Pipes and tubular conduits – With closures and plugs – Laterally insertable
Patent
1975-11-05
1977-12-27
Aegerter, Richard E.
Pipes and tubular conduits
With closures and plugs
Laterally insertable
138 89, F16L 5510, F16L 5512
Patent
active
040649121
ABSTRACT:
The stopper includes a tubular cylindrical housing which seats on a gas main portion provided with a tap hole. A slidable tubular rod extends into the housing through the other end of the latter, and has connected to its lower end by a pivotal link, a stopper body in contracted condition for introduction into the gas main through the tap hole and being expansible within the main to stop the flow of gas therethrough. A packing gland assembly is provided on the other end of the cylindrical housing and is constructed to form a gas-tight closure for such housing, a gas tight slide guide for the tubular rod, and vent holes for the escape of gas from within the housing and into a venting pipe when the stopper additionally functions as a vent pipe. Normally however, the vent holes are closed by gas-tight plugs. A solid rod extends into the tubular rod through the outer end of the latter and is connected at its bottom end to the stopper body for expansion of the same by a cable which extends from such solid rod, around a guide pin located in the tubular rod, out through an aperture in such tubular rod and to a lug located on the stopper body diametrically opposite to the place of connection of the pivotal link to such a body. A second packing gland assembly forms a gas-tight closure at the outer end of the tubular rod and a gas-tight slide guide for the solid rod. The outer ends of the tubular and solid rods are provided with handles for manipulating the same and means are provided to temporarily secure the tubular rod to the cylindrical housing and the solid rod to the tubular rod. The vent pipe which has a diameter approximating that of the cylindrical housing and is aligned therewith when assembled thereon, is coupled to the upper end of the latter by a gas-tight compression coupling which encloses the first mentioned packing gland assembly.
REFERENCES:
patent: 1833700 (1931-11-01), Wolf
patent: 1988077 (1935-01-01), Goodman
patent: 2002383 (1935-05-01), Witt
patent: 2285779 (1942-06-01), Mueller et al.
patent: 2425483 (1947-08-01), Mueller et al.
patent: 2482696 (1949-09-01), Smith et al.
patent: 2696966 (1954-12-01), Mueller et al.
patent: 2780244 (1957-02-01), Lee
patent: 3105521 (1963-10-01), Edwards
patent: 3275023 (1966-09-01), Raspante
patent: 3442295 (1969-05-01), Ver Nooy
patent: 3774647 (1973-11-01), Saha et al.
patent: 3842864 (1974-10-01), Riegel et al.
patent: 3905396 (1975-09-01), Peterson
Aegerter Richard E.
Bryant III James E.
Hart John J.
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