Novel preform screens and preform product

Details Novel preform screens and preform product Novel preform screens and preform product

1988-12-27

1990-05-08

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428285, 4285428, B32B 310

Patent

active

049237314

ABSTRACT:
A novel preform screen for use in producing preforms for structural liquid composite molding is described. The screen has a raised edge provided around the screen to catch fibers as they are directed toward the screen surface during production of a preform. The preforms produced have a perimeter which is composed of chopped rovings oriented parallel to the edges of the preform.

REFERENCES:
patent: 4466845 (1984-08-01), Fortuna
patent: 4556594 (1985-12-01), Sedlatschek
patent: 4631218 (1986-12-01), Olofsson

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