Pipes and tubular conduits – Longitudinally seamed – Permanent type seam
Patent
1995-06-07
1997-09-02
Brinson, Patrick
Pipes and tubular conduits
Longitudinally seamed
Permanent type seam
138100, 138154, 138151, 138150, F16L 916
Patent
active
056621450
ABSTRACT:
A dual bias weld is an improved weld for joining strips to be formed into coiled tubing. Tubing is formed from a first strip and a second strip, the first and second strips being of the same width. A planar end surface is formed on an end of the first strip, the plane of the planar end surface being defined by a line lying along a top surface of the first strip at an acute angle with respect to the longitudinal direction of the first strip and a line lying along an edge surface of the first strip at an acute angle with respect to the longitudinal of the first strip. Similarly, a planar end surface is formed on an end of the second strip, the plane of the planar end surface being defined by a line lying along a top surface of the second strip at an acute angle with respect to the longitudinal direction of the second strip and a line lying along an edge surface of the second strip at an acute angle with respect to the longitudinal direction of the second strip. A composite strip is formed by welding the planar end surface of the first strip to the planar end surface of the second strip to form a dual bias weld. Excess weldment is then removed from top, bottom and edge surfaces of the composite strip such that the width of the weld is identical to the width of the first and second strips. Coiled metal tubing is then formed from the composite strip.
REFERENCES:
patent: 379663 (1888-05-01), Root
patent: 677712 (1901-07-01), Stapf
patent: 2730135 (1956-01-01), Wallace
patent: 2884958 (1959-05-01), Asselin, Sr.
patent: 2886691 (1959-05-01), Rudd
patent: 3153990 (1964-10-01), Kunzog
patent: 3279050 (1966-10-01), Simich
patent: 3336657 (1967-08-01), Flaming
patent: 3478784 (1969-11-01), Woelfer et al.
patent: 3523513 (1970-08-01), Maier et al.
patent: 3697718 (1972-10-01), Von Hollen et al.
patent: 3829602 (1974-08-01), Ishikawa et al.
patent: 3912151 (1975-10-01), Martin et al.
patent: 4863091 (1989-09-01), Dubois
patent: 5191911 (1993-03-01), Dubois
patent: 5215246 (1993-06-01), Thompson et al.
Brinson Patrick
Quality Tubing Inc.
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