Title:
WORKING STATE MONITORING SYSTEM FOR GAS APPARATUS
Document Type and Number:
Japanese Patent JP3657638
Kind Code:
B2
Abstract:
PURPOSE: To provide a working state monitoring system for a gas apparatus capable of individually monitoring the working states of gas apparatuses in such a manner that a plurality of gas apparatuses of all types forms an object.
CONSTITUTION: Flute devices 7, 8, and 9 to generate a monitoring sound having loudness responding to a gas flow rate at respective given frequencies are mounted in the respective gas flow passages of a hot-water supplier 4, a gas stove 5, and a gas hot plate 6, which are arranged at a stage preceded by a gase meter 2. The gas meter 2 has a control unit 14 consisting of a microphone 13 to collect monitoring sound generated by the flute devices 7, 8, and 9 and a monitoring means to monitor the working state of the hot-water supplier 4, the gas stove 5, and the gas hot plate 6 by means of an electric signal from the microphone 13.
Inventors:
Shigeru Toyota
Tetsuro Naganuma
Tetsuro Naganuma
Application Number:
JP32270894A
Publication Date:
June 08, 2005
Filing Date:
December 26, 1994
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
International Classes:
F17D1/02; F17D3/00; F17D5/06; (IPC1-7): F17D3/00; F17D5/06
Domestic Patent References:
| JP3235021A | ||||
| JP60105932A | ||||
| JP5166439A | ||||
| JP59155271A | ||||
| JP61110945U | ||||
| JP61084370U | ||||
| JP1112440U |
Attorney, Agent or Firm:
Nobujun Kobashi
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