Pipe joints or couplings – With casing – lining or protector – Insulated
Patent
1975-07-03
1977-02-01
Kundrat, Andrew V.
Pipe joints or couplings
With casing, lining or protector
Insulated
285138, 285179, 285294, 285256, F16L 1112
Patent
active
040058808
ABSTRACT:
A gas service connector for connecting a plastic underground gas service line to an aboveground meter installation. Comprising the connector is a continuous length of gas carryable plastic tubing concentrically spaced within a tubular elbow-shaped gas-free steel pipe jacket. The spacing at each end of the sleeve and tubing is gasket sealed against leakage with their common end aboveground being interlocked to resist axial displacement therebetween. In one embodiment the spacing between sleeve and tubing in at least the aboveground portion defines an air space rendering the unit capable of withstanding aboveground temperatures of up to about 100.degree. F. For withstanding higher aboveground temperatures to 150.degree. F. the spacing between tubing and sleeve in a second embodiment is filled with a reinforced epoxy from at least just belowground level.
REFERENCES:
patent: 3224794 (1965-12-01), Crissy
patent: 3244438 (1966-04-01), Bucheit
patent: 3578360 (1971-05-01), Eliot
patent: 3700268 (1972-10-01), Nielsen, Jr.
patent: 3814466 (1974-06-01), Leopold
patent: 3828823 (1974-08-01), Douglas
patent: 3837686 (1974-09-01), Powell
patent: 3861719 (1975-01-01), Hand
patent: 3922008 (1975-11-01), Stiner
Anderson Gerald L.
Kresge Wilbur R.
Dresser Industries Inc.
Kundrat Andrew V.
Rubin Daniel
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