Device for the pressure-sealed obturation of a portion of a prim

Details Device for the pressure-sealed obturation of a portion of a prim Device for the pressure-sealed obturation of a portion of a prim

1989-12-29

1991-07-23

Bryant, III, James E.

Pipes and tubular conduits

Repairing

138 89, 138 93, 138 98, 376203, 376451, 376204, 165 71, 165 76, F16L 5512

Patent

active

050335111

ABSTRACT:
The device for pressure-sealed obturation comprises a flexible tubular casing (22) having an open end along the perimeter of which the casing constitutes an inflatable toric seal (30) and a base (22a) in the form of a glove finger on which there is fixed the end of a shaft (21) disposed at the central part of the casing (22). The shaft (21) passes through the base (22a) of the casing (22) in a sealed manner. The device also comprises a plate (38) for retaining the casing (22) comprising at least two parts articulated to one another as well as retention plate (41) for fixing the retaining plate (38) under the base (22a). Ring shaped elements (43) are retained against the toric seal (30) by an articulated spacing device (47).

REFERENCES:
patent: 939804 (1909-11-01), Chersty
patent: 4673001 (1987-06-01), Pajes

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