Patent US550750A successfully refreshed from Google Patents.
US3124338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
harris
Assignee: —
•
Filing: —
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Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/14; F27B7/16; F27B7/161; F27B7/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A ROTARY KILN FOR TREATING PARTICULATE MATTER COMPRISING: (A) AN ELONGATED HOLLOW SHELL, (B) MEANS FOR ROTATING THE SHELL ABOUT ITS LONGITUDINAL AXIS, AND (C) A PLURALITY OF PLOWING ELEMENTS MOUNTED ON THE INTERIOR OF THE SHELL AND HAVING: (1) A LEADING EDGE ORIENTED IN THE DIRECTION OF ROTATION OF THE SHELL AND PROJECTING INWARDLY FROM THE INTERIOR OF THE SHELL, AND (2) TWO TURNING SURFACES HAVING AN OUTER EDGE ADJACENT THE INTERIOR OF THE SHELL AND AN INNER EDGE SPACED INWARDLY FROM THE INTERIOR OF THE SHELL, EACH DIVERGING FROM A TRANSVERSE PLANE PASSING THROUGH THE LEADING EDGE, (3) EACH POINT ON THE OUTER EDGE OF THE TURNING SURFACE BEING LOCATED SUBSTANTIALLY CLOSER TO THE TRANSVERSE PLANE THAN A CORRESPONDING OPPOSITE POINT ON THE INNER EDGE OF THE TURNING SURFACE, (4) THE PLOWING ELEMENTS ACTING UPON ROTATION OF THE SHELL TO PLOW PARTICULATE MATTER FROM ADJACENT THE INTERIOR SURFACE OF THE SHELL AND TO ROLL IT OVER ON PARTICULATE MATTER SPACED FROM THE INTERIOR SURFACE OF THE SHELL.
Claim 2
Dependent Claim
169 words
A ROTARY KILN FOR TREATING PARTICULATE MATTER COMPRISING: (A) AN ELONGATED HOLLOW SHELL, (B) MEANS FOR ROTATING THE SHELL ABOUT ITS LONGITUDINAL AXIS, AND (C) A PLURALITY OF PLOWING ELEMENTS MOUNTED ON THE INTERIOR OF THE SHELL AND HAVING: (1) A LEADING EDGE ORIENTED IN THE DIRECTION OF ROTATION OF THE SHELL AND PROJECTING INWARDLY FROM THE INTERIOR OF THE SHELL, AND (2) TWO TURNING SURFACES HAVING AN OUTER EDGE ADJACENT THE INTERIOR OF THE SHELL AND AN INNER EDGE SPACED INWARDLY FROM THE INTERIOR OF THE SHELL, EACH DIVERGING FROM A TRANSVERSE PLANE PASSING THROUGH THE LEADING EDGE, (3) EACH POINT ON THE OUTER EDGE OF THE TURNING SURFACE BEING LOCATED SUBSTANTIALLY CLOSER TO THE TRANSVERSE PLANE THAN A CORRESPONDING OPPOSITE POINT ON THE INNER EDGE OF THE TURNING SURFACE, (4) THE PLOWING ELEMENTS ACTING UPON ROTATION OF THE SHELL TO PLOW PARTICULATE MATTER FROM ADJACENT THE INTERIOR SURFACE OF THE SHELL AND TO ROLL IT OVER ON PARTICULATE MATTER SPACED FROM THE INTERIOR SURFACE OF THE SHELL.
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |