Pneumatic bolster for sealing damaged walls of containers and pi

Details Pneumatic bolster for sealing damaged walls of containers and pi Pneumatic bolster for sealing damaged walls of containers and pi

1988-05-20

1989-11-14

Bryant, III, James E.

Pipes and tubular conduits

Repairing

Patches

138 97, F16L 5516

Patent

active

048800350

ABSTRACT:
The leak sealing-pad for sealing off the damaged wall of containers and pipes is constructed from reinforced rubber material which is vulcanized under heat. It has a pad-surface (20) which is faced towards the leak and a pad-surface, equally as large, which faces away from the leak (22), both these surfaces being joined at their edges to form an air-tight inner-chamber (24) which can be accessed externally via a nipple (26). Attachment components (30), loops 54, and bridges 64 are attached to two edge zones which lie opposite each other, the narrow sides 28. These attachments are intended for a tension device which spans the container or pipe. Both the surfaces of the pad (20, 22) have internal reinforcing with bisecting, flexible reinforcing threads (34, 36; 40, 42). The pad-surface which faces toward the leak (20) is reinforced solely with reinforcing threads (34, 36) applied diagonally to the rectangular sides (28, 38) of the pad, while the pad-surface which faces away from the leak (22) has reinforcing threads (40, 42) which run parallel to the rectangular sides (28, 38).

REFERENCES:
patent: 2795523 (1957-06-01), Cobb et al.
patent: 3480043 (1969-11-01), Proudfoot et al.
patent: 3496963 (1970-02-01), Bandgette et al.
patent: 4202379 (1980-05-01), Vetter
patent: 4207918 (1980-06-01), Burns et al.
patent: 4448218 (1984-05-01), Vetter
patent: 4552183 (1985-11-01), Chick

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