Plastic article or earthenware shaping or treating: apparatus – Air felting type shaping means – With particle liberating means
Patent
1977-06-27
1978-10-31
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
Air felting type shaping means
With particle liberating means
425 831, 425224, 264112, B29D 708
Patent
active
041232127
ABSTRACT:
A process and an apparatus for substantially uniformly distributing glass fibers onto a forming bed. The apparatus is mounted above the bed for movement relative thereto along the length of the bed and is receptive of glass fibers for chopping same into desired lengths. A hood structure is downstream of the chopping and comprises three chambers. A first chamber defining a receiving zone in the process receives the chopped glass fibers which are dropped into the hood and a second chamber defining a dispersing zone is in communication with the first chamber and downstream thereof and disperses the glass fibers received from the first chamber to effect a random uniform matrix thereof along the width of the bed. The dispersion is carried out by a turbulence that is created within the chamber. The third chamber defining a distributing zone is disposed downstream of the second chamber and has an adjustable length elongated outlet aperture which extends across a desired width of the bed. The third chamber receives the dispersed glass fibers in the random uniform matrix and substantially isolates the fibers therein from the turbulence in the second chamber for substantially uniformly distributing the glass fibers therein on the desired width of the bed by dropping same through the aperture during relative movement of the apparatus along the length of the bed.
REFERENCES:
patent: 2317895 (1943-04-01), Drill
patent: 2331145 (1943-10-01), Slayter
patent: 2702069 (1955-02-01), Lannan
patent: 2711381 (1955-06-01), Novotny et al.
patent: 2847701 (1958-08-01), Welch
patent: 2969301 (1961-01-01), Finger
patent: 3044111 (1962-07-01), Caughey
patent: 3071180 (1963-01-01), Finger et al.
patent: 3150025 (1964-09-01), Slayter et al.
Maso-Therm Corporation
Spicer, Jr. Robert L.
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