US2710423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the preparation of fertilizer material
Assignee: Stauffer Chemical Co
•
Filing: 1953-08-25
•
Granted: 1955-06-14
•
Expires: 1973-08-25
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:44
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/12; B01J21/00; C; C05; C05B; C05B19/00; C05B19/02; C05G; C05G5/00; C05G5/10; C05G5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A DEVICE OF THE CHARACTER DESCRIBED, A DRUM, MEANS SUPPORTING THE DRUM FOR ROTATION ABOUT THE AXIS OF ROTATION OF THE DRUM, A CUTTER BAR EXTENDING ALONG IN CLOSE PROXIMITY TO THE INNER SURFACE OF THE DRUM ADJACENT THE TOP OF THE DRUM TO CUT MATERIAL ADHERING TO THE DRUM WALL AND RELEASE IT FOR A FREE GRAVITAL FALL IN SAID DRUM, AND A PLURALITY OF CUTTER BLADES SUPORTED FOR ROTATION IN SAID DRUM TO RECEIVE SAID MATERIAL FALLING IN THE DRUM AFTER CUTTING FROM THE DRUM BY SAID CUTTER BAR, SAID PLURALITY OF CUTTER BLADES BEING MOUNTED RADIALLY AND IN ROWS WITH ADJACENT BLADES IN EACH ROW SPACED APART TO PROVIDE A RELATIVELY NARROW PASSAGEWAY FOR MATERIAL BETWEEN SAID ADJACENT BLADES:
Claim 2
Dependent Claim
123 words
IN A DEVICE OF THE CHARACTER DESCRIBED, A DRUM, MEANS SUPPORTING THE DRUM FOR ROTATION ABOUT THE AXIS OF ROTATION OF THE DRUM, A CUTTER BAR EXTENDING ALONG IN CLOSE PROXIMITY TO THE INNER SURFACE OF THE DRUM ADJACENT THE TOP OF THE DRUM TO CUT MATERIAL ADHERING TO THE DRUM WALL AND RELEASE IT FOR A FREE GRAVITAL FALL IN SAID DRUM, AND A PLURALITY OF CUTTER BLADES SUPORTED FOR ROTATION IN SAID DRUM TO RECEIVE SAID MATERIAL FALLING IN THE DRUM AFTER CUTTING FROM THE DRUM BY SAID CUTTER BAR, SAID PLURALITY OF CUTTER BLADES BEING MOUNTED RADIALLY AND IN ROWS WITH ADJACENT BLADES IN EACH ROW SPACED APART TO PROVIDE A RELATIVELY NARROW PASSAGEWAY FOR MATERIAL BETWEEN SAID ADJACENT BLADES:
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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) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |