US3135504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary kiln
Assignee: Mckay Co
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Filing: 1962-10-01
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Granted: 1964-06-02
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Expires: 1982-10-01
Abstract
No abstract record available.
Inventors
- 👤 Paul E Chisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:57
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/14; F27B7/16; F27B7/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A ROTARY KILN CONTAINING A HEAT TRANSFER ELEMENT IN THE FORM OF A CHAIN HAVING PORTIONS CONNECTED WITH THE KILN AND FESTOONED WITHIN THE KILN SO THAT AS THE KILN ROTATES THE LINKS OF THE CHAIN LIE ON THE BOTTOM OF THE KILN IN INTIMATE CONTACT WITH THE MATERIAL BEING TREATED AND SHIFT RELATIVELY TO EACH OTHER AND THEREAFTER ARE WITHDRAWN UPWARDLY, THE CHAIN COMPRISING INTERLOOPED LINKS OF METAL BARS, SAID BARS HAVING SURFACES COMPRISING RELATIVELY PROJECTING PORTIONS AND RELATIVELY DEPRESSED PORTIONS IN REPETITIVE PATTERN AND BEING BENT INTO GENERALLY HOLLOW FORM, EACH LINK HAVING AN INTERNAL SPACE AND A THICKNESS, THE LINKS ENHANCING THE HEAT TRANSFER EFFICIENCY OF THE HEAT TRANSFER ELEMENT, THE SMALLEST TRANSVERSE DIMENSION OF THE INTERNAL SPACE OF EACH LINK BEING GREATER THAN THE THICKNESS THEREOF IN THE DIRECTION PERPENDICULAR TO THE GENERAL PLANE OF THE LINK, SO THAT ADJACENT LINKS MAY SHIFT FREELY RELATIVELY TO EACH OTHER IN A DIRECTION GENERALLY LENGTHWISE OF THE CHAIN AS THE KILN ROTATES WHEREBY PROJECTING PORTIONS OF ADJACENT LINKS MAY SLIDINGLY ENGAGE EACH OTHER CAUSING JOLTING OF THE LINKS WITH CONSEQUENT LOOSENING OF MATERIAL TENDING TO CLING THERETO.
Claim 2
Dependent Claim
189 words
A ROTARY KILN CONTAINING A HEAT TRANSFER ELEMENT IN THE FORM OF A CHAIN HAVING PORTIONS CONNECTED WITH THE KILN AND FESTOONED WITHIN THE KILN SO THAT AS THE KILN ROTATES THE LINKS OF THE CHAIN LIE ON THE BOTTOM OF THE KILN IN INTIMATE CONTACT WITH THE MATERIAL BEING TREATED AND SHIFT RELATIVELY TO EACH OTHER AND THEREAFTER ARE WITHDRAWN UPWARDLY, THE CHAIN COMPRISING INTERLOOPED LINKS OF METAL BARS, SAID BARS HAVING SURFACES COMPRISING RELATIVELY PROJECTING PORTIONS AND RELATIVELY DEPRESSED PORTIONS IN REPETITIVE PATTERN AND BEING BENT INTO GENERALLY HOLLOW FORM, EACH LINK HAVING AN INTERNAL SPACE AND A THICKNESS, THE LINKS ENHANCING THE HEAT TRANSFER EFFICIENCY OF THE HEAT TRANSFER ELEMENT, THE SMALLEST TRANSVERSE DIMENSION OF THE INTERNAL SPACE OF EACH LINK BEING GREATER THAN THE THICKNESS THEREOF IN THE DIRECTION PERPENDICULAR TO THE GENERAL PLANE OF THE LINK, SO THAT ADJACENT LINKS MAY SHIFT FREELY RELATIVELY TO EACH OTHER IN A DIRECTION GENERALLY LENGTHWISE OF THE CHAIN AS THE KILN ROTATES WHEREBY PROJECTING PORTIONS OF ADJACENT LINKS MAY SLIDINGLY ENGAGE EACH OTHER CAUSING JOLTING OF THE LINKS WITH CONSEQUENT LOOSENING OF MATERIAL TENDING TO CLING THERETO.
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |