Inflatable stopping bags

Details Inflatable stopping bags Inflatable stopping bags

2006-02-21

2006-02-21

Hook, James (Department: 3754)

Pipes and tubular conduits

With closures and plugs

Inflatable

C138S091000, C251S061100, C137S488000

Reexamination Certificate

active

07000641

ABSTRACT:
A method of controlling the fluid pressure of an inflatable stopping bag used to block the fluid flow through a fluid conduit comprises pressurising the bag using a pressure regulator which operates to regulate the pressure of the bag as a function of the instantaneous pressure in the pipe upstream of the stopping bag.

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patent: WO 01/25676 (2001-04-01), None

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