US3302893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc mill
Assignee: Wedco Inc
•
Filing: 1964-02-18
•
Granted: 1967-02-07
•
Expires: 1984-02-18
Abstract
No abstract record available.
Inventors
- 👤 Friedhelm R Feder
- 👤 John R Thomas
- 👤 William E Willoughby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:23
CPC Classifications
B; B02; B02C; B02C7/00; B02C7/02; B02C7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A DISC MILL COMPRISING: (A) A FIRST DISC AND A SECOND DISC, SAID DISCS BEING MOUNTED IN OPPOSED RELATION, A FIRST SHAFT HAVING SAID FIRST DISC MOUNTED THEREON AND EXTENDING AXIALLY OUTWARDLY FROM THE OPPOSED DISCS, A SECOND SHAFT HAVING SAID SECOND DISC MOUNTED THEREON AND EXTENDING AXIALLY OUTWARDLY OF THE OPPOSED DISCS IN A DIRECTION OPPOSITE TO THE DIRECTION IN WHICH THE FIRST SHAFT EXTENDS, (B) MEANS FOR DRIVING EACH OF SAID SHAFTS TO ROTATE THE DISCS IN OPPOSITE DIRECTIONS, (C) A SUPPORT FOR SAID FIRST SHAFT AND ITS DISC AND MEANS FOR MOVING SAID SUPPORT RELATIVE TO THE SECOND DISC FOR AXIALLY DIRECTED MOVEMENT OF THE FIRST SHAFT AND ITS DISC AWAY AND TOWARD THE SECOND DISC ALONG A DEFINED PATH, (D) FLUID PRESSURE MEANS FOR URGING THE MOVABLY SUPPORTED DISC TOWARD THE SECOND DISC,
Claim 2
Dependent Claim
137 words
A DISC MILL COMPRISING: (A) A FIRST DISC AND A SECOND DISC, SAID DISCS BEING MOUNTED IN OPPOSED RELATION, A FIRST SHAFT HAVING SAID FIRST DISC MOUNTED THEREON AND EXTENDING AXIALLY OUTWARDLY FROM THE OPPOSED DISCS, A SECOND SHAFT HAVING SAID SECOND DISC MOUNTED THEREON AND EXTENDING AXIALLY OUTWARDLY OF THE OPPOSED DISCS IN A DIRECTION OPPOSITE TO THE DIRECTION IN WHICH THE FIRST SHAFT EXTENDS, (B) MEANS FOR DRIVING EACH OF SAID SHAFTS TO ROTATE THE DISCS IN OPPOSITE DIRECTIONS, (C) A SUPPORT FOR SAID FIRST SHAFT AND ITS DISC AND MEANS FOR MOVING SAID SUPPORT RELATIVE TO THE SECOND DISC FOR AXIALLY DIRECTED MOVEMENT OF THE FIRST SHAFT AND ITS DISC AWAY AND TOWARD THE SECOND DISC ALONG A DEFINED PATH, (D) FLUID PRESSURE MEANS FOR URGING THE MOVABLY SUPPORTED DISC TOWARD THE SECOND DISC,
References Cited (Backward Citations)
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US2887277A
Cited
US3040996A
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US3212721A
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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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |