Patent US4560256A successfully refreshed from Google Patents.
Patent US3301289A successfully refreshed from Google Patents.
US3301289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Debarking drum construction
Assignee: Uniweld Inc
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Filing: 1964-10-12
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Granted: 1967-01-31
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Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:34
CPC Classifications
B; B27; B27L; B27L1/00; B27L1/02; B27L1/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
AN OPEN-ENDED CYLINDRICAL BARKING DRUM COMPRISING, A PLURALITY OF ELONGATED CYLINDRICAL MEMBERS CONNECTED TO AND SUPPORTED IN SPACED APART CIRCUMFERENTIAL ALIGNMENT BETWEEN A PAIR OF AXIALLY SPACED END PLATES OF ANNULAR FORMATION AND HAVING A GREATER RADIAL WIDTH THAN THICKNESS WITH A PLURALITY OF ANNULAR STIFFENING PLATES ALSO OF GREATER RADIAL WIDTH THAN THICKNESS MOUNTED ON SAID ELONGATED MEMBERS BETWEEN SAID END PLATES IN SPACED AXIAL RELATIONSHIP THEREWITH, EACH OF SAID ANNULAR STIFFENING PLATES HAVING ON ITS INNER SURFACE SPACED APART NOTCHES CORRESPONDING IN LOCATION TO SAID CIRCUMFERENTIALLY SPACING OF SAID ELONGATED MEMBERS AND BEING CONNECTED THERETO, AND ANNULAR DRIVING MEMBERS SURROUNDING SAID CIRCUMFERENTIALLY SPACED ELONGATED MEMBERS AT AXIALLY SPACED POINTS ALONG THE LENGTH OF SAID FRAMEWORK.
Claim 2
Dependent Claim
117 words
AN OPEN-ENDED CYLINDRICAL BARKING DRUM COMPRISING, A PLURALITY OF ELONGATED CYLINDRICAL MEMBERS CONNECTED TO AND SUPPORTED IN SPACED APART CIRCUMFERENTIAL ALIGNMENT BETWEEN A PAIR OF AXIALLY SPACED END PLATES OF ANNULAR FORMATION AND HAVING A GREATER RADIAL WIDTH THAN THICKNESS WITH A PLURALITY OF ANNULAR STIFFENING PLATES ALSO OF GREATER RADIAL WIDTH THAN THICKNESS MOUNTED ON SAID ELONGATED MEMBERS BETWEEN SAID END PLATES IN SPACED AXIAL RELATIONSHIP THEREWITH, EACH OF SAID ANNULAR STIFFENING PLATES HAVING ON ITS INNER SURFACE SPACED APART NOTCHES CORRESPONDING IN LOCATION TO SAID CIRCUMFERENTIALLY SPACING OF SAID ELONGATED MEMBERS AND BEING CONNECTED THERETO, AND ANNULAR DRIVING MEMBERS SURROUNDING SAID CIRCUMFERENTIALLY SPACED ELONGATED MEMBERS AT AXIALLY SPACED POINTS ALONG THE LENGTH OF SAID FRAMEWORK.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |