Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1990-12-17
1992-09-01
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
65 44, 428108, B32B 504, B32B 508, B32B 512, C03B 3702
Patent
active
051437813
ABSTRACT:
We have developed a new pattern for continuous strand fiberglass mat which gives improved torsional rigidity to the molded structure. The pattern is basically an elongated elliptical loop where the strands lay on the conveyor and look like lazy whirl formations or concentric circles with diameters dependent upon properties such as bending rigidity and torsional rigidity. The lay-down pattern looks cycloidal in nature. Elongated elliptical strand loops become further elongated until at some point they also contain "pigtails" or somewhat straight strands with small elliptical loops oriented in the cross-machine direction.
REFERENCES:
patent: 3616143 (1971-10-01), Langlois
patent: 4615717 (1986-10-01), Newbayer et al.
patent: 4955999 (1990-09-01), Schaefer et al.
patent: 4961769 (1990-10-01), Miller et al.
Dunbar Sidney G.
Goss Lee J.
Cannon James C.
Owens-Corning Fiberglas Corporation
Pacella Patrick P.
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