US5200204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary extruder with integral auger feed assembly
Assignee: INNOTEK WORLD RESINS LLC
•
Filing: 1991-03-11
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Granted: 1993-04-06
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Expires: 2011-03-11
Abstract
Abstract A rotary extruder having an integral auger feed assembly operatively connected to the extruder barrel, the auger feed assembly being adapted to introduce feed material directly into the annular space between the rotor and barrel of the rotor extruder. The apparatus is particularly useful for feeding low bulk density feed materials to a rotary extruder.
Inventors
- 👤 Douglas J. Horton
- 👤 Richard L. Abner, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:13
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/76; B29C48/765; B29C48/766; B29C48/767; B29C48/375; B29C48/465; B29C48/467; B29C48/468; B29C48/68; B29C48/6801; B29C48/03
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
82 words
An extrusion device comprising: a rotary extruder having a barrel with an eccentric bore, a rotor with a continuous cylindrical surface rotatably mounted within the bore, defining an annulus between the rotor and the eccentric bore; and an integral auger feed assembly having a barrel member with a longitudinal bore communicating in perpendicular relation with the annulus, an auger rotatably mounted within the longitudinal bore, and means for limiting heat transfer between the barrel of the rotary extruder and the barrel member.
Claim 2
Dependent Claim
82 words
An extrusion device comprising: a rotary extruder having a barrel with an eccentric bore, a rotor with a continuous cylindrical surface rotatably mounted within the bore, defining an annulus between the rotor and the eccentric bore; and an integral auger feed assembly having a barrel member with a longitudinal bore communicating in perpendicular relation with the annulus, an auger rotatably mounted within the longitudinal bore, and means for limiting heat transfer between the barrel of the rotary extruder and the barrel member.
Claim 3
Dependent Claim
49 words
The extrusion device of claim 1 wherein the barrel of the rotary extruder further comprises at least one vent passage disposed above that portion of the annulus into which auger discharges feed material, the vent passage being adapted to vent volatile matter from the barrel of the rotary extruder.
Claim 4
Dependent Claim
16 words
The extrusion device of claim 1 comprising a plurality of circumferentially spaced integral auger feed assemblies.
Claim 5
Dependent Claim
31 words
The extrusion device of claim 1 further comprising at least one feed port in the barrel adapted to supply feed material to the annulus of said rotary extruder by gravity flow.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-05 | 1996-10-05 | 1997-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-05 | 2000-10-05 | 2001-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-05 | 2004-10-05 | 2005-04-06 | $7700.00 | Window Closed / Lapsed |