Patent US3280239A successfully refreshed from Google Patents.
US3280239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic melt extruder and method of extrusion
Assignee: OI Glass Inc
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Filing: 1963-03-06
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Granted: 1966-10-18
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Expires: 1983-03-06
Abstract
No abstract record available.
Inventors
- 👤 Lawrence D Ninneman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:19
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/46; B29C48/03; B29C48/47
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
137 words
IN A METHOD OF EXTRUDING PLASTICIZED MATERIAL FROM A SHEAR GAP DEFINED BETWEEN RELATIVELY ROTATABLE SHEAR ROTOR AND SHEAR STATOR ELEMENTS, SAID GAP HAVING A PERIPHERAL WALL SMALLER THAN THE FACIAL DIAMETER OF SAID SHEAR ROTOR AND OF PROGRESSIVELY DECREASING RADIUS IN THE DIRECTION OF ROTATION OF SAID ROTOR, THE MATERIAL EXITING FROM THE GAP THROUGH AN EXTRUSION ORIFICE ALIGNED WITH THE AXIS OF ROTATION OF SAID ELEMENTS, THE STEPS OF FEEDING MATERIAL TO THE GAP IN A DIRECTION TANGENTIAL TO THE ROTOR, INITIALLY CONTACTING MATERIAL WITH A PERIPHERAL PORTION OF SAID ROTOR, ROTATIONALLY MOVING THE MATERIAL THROUGH SAID GAP BY ROTATION OF SAID ROTOR, AND PHYSICALLY CONTACTING THE MATERIAL ON THE ROTOR WITH SAID GAP WALL TO FORCE THE MATERIAL FROM THE ROTOR PERIPHERAL PORTION AND TOWARD SAID ORIFICE AS IT IS CONVEYED THROUGH SAID GAP.
Claim 2
Dependent Claim
137 words
IN A METHOD OF EXTRUDING PLASTICIZED MATERIAL FROM A SHEAR GAP DEFINED BETWEEN RELATIVELY ROTATABLE SHEAR ROTOR AND SHEAR STATOR ELEMENTS, SAID GAP HAVING A PERIPHERAL WALL SMALLER THAN THE FACIAL DIAMETER OF SAID SHEAR ROTOR AND OF PROGRESSIVELY DECREASING RADIUS IN THE DIRECTION OF ROTATION OF SAID ROTOR, THE MATERIAL EXITING FROM THE GAP THROUGH AN EXTRUSION ORIFICE ALIGNED WITH THE AXIS OF ROTATION OF SAID ELEMENTS, THE STEPS OF FEEDING MATERIAL TO THE GAP IN A DIRECTION TANGENTIAL TO THE ROTOR, INITIALLY CONTACTING MATERIAL WITH A PERIPHERAL PORTION OF SAID ROTOR, ROTATIONALLY MOVING THE MATERIAL THROUGH SAID GAP BY ROTATION OF SAID ROTOR, AND PHYSICALLY CONTACTING THE MATERIAL ON THE ROTOR WITH SAID GAP WALL TO FORCE THE MATERIAL FROM THE ROTOR PERIPHERAL PORTION AND TOWARD SAID ORIFICE AS IT IS CONVEYED THROUGH SAID GAP.
Claim 3
Dependent Claim
72 words
IN AN ELASTIC MELT EXTRUDER HAVING A ROTATABLE SHEAR ROTOR ELEMENT AND A FIXED SHEAR STATOR ELEMENT, THE IMPROVEMENTS OF A GAP PLATE INTERPOSED BETWEEN SAID ROTOR AND SAID STATOR ELEMENTS AND IN FACE-TO-FACE CONTACT THERE WITH, RESPECTIVELY, SAID GAP PLATE BEING OF A THICKNESS CORRESPONDING TO THE SHEAR GAP BETWEEN SAID ELEMENTS AND HAVING A CENTRAL APERTURE THEREIN DEFINING A SHEARING ZONE, SAID APERTURE BEING SPIROIDAL IN CONFIGURATION AND OF DE-
Claim 4
Dependent Claim
72 words
IN AN ELASTIC MELT EXTRUDER HAVING A ROTATABLE SHEAR ROTOR ELEMENT AND A FIXED SHEAR STATOR ELEMENT, THE IMPROVEMENTS OF A GAP PLATE INTERPOSED BETWEEN SAID ROTOR AND SAID STATOR ELEMENTS AND IN FACE-TO-FACE CONTACT THERE WITH, RESPECTIVELY, SAID GAP PLATE BEING OF A THICKNESS CORRESPONDING TO THE SHEAR GAP BETWEEN SAID ELEMENTS AND HAVING A CENTRAL APERTURE THEREIN DEFINING A SHEARING ZONE, SAID APERTURE BEING SPIROIDAL IN CONFIGURATION AND OF DE-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |