Sewer pipes

Details Sewer pipes Sewer pipes

1985-10-29

1987-06-16

Arola, Dave W.

Pipe joints or couplings

Molded joint

With lug and slot interlock

285321, 285915, 285921, F16L 2102

Patent

active

046731989

ABSTRACT:
Sewer pipes and connector means therefor whereby they can be connected during pipe jacking or moling, the connector means including a sleeve element and a resilient sealing ring located in a groove in a spigot portion of the sewer pipe, means also being provided to prevent the complete disengagement of the end of a sewer pipe from the sleeve.

REFERENCES:
patent: 1947998 (1934-02-01), Mazza
patent: 3112939 (1963-12-01), Graham
patent: 3345085 (1967-10-01), Hanes
patent: 3637239 (1972-01-01), Daniel
patent: 3638972 (1972-02-01), Alpine
patent: 3677581 (1972-07-01), Breitfuss
patent: 3809413 (1974-05-01), Boisserand
patent: 3858912 (1975-01-01), Bower

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