Reelable flow stopper for plugging fluid flow within a pipe

Details Reelable flow stopper for plugging fluid flow within a pipe Reelable flow stopper for plugging fluid flow within a pipe

1988-10-21

1989-05-16

Rivell, John

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Liquid supplied at valve interface

137317, 251205, 251294, 251901, F16K 510, F16K 1300

Patent

active

048300411

ABSTRACT:
A reelable flow stopper for plugging fluid flow within a pipe having a guide housing with an enclosed guide channel. A guide housing sealably secures to at least one side of a full port gate valve and the opposite side of the full port gate valve is in communication with the inside of the pipe. The pipe has an access hole in a pipe wall of the pipe. The guide channel is in communication with the access hole. At least one guide prong of a fork extends into the pipe. The guide prong is secured to the guide housing. A roller bearing is rotably mounted to each guide prong of the fork. A take-up spool is secured to the bearing and the take-up spool rotates with respect to each guide prong of the fork. A stopper tape has a spool end secured to the take-up spool and an opposite end contacting the guide pins located within the guide housing. The guide pins route and guide the stopper tape into and out of the pipe. A crank is secured to a crank gear. A drive gear is secured with respect to the take-up spool. A chain is connected around the crank gear and the drive gear. Rotating the crank rotates the take-up spool and either coils or uncoils the stopper tape about the take-up spool located within the pipe.

REFERENCES:
patent: 3334656 (1967-08-01), Boyle
patent: 3973631 (1976-08-01), Hefetz
patent: 3990464 (1976-11-01), Jenkins
patent: 4295494 (1981-10-01), McGowan et al.
patent: 4401260 (1983-08-01), Grant
patent: 4438781 (1984-03-01), Brenholt
patent: 4441561 (1984-04-01), Garmong
patent: 4458721 (1984-07-01), Yie et al.
patent: 4554973 (1985-11-01), Shonrock et al.
patent: 4607469 (1986-08-01), Harrison

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