US3215355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed means for a refiner
Assignee: Bauer Brothers Co
•
Filing: 1963-02-27
•
Granted: 1965-11-02
•
Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Shouvlin
- 👤 Marvin E Ginaven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:50
CPC Classifications
D; D21; D21B; D21B1/00; D21B1/04; D21B1/12; D21B1/14; D21B1/18; D21B1/22; D21D; D21D1/00; D21D1/20; D21D1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A REFINER, INCLUDING A PAIR OF RELATIVELY ROTATABLE DISCS IN FACE TO FACE RELATION, MEANS DEFINING AN INLET TO THE SPACE BETWEEN SAID DISCS, A CONTINUOUS DUCT DELIVERING TL SAID INLET STOCK IN THE FORM OF A MIXTURE OF A LIQUID AND SOLIDS, SAID DUCT INCLUDING A SCREEN SECTION, AN ENCLOSED SECTION BEYOND SAID SCREEN SECTION AND A RELATIVELY REDUCED DIAMETER INTERMEDIATE ADAPTER SECTION, HELICAL PRESS MEANS IN SAID SCREEN SECTION ACCOMPLISHING A PREDETERMINED THICKENING OF THE STOCK AND ADVANCING IT INTO SAID ADAPTER SECTION, SAID HELICAL PRESS MEANS INCLUDING A PAIR OF COUNTER ROTATING SHAFTS AND FEED SCREW CONFIGURATION ON SAID SHAFTS OVERLAPPING SO THAT MATING PORTIONS OF THE SCREWS COOPERATE TO COMPRESS MATERIAL CARRIED THEREGY, FEED SCREW MEANS IN SAID ADAPTER SECTION ADVANC-
Claim 2
Dependent Claim
125 words
A REFINER, INCLUDING A PAIR OF RELATIVELY ROTATABLE DISCS IN FACE TO FACE RELATION, MEANS DEFINING AN INLET TO THE SPACE BETWEEN SAID DISCS, A CONTINUOUS DUCT DELIVERING TL SAID INLET STOCK IN THE FORM OF A MIXTURE OF A LIQUID AND SOLIDS, SAID DUCT INCLUDING A SCREEN SECTION, AN ENCLOSED SECTION BEYOND SAID SCREEN SECTION AND A RELATIVELY REDUCED DIAMETER INTERMEDIATE ADAPTER SECTION, HELICAL PRESS MEANS IN SAID SCREEN SECTION ACCOMPLISHING A PREDETERMINED THICKENING OF THE STOCK AND ADVANCING IT INTO SAID ADAPTER SECTION, SAID HELICAL PRESS MEANS INCLUDING A PAIR OF COUNTER ROTATING SHAFTS AND FEED SCREW CONFIGURATION ON SAID SHAFTS OVERLAPPING SO THAT MATING PORTIONS OF THE SCREWS COOPERATE TO COMPRESS MATERIAL CARRIED THEREGY, FEED SCREW MEANS IN SAID ADAPTER SECTION ADVANC-
References Cited (Backward Citations)
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Cited
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Cited
US3070005A
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |