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Patent Searching and Data


Title:
BATH DEVICE AND BACKFLOW PREVENTING DEVICE
Document Type and Number:
Japanese Patent JP3031047
Kind Code:
B2
Abstract:

PURPOSE: To provide a bath device in which a piping before a three-way ball valve 31 for use in changing-over an additional heating of hot water within a bath tub and a hot water feeding into the bath tub is improved so as not to fulfil the high pressure caused by water hammer, a movement of the three- way ball valve is made smooth and damage of the valve is prohibited.
CONSTITUTION: A solenoid valve 34 installed in a water drain hole 60 in a back-flow preventing device 30 is always kept released. Shock wave of water hammer entered into the piping 50 passes through the solenoid valve 34 and is discharged into the over-flow chamber 32 of the back-flow preventing device 30.


Inventors:
Kita, Hiroshi
Hidaka, Katsuhiro
Matsui, Hiroshi
Yamamoto, Yuzo
Application Number:
JP1992000078319
Publication Date:
April 10, 2000
Filing Date:
February 27, 1992
Export Citation:
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Assignee:
NORITZ CORP
International Classes:
F24H1/46; F24H1/00; (IPC1-7): F24H1/00; F24H1/46
Attorney, Agent or Firm:
藤田 隆