Temporary or permanent blocking of the bore of a pipe

Details Temporary or permanent blocking of the bore of a pipe Temporary or permanent blocking of the bore of a pipe

1988-07-19

1990-03-27

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

137318, 138 89, 138 97, F16K 4300, F16L 5510, F16L 5518

Patent

active

049111930

ABSTRACT:
A method is provided for temporarily or permanently blocking the bore of a gas service pipe 5. In the method a resilient ball 6 is forced along the pipe 5 from the gas meter tap end of the pipe 5 by gas pressure, the ball 6 forming a force fit sufficient to resist any attempt to dislodge it by the pressure of gas in the pipe 5. The ball 6 is forced to a position where it is outside the gas consumer's premises 1.

REFERENCES:
patent: 1850040 (1932-03-01), Turner
patent: 2299365 (1942-10-01), Valuch
patent: 2588188 (1952-03-01), Weisman
patent: 2763282 (1956-09-01), Reedy et al.
patent: 3032069 (1962-05-01), Ficklin
patent: 3091260 (1963-05-01), Milanovits et al.
patent: 3245257 (1966-04-01), Anderson
patent: 3382888 (1968-05-01), Mueller et al.
patent: 3889714 (1975-06-01), Wilger et al.
patent: 4299255 (1981-11-01), Miller
patent: 4440194 (1984-04-01), Kinumoto et al.
patent: 4503880 (1985-03-01), Hochman

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