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Patent Searching and Data


Title:
INSERTION OF BUTTERFLY VALVE DEVICE UNDER CONTINUOUS FLOW
Document Type and Number:
WIPO Patent Application WO/2018/168339
Kind Code:
A1
Abstract:
The present invention comprises: an assembly step for attaching a sealed case in an existing pipe; a cutting step for forming a first groove-like opening extending in the pipe axis direction of the existing pipe; a second drilling step for forming a circular second opening at a location on the existing pipe facing the first opening; and an insertion step for inserting a butterfly-shaped valve body, which is in an open state and is integrated with a valve shaft passing through the first and second openings, through the first opening into the existing pipe 1 until the tip-end portion of the valve shaft protrudes from the second opening.

Inventors:
YOKOYAMA Gunpei (206-7, Oaza-Kitawaki, Hino-ch, Gamo-Gun Shiga 63, 〒5291663, JP)
SATO Yasunari (206-7, Oaza-Kitawaki, Hino-ch, Gamo-Gun Shiga 63, 〒5291663, JP)
Application Number:
JP2018/005689
Publication Date:
September 20, 2018
Filing Date:
February 19, 2018
Export Citation:
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Assignee:
SUIKEN CO.,LTD. (206-7, Oaza-Kitawaki Hino-ch, Gamo-Gun Shiga 63, 〒5291663, JP)
International Classes:
F16K1/226; F16K27/02; F16K41/08; F16L55/00
Foreign References:
JPS60143291A1985-07-29
JPS6246068A1987-02-27
JPH0540665U1993-06-01
Attorney, Agent or Firm:
YAMAMURA PATENT ATTORNEYS OFFICE (KOEI Bldg, 2-2 Ekimae 3-chom, Ibaraki-Shi Osaka 88, 〒5670888, JP)
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