Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common... – Extrusion shaping means
Patent
1978-03-24
1980-05-20
Thurlow, Jeffery R.
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
Extrusion shaping means
264173, 4251331, 425462, B29F 304
Patent
active
042037158
ABSTRACT:
A rotating joint assembly for feeding an extrusion die with two or more thermoplastic layers of a consistent uniformity of distribution including a stationary manifold for receiving two or more thermoplastic streams and conveying the streams to discharge openings in the manifold, and a cylindrical conduit rotatably connected to the manifold, the conduit having intake openings aligned with discharge openings in the stationary base for receiving and conveying thermoplastic streams from the base to an extrusion die and an axial channel aligned with an axial channel in the stationary manifold for receiving and conveying one of the thermoplastic streams to the die.
REFERENCES:
patent: 2174779 (1939-10-01), Delorme
patent: 3520966 (1970-07-01), Soffiantini
patent: 3802826 (1974-04-01), St. Eve
patent: 3966861 (1976-06-01), Papesh et al.
Miller C. W.
Raley Garland E.
Smith D. L.
Ethyl Corporation
Johnson Donald L.
Ray David L.
Sieberth John F.
Thurlow Jeffery R.
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