Pipe coupling

Pipe joints or couplings – With fluid pressure seal – Flexible lip

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Details

285373, F16L 1704

Patent

active

053102231

ABSTRACT:
An elastomer sealing sleeve 32 of C-shaped cross section is disposed in a contractible housing 10 and includes sealing lips 36 which extend towards each other and which, upon the contraction of the housing 10 and the simultaneous upending of the sleeve 32, are brought to bear snugly against the pipe wall 55. The front face 38 of the sleeve 32 is divided up into two oppositely directed conical surfaces 58, 60, which are embraced by a supporting ring 40 of V-shaped cross section. The inner flank 62 of the supporting ring is positioned between the radially inner surface 58 and the clamping ring 20 supported in the throat of the housing 10 and, in so doing, bridges the recesses 26 in the clamping ring 20. The outer flank 63 of the supporting ring supports the sleeve 32 in the area of the radially outer surface 60. This pipe coupling is particularly simple in its construction and is suitable for high operating temperatures and for large temperature changes.

REFERENCES:
patent: 2201372 (1940-05-01), Miller
patent: 2491004 (1949-12-01), Graham
patent: 2852282 (1958-09-01), Smisko et al.
patent: 3116078 (1963-12-01), Scherer
patent: 3432189 (1969-03-01), Buller
patent: 3582112 (1971-06-01), Pico
patent: 3877733 (1975-04-01), Straub
patent: 4119333 (1978-10-01), Straub
patent: 4629217 (1986-12-01), Straub
patent: 4664422 (1987-05-01), Straub
patent: 4717179 (1988-01-01), Haberstock et al.
patent: 4822083 (1989-04-01), Meinig
patent: 4842306 (1989-06-01), Zeidler et al.
U.S. application Ser. No. 07/716,139; Filed Jun. 17, 1991; Immanuel Straub; Pipe Coupling.

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