Special receptacle or package – Combined or convertible – Packaged assemblage or kit
Patent
1982-09-24
1984-01-24
Bryant, III, James E.
Special receptacle or package
Combined or convertible
Packaged assemblage or kit
206569, 206582, 206305, 138 90, 138 97, 138 98, 138103, 138178, 285 15, 285 55, B65D 6900
Patent
active
044271123
ABSTRACT:
Interior by-pass for underground gas service line is installed from building basement without need for excavation, and has a tightenable adapter attached on each end of the by-pass tubing to connect and seal the tubing to the interior periphery of the service line. Each adapter provides a pair of spaced-apart expanded sealing gaskets between the tubing and the service line, and a gas-leakage passage extending from the interior of the tubular adapter to the exterior spacing between the adapter gasket pair. Temporary gas-tight plugs are provided at respective locations between each leakage passage and the adjacent end of the by-pass tubing, and compressed natural gas test-pressure is applied within the tubing. Via both of the referred to leakage passages, the test pressure is exerted against all of the gasket seals to confirm gas-tightness thereof. Techniques are described for installing each adapter and the by-pass tubing, working only from the service end of the line, including installation of the service end adapter prior to the blind end adapter; the use of temporary gas-inflation bags to permit installation of the by-pass in the face of service gas flow; and structure on each adapter to fully expand the innermost gasket of each pair before the outermost gasket is expanded.
REFERENCES:
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patent: 3817086 (1974-06-01), Dorgebray et al.
patent: 4166479 (1979-09-01), Cleavenger
Ciminiello Francisco J.
Di Giovanni Bernard A.
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