Title:
TIGHTNESS-INDICATING TUBE FITTING
Document Type and Number:
WIPO Patent Application WO/2011/099667
Kind Code:
A1
Abstract:
The present invention relates to a tube fitting which is designed to be easily checked by visual inspection as to whether the amount of nut torque reaches a reference value. The tube fitting comprises a tube inserted into a body, at least one ferrule disposed around the tube, and a nut tightened onto the body to deform the ferrule for providing a seal between the body and the tube. If the nut is tightened on the body to a reference torque, a check ring is detached from the body by a pressing force of the nut such that the coupling state of the nut can be checked.
Inventors:
YOON JONG-CHAN (KR)
Application Number:
PCT/KR2010/001102
Publication Date:
August 18, 2011
Filing Date:
February 23, 2010
Export Citation:
Assignee:
BMT CO LTD (KR)
YOON JONG-CHAN (KR)
YOON JONG-CHAN (KR)
International Classes:
F16L39/06
Foreign References:
| KR20020039671A | 2002-05-27 | |||
| JP2006329214A | 2006-12-07 | |||
| US5074599A | 1991-12-24 | |||
| KR100666109B1 | 2007-01-11 | |||
| JPH09137884A | 1997-05-27 | |||
| JPH10267177A | 1998-10-09 |
Other References:
See also references of EP 2535631A4
None
None
Attorney, Agent or Firm:
CHOI, HAN SOO (KR)
최한수 (KR)
최한수 (KR)
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Claims:
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