Split-sleeve pipe device with integral seal and insulator

Details Split-sleeve pipe device with integral seal and insulator Split-sleeve pipe device with integral seal and insulator

1975-05-02

1977-04-05

Aegerter, Richard E.

Pipes and tubular conduits

Repairing

Patches

285197, 285373, F16L 4106

Patent

active

040156346

ABSTRACT:
A split-sleeve type pipe device for assembly on a pipe for sealing off at a leak, hot tapping a pipe at a desired location, and electrically insulating the pipe for cathodic protection. The coupling includes a one piece gasket insulator having split annular end seal portions connected by longitudinal side runner seal portions, and a pair of housing halves which fit together over the gasket to form a sealed housing along the pipe. Annular portions extend axially from either side of each annular seal portion for insulating the pipe from the housing. One of the housing halves has an externally threaded side boss defining an opening into the housing through one of the shell halves for manipulation of pipe cutting equipment and for connection of a valve or other suitable equipment. Both housing halves have internal and external flanges for engaging annular electrical insulator portions. End set screws and compression rings are provided for gasket compression.

REFERENCES:
patent: 631867 (1899-08-01), Beaver
patent: 1789387 (1931-01-01), McCree
patent: 2094258 (1937-09-01), Thompson
patent: 2146067 (1939-02-01), Graham
patent: 2690193 (1954-09-01), Smith
patent: 2775469 (1956-12-01), Brown et al.
patent: 2899984 (1959-08-01), Gaffin
patent: 3563276 (1971-02-01), Hight et al.
patent: 3685545 (1972-08-01), Smith et al.
patent: 3861422 (1975-01-01), Christie

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