CHECK VALVE, PRODUCTION METHOD THEREOF, AND CONTAINER PROVIDED WITH CHECK VALVE

Title:

CHECK VALVE, PRODUCTION METHOD THEREOF, AND CONTAINER PROVIDED WITH CHECK VALVE

Document Type and Number:

WIPO Patent Application WO/2012/011558

Kind Code:

A1

Abstract:

Provided is a check valve capable of sufficiently suppressing the mixing of air in a container even if an impact is applied to the container, and capable of stably maintaining a superior discharging property of the content. A check valve (10) is integrally formed from a rubber material, and is provided with a cylindrical main body (1) having openings (1a, 1b) at opposite ends, a lid (3) arranged to close one opening (1a) of the main body (1), and a hinge (5) connecting the main body (1) and the lid (3), wherein the lid (3) comprises a projection (3a) on its side face (3b) so that the projection abuts the peripheral portion of the opening (1a) of the main body (1).

Inventors:

KUWAGAKI DENMI (JP)
SUGAWA MICHIO (JP)
HAGIMOTO HITOSHI (JP)
MINAMI TAIZO (JP)
HASHIMOTO TAKEHISA (JP)

Application Number:

PCT/JP2011/066678

Publication Date:

January 26, 2012

Filing Date:

July 22, 2011

Export Citation:

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Assignee:

KIKKOMAN CORP (JP)
ASAHI KASEI PAX CORP (JP)
MIKASA INDUSTRY CO LTD (JP)
KUWAGAKI DENMI (JP)
SUGAWA MICHIO (JP)
HAGIMOTO HITOSHI (JP)
MINAMI TAIZO (JP)
HASHIMOTO TAKEHISA (JP)

International Classes:

B65D43/16; B65D1/00; B65D1/02; B65D25/42; B65D25/46; B65D33/36; B65D83/00

Foreign References:

JPS5644679Y2	1981-10-19
JPS5414292Y2	1979-06-13
JPS59147050U	1984-10-01
JPS6055377B2	1985-12-04
JPH08271Y2	1996-01-10
JPS526493Y2	1977-02-10
JPS5226066Y2	1977-06-14
JPS4026144Y1	1965-09-06
JPS4918969Y1
JPH0487970A	1992-03-19
JPH10338239A	1998-12-22

Other References: