Title:
ANTIFREEZING DEVICE FOR WATER PIPE
Document Type and Number:
Japanese Patent JP3604340
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an antifreezing device for a water pipe capable of preventing the pipe from being restricted by taking water draining into account, reducing cost, and preventing a failure.
SOLUTION: A suction port of a tank having a water drain hole in a bottom part and an end connection in an upper part is connected with the pipe through a water drain port of a water drain valve. When draining water, the water drain valve is opened, a hose part of a vacuum cleaner is connected with the end connection and is operated to collect water in the pipe into a tank once by utilizing its suction force. After the operation ends, the water in the tank is naturally discharged to the outside through the water drain hole.
Inventors:
Taku Narita
Yoichi Nagashima
Yoichi Nagashima
Application Number:
JP2000389750A
Publication Date:
December 22, 2004
Filing Date:
December 22, 2000
Export Citation:
Assignee:
Photo Alloy Co., Ltd.
Sekisui Chemical Hokkaido Co., Ltd.
Sekisui Chemical Hokkaido Co., Ltd.
International Classes:
E03B7/10; (IPC1-7): E03B7/10
Domestic Patent References:
| JP55013271U | ||||
| JP4066000U |
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