Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1997-04-03
1999-07-27
Stemmer, Daniel
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
138 97, 138 98, 156294, 264 3616, 4051501, 405154, F16L 100, F16L 55162
Patent
active
059284471
ABSTRACT:
A method for repair of a length of a conduit having a circumferential inner surface, by anchoring to the inner surface in a direction parallel to the length a plurality of sections of tubing of generally rectangular cross-section spaced around the conduit in the circumferential direction, each of the sections of tubing having therein a plurality of openings in a direction parallel to the circumferential direction. A plurality of strips of plastic sheeting is then anchored to the tubing on a surface opposite to a surface of the tubing anchored to the inner surface, with the strips of plastic sheeting extending circumferentially around the conduit along the length of the repair, and defining a space between the plastic sheeting and the inner surface. A first end of each of the plurality of sections of tubing and adjacent space between the sheeting and the conduit is sealed, and a settable liquid plastic is pumped into a second end of a plurality of sections of tubing, which exits through the openings and fills the space. The settable liquid plastic is permitted to cure, thereby repairing the conduit.
REFERENCES:
patent: 4585371 (1986-04-01), Jones-Hinton
patent: 4678370 (1987-07-01), Allen
patent: 4995929 (1991-02-01), Menzel
patent: 5101863 (1992-04-01), Fujii
patent: 5102263 (1992-04-01), Allen
patent: 5190705 (1993-03-01), Corazza
patent: 5388929 (1995-02-01), Molyneux
patent: 5580406 (1996-12-01), O'ffill
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