Apparatus for making fiber reinforced plastic members

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Automatic and/or material-triggered control

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Details

156169, 156173, 156360, 156425, 156429, 156430, 156431, B31C 900, B32B 3112, B65H 8100, G05G 1500

Patent

active

040897273

ABSTRACT:
The present invention relates to FRP members, the apparatus and process for making same. The FRP members are reinforced with helical strands of reinforcing material disposed in expanded helices of opposite hand, the helices of each hand being contained in discrete layers. The lead angle of each helix may be constant or varied along the length of the member independently of whether the member is cylindrical or tapered in order to provide the desired structural characteristics. The process comprises impregnating the reinforcing strands with resin and wrapping those strands onto a mandrel by apparatus in which relative rotational as well as relative translatory movement between the mandrel and a winding head may be effected to wrap the strands onto the mandrel. At least one relative movement may be selectively varied to effect the desired lead angle to the helically disposed reinforcing strands along the length of the mandrel.

REFERENCES:
patent: 2747649 (1956-05-01), Reed
patent: 2995175 (1961-08-01), Lundskow
patent: 3240643 (1966-03-01), Schroeder et al.
patent: 3378427 (1968-04-01), McClean
patent: 3459613 (1969-08-01), Copenhefer et al.
patent: 3614005 (1971-10-01), Chartier
patent: 3932254 (1976-01-01), Comte
patent: 3998458 (1976-12-01), Inoue et al.

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