Paper making and fiber liberation – Processes and products – Including solid non-waterlaid preform
Patent
1979-11-27
1981-10-13
Lindsay, Jr., Robert L.
Paper making and fiber liberation
Processes and products
Including solid non-waterlaid preform
162108, 162156, 162184, 162299, 162322, 162350, D21H 382
Patent
active
042946557
ABSTRACT:
A machine and method of forming fiberglass mats. Chopped glass fibers are mixed with water in a slurry and a movable screen is passed, generally upwardly, through a slurry. As the screen is moved, its surface is uniformly coated with the glass fibers in a uniformly increasing depth, dependent upon the length of travel of the screen through the slurry. Longitudinally oriented and randomly oriented continuous strands are projected onto the fibers captured on the screen at different locations in order to provide the resultant mat with tear strength in all directions. The screen passes over a vacuum for removal of most of the water from the workpiece; subsequently, a binder is added to the workpiece and the continuous mat is passed through an oven for curing of the binder. The mat is then wound upon a spool for later transport to a location in which the mat can be processed into a final product.
REFERENCES:
patent: 2653090 (1953-09-01), Crandall
patent: 2699389 (1955-01-01), Crandall
patent: 2731066 (1956-01-01), Hogendobler et al.
patent: 2875503 (1959-03-01), Frickert et al.
patent: 3293116 (1966-12-01), Operbeck et al.
patent: 3758375 (1973-09-01), Keib et al.
patent: 3892622 (1975-07-01), Skaugen
patent: 3905067 (1975-09-01), Keib et al.
Consolidated Fiberglass Products Company
Lindsay, Jr. Robert L.
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