Process for making a curved preform made from woven...

Details Process for making a curved preform made from woven... Process for making a curved preform made from woven...

2006-05-16

2006-05-16

Staicovici, Stefan (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

C264S257000, C264S258000, C264S291000, C264S324000

Reexamination Certificate

active

07045084

ABSTRACT:
The invention is a process for forming a preform for use in a structure having at least one curved portion of a specific length, including the steps of: 1) providing a preform having cable of expanding in length threads in rows parallel to the direction of curvature over a length equal to the length requiring curvature, such that the gaps between each thread row are spaced from the gaps in the adjacent tread rows; and 2) stretching the portions of the preform requiring curvature in a sine-wave pattern.

REFERENCES:
patent: 6007319 (1999-12-01), Jacobson
patent: 6446675 (2002-09-01), Goering
patent: 6477740 (2002-11-01), Hansen
patent: 6520706 (2003-02-01), McKague, Jr. et al.
patent: 6553734 (2003-04-01), McKague, Jr. et al.
patent: WO 01/64387 (2001-07-01), None

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