Title:
FIRE EXTINGUISHING EQUIPMENT
Document Type and Number:
Japanese Patent JP3969472
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide fire extinguishing equipment with a check valve hardly allowing the remaining of dead water inside a line by automatically draining residual water after water conduction.
SOLUTION: In this fire extinguishing equipment, the line 5 has the check valve 10 including a main valve element closing a water passage port when running water is absent inside the line 5, and a drain valve opening a drain port when the running water is absent inside the line 5. In the check valve 10, the drain valve closes the drain port interlockingly with the main valve element when the main valve element opens the water passage port by the running water.
Inventors:
Hiroyuki Yoshiba
Application Number:
JP2000338573A
Publication Date:
September 05, 2007
Filing Date:
November 07, 2000
Export Citation:
Assignee:
Nomi Disaster Prevention Co., Ltd.
International Classes:
A62C35/68; A62C37/08; A62C37/11; F16K15/03; F16K15/04; (IPC1-7): A62C35/68; A62C37/08; A62C37/11; F16K15/03; F16K15/04
Domestic Patent References:
| JP7060171A | ||||
| JP11076449A | ||||
| JP32006870Y1 |
Attorney, Agent or Firm:
Souji Sasaki
Hisao Kobayashi
Saburo Kimura
Noboru Omura
Hisao Kobayashi
Saburo Kimura
Noboru Omura