Inflatable plug with flange

Details Inflatable plug with flange Inflatable plug with flange

2007-01-10

2008-11-25

Brinson, Patrick F (Department: 3754)

Pipes and tubular conduits

With closures and plugs

Inflatable

C138S089000

Reexamination Certificate

active

07455077

ABSTRACT:
An inflatable plug insertable into a conduit and inflatable therein to restrict fluid flow comprises a bladder having an interior surface and an exterior surface and at least one fabric layer covering at least a portion of the exterior surface of the bladder. The inflatable plug also comprises a first plate, a second plate, and at least one fluid port. The first plate is positioned inside the bladder and adjacent to the interior surface of the bladder. The second plate is positioned outside the bladder and adjacent to the at least one fabric layer. The second plate is coupled to the first plate such that the first plate and the second plate clamp a portion of the at least one fabric layer and a portion of the bladder therebetween. The at least one fluid port extends through the first plate and the second plate and facilitates inflation and deflation of the bladder.

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