Agitating – Rubber or heavy plastic working – With specified feed means
Patent
1991-06-06
1993-11-16
Hornsby, Harvey C.
Agitating
Rubber or heavy plastic working
With specified feed means
366150, 425208, B01F 1502
Patent
active
052617408
ABSTRACT:
A one-piece barrel for a hot-fed extruder extends from drive means at its upstream end to its discharge mouth near the downstream end of the feed screw. This one-piece extruder barrel has a split-level, in-feed opening adapted for connecting a strong, reinforcing converging hopper in close tolerance therewith for feeding molten plastic into the extruder barrel through this in-feed opening. A feed screw propels along the barrel molten plastic fed into the barrel through the in-feed opening. The barrel is a one-piece, integral, strong, cylindrical member with an axial bore whose entire length may be finish machined at one time. Such one-time finishing of the entire bore of a barrel is not possible in prior hot-fed extruder barrels, because they were built up from multiple sections assembled end-to-end to form the whole barrel. A one-piece barrel aligns more easily with the feedscrew and prevents leakage by absence of joints and is less expensive to manufacture than costly machining and time-consuming assembly of prior multiple-part, hot-fed extruder barrels. Moreover, the converging hopper is welded into a strong, integral, box-like unit with strong upstream and downstream mounting flanges. The hopper is assembled with close tolerance reinforcement fitting relationship into the relatively large in-feed opening for strengthening the barrel near this opening. This strong hopper spans across the large in-feed opening serving as a reinforcement bridge for this opening.
REFERENCES:
patent: 2469999 (1949-05-01), Stober
patent: 2547000 (1951-04-01), Gray
patent: 2947030 (1960-08-01), Varn
patent: 3649147 (1972-03-01), Fritsch
patent: 3998439 (1976-12-01), Feix
patent: 4110843 (1978-08-01), Skidmore
patent: 4143974 (1979-03-01), Strassheimer
patent: 4170446 (1979-10-01), Schutz
patent: 4249877 (1981-02-01), Machen
patent: 4310251 (1982-01-01), Scharer et al.
patent: 4411531 (1983-10-01), Holmes
patent: 4616989 (1986-10-01), Mewes
patent: 4629411 (1986-12-01), Bucheler
patent: 4718770 (1988-01-01), Christy
Sales Information Booklet, CP-45, "C" Series, Mar. 1982 by Farrel Machinery Group of Emhart Corp.
First Perspective Drawing, Second Perspective Drawing (in color) Capsule Specifications-Farrel Processor (CP-45), All engineering drawings, particularly 605-00026 and 605-00018, and Specification, pp. 1-9 at rear of booklet.
Mosher Douglas E.
Sardinskas Stuart A.
Chin Randall E.
Farrel Corporation
Hornsby Harvey C.
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