Title:
GAS PLUG
Document Type and Number:
Japanese Patent JP3859631
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a gas plug preventing a plug body from being unable to close due to stick at a time of fire and excellent in waterproofness.
SOLUTION: This gas plug is constructed to prevent sticking by putting thermal expansion material 21 between a bottom part 4b of a taper hole 4 and a bottom surface 6b of a plug body 6, expanding the thermal expansion material 21 at a time of fire to surface the plug body 6, and forming a gap W between a taper hole 4 and sliding surfaces 4a, 6a of the plug body 6. A waterproofing packing chamber 20 is formed between an outer circumference of an upper opening 5 of the gas plug main body 1 and an inner circumference surface of a bottom edge 18 of a handle 8, and water proofing packing 16 stuck by three points is inserted therein to increase sealing performance.
Inventors:
Masahide Nakamura
Application Number:
JP2003340886A
Publication Date:
December 20, 2006
Filing Date:
September 30, 2003
Export Citation:
Assignee:
Gwangyang Sangyo Co., Ltd.
International Classes:
F16K5/16; F16K5/02; F16K35/00; (IPC1-7): F16K5/16; F16K5/02; F16K35/00
Domestic Patent References:
| JP10332000A | ||||
| JP7035254A | ||||
| JP2000329251A | ||||
| JP2003294160A | ||||
| JP2004225830A | ||||
| JP2003236006A | ||||
| JP2002039403A | ||||
| JP61181171U | ||||
| JP52065942U |
Attorney, Agent or Firm:
Noboru Watanabe
Harada Sanjugi
Harada Sanjugi
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