Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1977-11-14
1979-06-19
Hoag, W. E.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156196, 264137, 264236, 264313, 264320, 264339, 264347, B29C 2714, B29C 1300
Patent
active
041585860
ABSTRACT:
A bent pipe of reinforced synthetic resin is produced by supporting a flexible and elastic tubular mandrel in a stiff and straight position, forming layers of fiber impregnated with thermo-hardening synthetic resin about the mandrel, releasing the mandrel from the straightly stiffened position, bending the mandrel in the desired curvature, heat hardening the synthetic resin, and then extracting the mandrel from the bent pipe thus formed and hardened.
REFERENCES:
patent: 2995781 (1961-08-01), Sipler
patent: 3636606 (1972-01-01), Doak
patent: 3755037 (1973-08-01), Erwin et al.
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