Valve for insertion in a pressurized fluid flow line

Details Valve for insertion in a pressurized fluid flow line Valve for insertion in a pressurized fluid flow line

1993-08-30

1994-05-31

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

Tapping a pipe, keg, or apertured tank under pressure

30 93, 138 89, 138 94, 138 97, 408 67, 408 72R, 408101, 408207, F16K 4300, F16L 55128

Patent

active

053160371

ABSTRACT:
A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions which may be clamped on the fluid flow line to form a valve body in which is adjustably mounted a shaft carrying an annular hole cutter and a tubular seal. The shaft is rotatable for driving the annular hole cutter through the line and to position the tubular seal in the hole cut through the line to block and seal flow through the downstream portion of the line.

REFERENCES:
patent: 3532113 (1970-10-01), McKean
patent: 3833020 (1974-09-01), Smith
patent: 3863667 (1975-02-01), Ward
patent: 3867964 (1975-02-01), Gardner
patent: 4205697 (1980-06-01), Gebelius
patent: 4552170 (1985-11-01), Margrave
patent: 4628955 (1986-12-01), Smith
patent: 4719936 (1988-01-01), Tsubakimoto et al.
patent: 5018421 (1991-05-01), Lucki et al.
patent: 5076311 (1991-12-01), Marschke
patent: 5152310 (1992-10-01), O'Bryon
patent: 5183364 (1993-02-01), Hardwig

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