Title:
【発明の名称】一端あるいは両端に装着された連結スリーブを有する穴付き円管
Document Type and Number:
Japanese Patent JP2609444
Kind Code:
B2
Abstract:
A casing pipe with coupling sleeves at one or both ends is used for coupling other casing pipes into a line of casing pipes. The sleeve and peg coupling parts, that are designed as overlapping, interlocking flanges, have radial bores distributed around their circumference and into which coupling members mounted therein with spherical sections (1) are detachably inserted. The spherical sections (1) are flattened on both sides (4, 5) and are mounted in spherical concave bearing surfaces (18) of the inner peg coupling part (16) and in spherical concave counter-bearing surfaces (17) of threaded locking rings (9) screwed into threaded bores (19) of the outer flanges (15).
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Inventors:
From Me Theo
Application Number:
JP51980695A
Publication Date:
May 14, 1997
Filing Date:
January 13, 1995
Export Citation:
Assignee:
Bauer Spezzi Artif Bau Gesellschaft Mito Beschlenktel Haftung
International Classes:
E21B17/04; E21B17/046; F16L21/08; F16L25/08; (IPC1-7): E21B17/04; F16L21/08
Attorney, Agent or Firm:
Mitsufumi Esaki (2 others)
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