Title:
SEALING STRUCTURE FOR PUSH-TO-CONNECT TUBE FITTING
Document Type and Number:
WIPO Patent Application WO2002065008
Kind Code:
A3
Abstract:
The present invention discloses relates to a sealing structure for push-to-connect tube fitting for finishing a fastening operation at once by inserting the end of a hose with flexibility which can increase an allowable pressure, and in particular to a sealing structure for push-to-connect tube fitting which can enhance air tightness by positioning a backup ring for supporting one side or both sides of an O-ring isntalled to maintain air tightness between a body of the tube fitting and a hose between the body and a hose stopper. When force is transferred to the O-ring in an axial direction due to pulsation or external vibration, the backup ring for supporting one side of the O-ring prevents the O-ring from being moved.
Inventors:
KWON OH-KYUNG (KR)
KIM YOUNG-JU (KR)
KIM YOUNG-JU (KR)
Application Number:
PCT/KR2002/000226
Publication Date:
October 31, 2002
Filing Date:
February 09, 2002
Export Citation:
Assignee:
JINBO PREC IND CO LTD (KR)
KWON OH-KYUNG (KR)
KIM YOUNG-JU (KR)
KWON OH-KYUNG (KR)
KIM YOUNG-JU (KR)
International Classes:
A61M39/00; F16L37/092; (IPC1-7): F16L33/00
Foreign References:
| EP0610538A1 | 1994-08-17 | |||
| US4647079A | 1987-03-03 | |||
| US4288113A | 1981-09-08 | |||
| JPH084967A | 1996-01-12 |
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