Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1978-09-29
1980-07-29
Schwadron, Martin P.
Fluid handling
Processes
Cleaning, repairing, or assembling
138 89, 220321, 220323, F16L 5510
Patent
active
042145996
ABSTRACT:
A device for use in connection with tapping off fluid from or filling fluid into a container through an internally threaded tapping or filling hole in the container provided with an externally threaded generally cup-shaped plug having an outwardly open cavity in which a tool may be inserted for rotating the plug. The device comprises a bell-like housing and a tool for manually operating the plug from a position outside the housing. The tool comprises a shaft which extends slidably and rotatably through a portion of the housing opposite to the open end of the housing and which is provided with a handle at its outer end and with a plug holding and operating means at its inner end. The latter means includes an expansion mechanism adapted to be expanded into contact under pressure with portions of the side wall of the cavity of the plug upon insertion of the plug holding and operating mechanism into the cavity.
REFERENCES:
patent: 800771 (1905-10-01), Terney
patent: 972384 (1910-10-01), Kellar et al.
patent: 1483964 (1924-02-01), Abramovitz
patent: 2075383 (1937-03-01), Vaughn
patent: 2186925 (1940-01-01), Hooper et al.
patent: 2187838 (1940-01-01), Penick et al.
patent: 3103293 (1963-10-01), Beutler
patent: 3637257 (1972-01-01), Uncapher
patent: 4127141 (1978-11-01), Ledonne et al.
Schwadron Martin P.
Walton G. L.
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