Title:
高い組立トルクでの2つの金属管のためのネジ接続
Document Type and Number:
Japanese Patent JP4939688
Kind Code:
B2
Abstract:
A threaded connection for two metal pipes which includes a tapered male thread with trapezoidal threads on a male element and a mating female thread on a female element. The thread width of the male and female threads, at the thread crest, is less than the thread width at the thread root. The width of the thread crests is larger than the width of a space between the roots of the mating threads. The male and female elements are screwed to a position located beyond that of the position where two flanks of the male threads come into contact with two flanks of the female threads. Such a connection permits makeup with a very high torque. The threads of one and/or the other of the threads can optionally include a groove opening into the thread crest.
Inventors:
Noel, cherry
Barren, Emmanuel
Barren, Emmanuel
Application Number:
JP2000569154A
Publication Date:
May 30, 2012
Filing Date:
September 02, 1999
Export Citation:
Assignee:
Ballorec Manesmann Oil and Gas France
SUMITOMO METAL INDUSTRIES,LTD.
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
F16B7/18; F16B33/02; F16L15/04; F16L15/06
Domestic Patent References:
| JPH05272668A | 1993-10-19 | |||
| JPH09119564A | 1997-05-06 | |||
| JPH0650476A | 1994-02-22 | |||
| JPS5466252A | 1979-05-28 | |||
| JPS5076264A | 1975-06-21 | |||
| JPS639794A | 1988-01-16 | |||
| JPH11294650A | 1999-10-29 | |||
| JPS61218891A | 1986-09-29 | |||
| JPS6469907A | 1989-03-15 | |||
| JPH10141348A | 1998-05-26 |
Foreign References:
| FR2599811A1 | 1987-12-11 |
Attorney, Agent or Firm:
Chihiro Imai
Yuzo Yamazaki
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Kiko Okada
Naomi Mae
Hideo Hayashi
Yuzo Yamazaki
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Kiko Okada
Naomi Mae
Hideo Hayashi