Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common... – Extrusion shaping means
Patent
1980-10-20
1982-06-22
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
Extrusion shaping means
425376R, 425462, B29F 304, B29F 300
Patent
active
043360122
ABSTRACT:
The coextrusion device (20) of the present invention can be used with conventional extruders (24-26) and extrusion dies (90) for forming layered products (91) from at least two materials. It includes a manifold (21) for receiving a plurality of extruded feed materials (A, B, C) and a feedblock (22) receiving the feed materials from the manifold. The feedblock includes first and second faces (43, 52), entrance ports (40, 41, 42) in the first face corresponding to the number of feed materials, channel means (50, 60, 70) passing through the feedblock between the first and second faces directing each feed material into at least one separate profile, and exit ports (51, 61, 71) in the second face corresponding to the number of channel means, defining a first profile for each feed material. An adaptor (23) is provided for receiving the first profiles from the feedblock and includes first and second faces (82, 85), an entrance port (83) in the first face receiving said first profiles, an exit port (84) in the second face corresponding to the entrance of the extrusion die and, a transition zone (86) between the entrance and exit ports wherein the first profiles become contiguous and the overall configuration of the contiguous first profiles is adapted for receipt by the extrusion die. The device can further include a reverser plate (110) and alternate feedblocks (130) having different exit ports (139, 140, 152, 153).
REFERENCES:
patent: 3461197 (1969-08-01), Lemelson
patent: 3464087 (1969-09-01), Koch
patent: 3559239 (1971-02-01), Work et al.
patent: 3694292 (1972-09-01), Schippers et al.
patent: 3761211 (1973-09-01), Parkinson
patent: 3876743 (1975-04-01), Soderlund et al.
patent: 3985484 (1976-10-01), Takiura
patent: 4081232 (1978-03-01), Pemberton et al.
patent: 4144011 (1979-03-01), Sponaugle
Adams Richard C.
Bond Thomas J.
Koch Paul E.
Curatolo Joseph G.
Evans Larry W.
Hoag Willard E.
Knudsen Herbert D.
The Standard Oil Company
LandOfFree
Coextrusion device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coextrusion device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coextrusion device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-650805