US2707304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balling drum
Assignee: Reserve Mining Co
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Filing: 1954-03-10
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Granted: 1955-05-03
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Expires: 1974-03-10
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Haley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:03
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
A DRUM FOR PELLETIZING PULVERANT METAL CONTAINING MATERIAL, MEANS MOUNTING SAID DRUM SO THAT ITS AXIS IS INCLINED DOWNWARDLY, THE UPPER END OF SAID DRUM ADAPTED TO RECEIVE A MOIST PULVERANT MATERIAL, THE LOWER END OF SAID DRUM BEING OPEN AND SERVING AS A DISCHARGE OPENING, MEANS FOR ROTATING THE DRUM, THE DISCHARGE END OF THE DRUM BEING PROVIDED WITH A SERIES OF SCALLOPS EXTENDING PERIPHERALLY WITH REGARD TO THE DISCHARGE END OF THE DRUM AND EXTENDING OUTWARDLY THEREFROM AND IN SPACED RELATION WITH RESPECT TO EACH OTHER, SAID SCALLOPS SERVING TO SPREAD THE MATERIAL AS IT IS DISCHARGES FROM THE DRUM.
References Cited (Backward Citations)
US1684006A
Cited
US1921114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |