Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FLOWING WATER DETECTING DEVICE
Document Type and Number:
Japanese Patent JP10142251
Kind Code:
A
Abstract:

To provide the certainty of a fire alarm by certainly prevent erroneous information at the time of momentary water passing in a flowing water control valve in a working valve type flowing water detecting device.

The outside of a valve main body 2 is provided with a limit switch 24 for switchingly actuating an alarm means 32 by detecting the rotating angle of the spindle protruding end 19a of a check valve element, and a rotary body 33 for opening and closing the limit switch 24 is journalled to the above outside. A tension spring 40 for damping the opening rotary speed of a spindle and a rotary damper 45 whose one directional rotation is large in resistance load are provided between the protruding end 19a of the spindle and the rotary body 33.


Inventors:
Hori, Kenji
Kotaki, Mitsuhiro
Application Number:
JP1996000300138
Publication Date:
May 29, 1998
Filing Date:
November 12, 1996
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
YAMATO PROTEC CO
International Classes:
A62C35/02; A62C35/68; A62C37/08; G01F1/28; G01L13/00; G01P13/00; A62C35/00; A62C35/58; A62C37/08; G01F1/20; G01L13/00; G01P13/00; (IPC1-7): G01P13/00; A62C35/02; A62C35/68; A62C37/08; G01L13/00