Title:
SCREWED TYPE PIPE JOINT
Document Type and Number:
Japanese Patent JP2004169812
Kind Code:
A
Abstract:
To provide a screwed type pipe joint for easily and visually checking a tightening state of a metallic pipe and solving lack of tightening problems.
A gap between an inner periphery of a sleeve 5 of a corrosion-proof coating 4 of a joint body 1 and an outer periphery of an end of a metallic pipe 7 is sealed by a circular packing 10. A confirmation mark 12 for tightening a metallic pipe is arranged on an outer peripheral surface of the circular packing 10.
Inventors:
IWAO KEIZO
TANAKA TAKAHIRO
FUJINO HIDEJI
KOMURA ATSUNORI
MINAMIDE YOSHIAKI
TONO TAKETOSHI
TANAKA TAKAHIRO
FUJINO HIDEJI
KOMURA ATSUNORI
MINAMIDE YOSHIAKI
TONO TAKETOSHI
Application Number:
JP2002336201A
Publication Date:
June 17, 2004
Filing Date:
November 20, 2002
Export Citation:
Assignee:
OSAKA GAS CO LTD
JFE PIPE FITTING MFG CO LTD
JFE PIPE FITTING MFG CO LTD
International Classes:
F16L15/04; F16J15/10; (IPC1-7): F16L15/04; F16J15/10
Attorney, Agent or Firm:
Koichi Suzue
Shoji Suzue
Shoji Suzue
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