Apparatus for sealing leakage points in pipes from the inside of

Details Apparatus for sealing leakage points in pipes from the inside of Apparatus for sealing leakage points in pipes from the inside of

1994-11-17

1995-11-14

Scherbel, David

Pipes and tubular conduits

Repairing

Patches

138 97, 4051501, F16L 55162

Patent

active

054657580

ABSTRACT:
A resilient sealing sleeve supported by a mounting cart is directed to a leakage point in pipes in order to seal them. The sealing sleeve is raised to the top of the pipe by a raising and lowering device, and widened there in the circumferential direction by a widening device provided on the mounting cart. A stopping device on the sealing sleeve holds the sleeve in its widened position for the purpose of sealing the pipe.

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patent: 4724108 (1988-02-01), Jurgenlohmann et al.
patent: 4995761 (1991-02-01), Barton
patent: 5076618 (1991-12-01), Bridges
patent: 5086809 (1992-02-01), Bridges
patent: 5190705 (1993-03-01), Corazza
patent: 5285817 (1994-02-01), Sigel
patent: 5351720 (1994-10-01), Maimets
patent: 5423630 (1995-06-01), Imoto et al.

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