Title:
PROTECTIVE CAP FOR GAS PLUG
Document Type and Number:
Japanese Patent JP2012052635
Kind Code:
A
Abstract:
To provide a protective cap capable of preventing flow-out of a large amount of gas from a gas hole of a plug by an unexpected accident when the plug is not used.
An annular protrusion part 15a is formed at a bottom part 15 of a cap part 13. The annular protrusion part 15a annularly comes in press contact with a diameter expansion part 4b of the plug 4 when the cap part 13 is externally inserted in the plug 4 into a prescribed position.
Inventors:
KAWAI YOSHINORI
KASAHARA MAKI
WADA TETSUYA
KASAHARA MAKI
WADA TETSUYA
Application Number:
JP2010197468A
Publication Date:
March 15, 2012
Filing Date:
September 03, 2010
Export Citation:
Assignee:
KOYO SANGYO LTD
International Classes:
F16K27/08; F16L55/00
Domestic Patent References:
| JP3012060U | 1995-06-06 | |||
| JP2000309364A | 2000-11-07 | |||
| JPS5932796U | 1984-02-29 | |||
| JPS5780794U | 1982-05-19 | |||
| JP3012060U | 1995-06-06 | |||
| JP2000309364A | 2000-11-07 | |||
| JPS5932796U | 1984-02-29 | |||
| JPS5780794U | 1982-05-19 |
Attorney, Agent or Firm:
Noboru Watanabe
Harada Sanjugi
Harada Sanjugi