Agent or Firm:
Tadahiko Ito