Title:
CHECK VALVE AND LIQUID SUPPLY DEVICE EQUIPPED WITH CHECK VALVE
Document Type and Number:
WIPO Patent Application WO/2016/009665
Kind Code:
A1
Abstract:
A check valve (10a) comprises a valve case (25) in the interior of which a valve chamber (23) is provided. The valve case (25) is formed from: a valve seat member (21) in which a valve hole (22) is provided; and a case main body (24) that comprises a cylindrical member (26) on which a holder (27) is provided. A valve body (31) is disposed in the valve chamber (23). A plurality of engagement grooves (35) are provided in the holder (27) of the valve case (25). In the valve chamber (23), loop-shaped elastic members (41) are mounted in a direction across the flow of fluid, the elastic members (41) are engaged with the engagement grooves (35), and elastic force toward the valve hole (22) is biased by the valve body (31) in a plurality of locations offset in the circumferential direction from the engagement grooves (35).
Inventors:
YAJIMA TAKEO (JP)
Application Number:
PCT/JP2015/053582
Publication Date:
January 21, 2016
Filing Date:
February 10, 2015
Export Citation:
Assignee:
KOGANEI LTD (JP)
International Classes:
F16K15/04; F04B43/08; F04B53/10
Foreign References:
| JPH07310838A | 1995-11-28 | |||
| JP2006029423A | 2006-02-02 | |||
| JP2008128059A | 2008-06-05 | |||
| US20100051118A1 | 2010-03-04 |
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (JP)
Patent business corporation Tsutsui international patent firm (JP)
Patent business corporation Tsutsui international patent firm (JP)
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