Title:
FLOW STOP PLUG
Document Type and Number:
Japanese Patent JP2019090490
Kind Code:
A
Abstract:
To provide a flow stop plug exhibiting high flow stop performance without generating positional deviation of an outer layer bag.SOLUTION: A flow stop plug comprises: an expandable/contractable interior bag at one end of which a cylindrical mouthpiece is protrusively provided, wherein the mouthpiece can be connected to a fluid supply/discharge pipe for supplying/discharging fluid, and has rigidity; and an exterior bag covering the interior bag for expansion regulation and protection of the interior bag. The flow stop plug also comprises a first caulking ring externally fitting and crimping the mouthpiece via a mouth of the exterior bag, and a second caulking ring externally fitting and crimping the first caulking ring.SELECTED DRAWING: Figure 2
Inventors:
KAMEI TERUO
SAGARA HIROKAZU
DOKE KAZUTAKA
SAGARA HIROKAZU
DOKE KAZUTAKA
Application Number:
JP2017220108A
Publication Date:
June 13, 2019
Filing Date:
November 15, 2017
Export Citation:
Assignee:
COSMO KOKI CO LTD
YOKOHAMA IND PRODUCTS JAPAN CO LTD
KASHIMA CO LTD
YOKOHAMA IND PRODUCTS JAPAN CO LTD
KASHIMA CO LTD
International Classes:
F16L55/12
Domestic Patent References:
| JP2011016110A | 2011-01-27 | |||
| JP2014020498A | 2014-02-03 | |||
| JP2013201059A | 2013-10-03 |
Attorney, Agent or Firm:
Akihiro Fujii