Metal working – Method of mechanical manufacture – Repairing
Patent
1994-09-19
1996-02-20
Bryant, David P.
Metal working
Method of mechanical manufacture
Repairing
2940218, 156 97, 156282, 156392, 156425, B23P 600
Patent
active
054918804
ABSTRACT:
A repair of a hollow tubular member adapted to contain a fluid under pressure, is performed by securing to the hollow tubular member to be repaired one end of a flexible tape consisting of continuous longitudinal fibers that occupy from 30-60% of the cross section of the tape, the fibers being encased in a thermoplastic matrix, the elastic limit of the material of the fibers being greater than the elastic limit of the material of the tubular member. The tape is caused to revolve around the tubular member while displacing the tape axially along the tubular member in order to wind the tape around the tubular member in a helix. The tape is heated immediately prior to its application to the tubular member and is cooled immediately following its application to the tubular member. The tape is unwound from a coiled supply of the tape and is braked between the tubular member and the coiled supply at a point spaced from the coiled supply thereby to impart to the tape a substantially greater tension between that point and the tubular member than between the coiled supply and that point. The tape can be a flexible strip consisting of an aluminum matrix coating fibers of steel.
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patent: 3890182 (1975-06-01), Terry
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patent: 4261785 (1981-04-01), Hunter
patent: 4514245 (1985-04-01), Chabrier
patent: 4558971 (1985-12-01), David
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