Clamping device for underground pipes

Details Clamping device for underground pipes Clamping device for underground pipes

1985-06-26

1987-03-03

Scanlan, Jr., Richard J.

Pipe joints or couplings

With assembly means or feature

With holding means functioning only during transportation...

285197, 285198, 137318, F16L 5500

Patent

active

046470735

ABSTRACT:
A clamping device for connecting a branchpipe to a main pipe buried underground, has a main body with a lower side having a curved surface for engaging the main pipe and, at the same time, is provided with a connection port for a branched coupling. Arms are supported by sections of the body on both sides of the connection port cand on the upper side of the main body. These arms are extended downwardly so as to hold the main pipe and move for free rotation with respect to the support sections. Arm retainers are idly supported at the centers by bolts which are screwed into threaded holes provided on a midplane of the support sections of the main body. The retainers have pushing sections formed on both their ends for pushing the arms from above, at external sides of the support sections. Only a small working hole must be excavated for connecting the branched pipe to the main pipe since the clamping device can be positioned and tightened from ground level.

REFERENCES:
patent: 204730 (1878-06-01), Hawkes
patent: 691246 (1902-01-01), Cram
patent: 1326392 (1919-12-01), Combs
patent: 2230046 (1941-01-01), Curtis
patent: 2736335 (1956-02-01), Webber
patent: 3815624 (1974-06-01), Mullins
patent: 4168089 (1979-09-01), Hulslander

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