Title:
AIR RELEASE VALVE
Document Type and Number:
WIPO Patent Application WO/2009/033313
Kind Code:
A1
Abstract:
An air release valve (100) inserted in an aperture of a lid body includes an umbrella
film sheet (110), a gripping portion (120) protruded on the top of the umbrella
film sheet (110), a column body (130) situated under the umbrella film sheet (110)
and at least two venting grooves (150). A restricting portion (133) is protruded
outwardly and formed in the middle portion of the column body (130). The restricting
portion (133) divides the column body (130) into a first engaging portion (131)
and a second engaging portion (132). Multiple blocking pieces (140) are protruded
outwardly and formed at the end of the column body (130). Each venting groove (150)
is formed by connecting a first venting groove (151) provided on the surface of
the column body (130) and between the blocking pieces (140) with a second venting
groove (152) situated on the bottom face (111) of the umbrella film sheet (110).
Inventors:
CHEN XINYU (CN)
Application Number:
PCT/CN2007/002685
Publication Date:
March 19, 2009
Filing Date:
September 11, 2007
Export Citation:
Assignee:
CHEN XINYU (CN)
International Classes:
F16K24/00; B65D51/16; B65D81/20
Domestic Patent References:
| WO2006009345A1 | 2006-01-26 |
Foreign References:
| DE202007003522U1 | 2007-05-10 | |||
| CN2823147Y | 2006-10-04 | |||
| US4658979A | 1987-04-21 | |||
| JP2003040321A | 2003-02-13 | |||
| JP2000193116A | 2000-07-14 | |||
| JPH08326938A | 1996-12-10 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (Floor 16 Tower A, Indo Building,A48 Zhichun Road,Haidian District, Beijing, CN)
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