Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Polymerizing – cross-linking – or curing
Patent
1994-02-14
1996-01-30
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Polymerizing, cross-linking, or curing
156272200, 156275100, 156290, 156308400, 156379600, 264241, 264261, 264263, 425174400, 425500, 425501, B29C 3508, B29C 7084
Patent
active
054878535
ABSTRACT:
A three-dimensional complex preform is made formed of various types of reinforcement fiberglass fibers with a binder at the interstices which rigidize the preform to the shape and form approximating the molded article, which can be handled and stored until a final mold is made filling the interstices with plastic and curing the plastic. Complex preforms require either specific reinforcements in the form of increased sections, specific reinforcement, or require modification or enlargement in size or increase in complexity by the attachment of one or more additional preforms. To modify an existing preform and obtain a desired shape and form, reinforcement members or additional preforms are attached by energetic stitching. Energetic stitching includes the application of an electromagnetic energy curable binder and the application of electromagnetic radiation to cure the binder. The stitching normally occurs over a restricted area defined by the contact surfaces to join two or more members and the restricted area is obtained in various forms such as by applying binders in preselect areas, or by applying the curing radiation in preselect areas or by masking the application of the binder or masking the application of the energy by controlling of the location and/or areas where the stitching is applied. Substantial modifications and flexibility in the type of resultant preform can be attained whether the preform has an add on reinforcement member or is formed by the attachment of one or more additional preforms to it to obtain a complex resultant preform.
REFERENCES:
patent: 3627609 (1971-12-01), Bragole
patent: 3740287 (1973-06-01), Eichhorn
patent: 3878019 (1975-04-01), Chapman et al.
patent: 3982185 (1976-09-01), Shinn et al.
patent: 4156626 (1979-05-01), Souder
patent: 4312692 (1982-01-01), Ikeda et al.
patent: 4509107 (1985-04-01), Malinowski
patent: 4698113 (1987-10-01), Ogawa
patent: 4916805 (1990-04-01), Ellrich et al.
patent: 5009731 (1991-04-01), Yoshikawa et al.
patent: 5064494 (1991-11-01), Duck et al.
patent: 5169571 (1992-12-01), Buckley
patent: 5173142 (1992-12-01), Billiu
patent: 5192387 (1993-03-01), Buckley
patent: 5217654 (1993-06-01), Buckley
patent: 5217656 (1993-06-01), Buckley et al.
patent: 5338169 (1994-08-01), Buckley
Smith Duane S.
The C. A. Lawton Company
Woo Jay H.
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