Title:
CHECK VALVE, SEALING BAG, AND PRODUCTION METHOD FOR BOTH
Document Type and Number:
WIPO Patent Application WO/2011/052246
Kind Code:
A1
Abstract:
Disclosed is a check valve that has a high certainty of checking effectiveness and in which production costs have been kept as low as possible. Also disclosed is a sealing bag. A check valve (V) is provided with flexible resin base sheets (31, 32) and a plurality of valve body sheets (4). In the valve body sheets (4), at least an upstream valve body sheet (4a) and a downstream valve body sheet (4b) are formed as a set and adhered to one of the base sheets (31). The abovementioned upstream valve body sheet (4a) is adhered to the abovementioned base sheet (31) at the upstream end (4a1), while the downstream end (4a2) is capable of moving in relation to the abovementioned base sheets (31, 32). The abovementioned downstream valve body sheet (4b) is adhered at the downstream end (4b2), while the upstream end (4b1) is capable of moving in relation to the abovementioned base sheets (31, 32). In the abovementioned valve body sheets (4a, 4b), the ends (4a2, 4b1) that are capable of moving in relation to the abovementioned base sheets (31, 32) are capable of coming in contact with the other base sheet (32).
Inventors:
TANAKA MIKIO (JP)
Application Number:
PCT/JP2010/054642
Publication Date:
May 05, 2011
Filing Date:
March 18, 2010
Export Citation:
Assignee:
TANAKA MIKIO (JP)
International Classes:
B65D30/24
Foreign References:
| JPH0542034Y2 | 1993-10-22 | |||
| JP2535548Y2 | 1997-05-14 | |||
| JPH0518275Y2 | 1993-05-14 | |||
| JP2006207743A | 2006-08-10 | |||
| JPH088996Y2 | 1996-03-13 | |||
| JP2691881B2 | 1997-12-17 | |||
| JP2007168865A | 2007-07-05 |
Attorney, Agent or Firm:
SAMEJIMA TAKENOBU (JP)
Takenobu Sameshima (JP)
Takenobu Sameshima (JP)
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