Plastic article or earthenware shaping or treating: apparatus – Air felting type shaping means – With particle liberating means
Patent
1985-04-12
1987-03-17
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Air felting type shaping means
With particle liberating means
19304, 19305, 156 624, 209388, 425 831, 425401, 425DIG60, D04H 100
Patent
active
046504095
ABSTRACT:
The formation head comprises a casing of substantially rectangular configuration in plan view provided with a perforated flat bottom-screen or sieve, and with a top wall having a number of openings communicating with the atmosphere. Opening into said casing is a conduit for feeding a flow of air-fluidized disintegrated fibers. A plurality of spaced parallel, horizontal rollers are rotatably mounted close to the perforated bottom of the said head structure. The said rollers are supported so as to be translated parallely to the bottom of the said structure. The said rollers are each provided with a plurality of peripheral radial needles. At a short distance from the bottom of the casing, parallely thereto, a moving web is mounted, cooperating with an underlying vacuum chamber onto which the screened fibers are deposited in a thin layer (S).
REFERENCES:
patent: 2269085 (1942-01-01), Morgan
patent: 2841154 (1958-07-01), Dearsley
patent: 4112549 (1978-09-01), Min et al.
patent: 4144619 (1979-03-01), White et al.
patent: 4287064 (1981-09-01), Ando et al.
Baroffio Romano
Chiellini Enzo
Fonzi Giorgio
Ghisu Giuseppe
Nistri Ugo
Hoag Willard E.
Mira Lanza S.p.A.
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