Hole reinforcement

Details Hole reinforcement Hole reinforcement

1981-08-27

1983-07-05

Marcus, Stephen

Pipes and tubular conduits

Combined

138172, 138DIG2, 220 72, 220414, B65D 9002, F16L 916

Patent

active

043913016

ABSTRACT:
A filament wound structural vessel includes a cylindrical wall formed of a cured thermosetting resin reinforced by fibrous material. An opening in the wall is reinforced by a series of reinforcement bands formed by filament windings that encircle the wall and run adjacent the opening.

REFERENCES:
patent: 1527300 (1925-02-01), Haerther
patent: 3106940 (1963-10-01), Young
patent: 3228549 (1966-01-01), Courtney
patent: 3303079 (1967-02-01), Carter
patent: 3315989 (1967-04-01), Ohnstad
patent: 3321924 (1967-05-01), Liddell
patent: 3393821 (1968-07-01), Verlinden
patent: 3432188 (1969-03-01), Turner
patent: 4202379 (1980-05-01), Vetter

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