Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common... – Extrusion shaping means
Reexamination Certificate
2007-12-25
2007-12-25
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
Extrusion shaping means
C425S188000, C425S19200R, C425S462000
Reexamination Certificate
active
11102696
ABSTRACT:
An apparatus for manufacturing a strip of rubber compounds comprises four extruders (2a, 2b, 2c, 2d) and a single extruder head (3). The extruder head (3) comprises an extruder die assembly (6) and a main body (4). The main body (4) is composed of a pair of laterally-spaced lateral blocks (11), a central block (10) disposed between the lateral blocks, and a pair of laterally-spaced sub blocks (13) disposed beneath the lateral blocks (11). The central block (10) has a pair of V-form side faces (15) extending in a V-shaped formation down to lateral ends of the bottom face (S1). The lateral blocks (11) are each provided with an upper mount face (21U) and a lower mount face (21L) on which two of the four extruders are respectively attached. An upper preforming channel (24Ua,24Ub) extending from an extruder to the die assembly has a parting plane along the V-form side face (15). A lower preforming channel (24Lc,24Ld) extending from an extruder to the die assembly also has a parting plane.
REFERENCES:
patent: 4548568 (1985-10-01), Herbert et al.
patent: 4619599 (1986-10-01), Herbert et al.
patent: 4799874 (1989-01-01), Bellmer et al.
patent: 6695606 (2004-02-01), Burg et al.
The Rubber Machinery Guide Book—1998, p. 152.
Ohiwa Isao
Ohki Masahiko
Leyson Joseph
Mackey James P.
Sumitomo Rubber Industries Ltd.
LandOfFree
Apparatus for manufacturing rubber strip does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for manufacturing rubber strip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for manufacturing rubber strip will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3827165