Patent US3230596A successfully refreshed from Google Patents.
US3230596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment for burning refractory products
Assignee: Saint Gobain Abrasives Inc
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Filing: 1962-03-26
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Granted: 1966-01-25
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Batigne Jean
- 👤 Didier Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:50
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/24; F27B9/2407; F27B9/2423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A KILN FOR FIRING AN ELONGATED CERAMIC PRODUCT OR THE LIKE COMPRISING A HIGH TEMPERATURE FIRING ZONE IN SAID KILN, A ROTATABLE TUBE EXTENDING INTO THE ENTRANCE PORTION OF THE FIRING ZONE OF THE KILN, A SECOND ROTATABLE TUBE EXTENDING FROM THE EXIT PORTION OF THE FIRING ZONE OF THE KILN IN AXIAL ALIGNMENT WITH SAID FIRST TUBE, MEANS TO ROTATE SAID FIRST AND SECOND TUBE AT THE SAME RATE IN THE SAME DIRECTION ABOUT THEIR RESPECTIVE LONGITUDINAL AXES, AND SYNCHRONOUSLY DRIVEN MEANS TO FEED THE PRODUCT LONGITUDINALLY THROUGH TUBES AND FINING ZONE OF THE KILN, SAID MEANS TO ROTATE SAID FIRST AND SECOND TUBE BEING INDEPENDENT OF SAID MEANS TO FEED THE PRODUCT THROUGH SAID TUBES.
Claim 2
Dependent Claim
117 words
A KILN FOR FIRING AN ELONGATED CERAMIC PRODUCT OR THE LIKE COMPRISING A HIGH TEMPERATURE FIRING ZONE IN SAID KILN, A ROTATABLE TUBE EXTENDING INTO THE ENTRANCE PORTION OF THE FIRING ZONE OF THE KILN, A SECOND ROTATABLE TUBE EXTENDING FROM THE EXIT PORTION OF THE FIRING ZONE OF THE KILN IN AXIAL ALIGNMENT WITH SAID FIRST TUBE, MEANS TO ROTATE SAID FIRST AND SECOND TUBE AT THE SAME RATE IN THE SAME DIRECTION ABOUT THEIR RESPECTIVE LONGITUDINAL AXES, AND SYNCHRONOUSLY DRIVEN MEANS TO FEED THE PRODUCT LONGITUDINALLY THROUGH TUBES AND FINING ZONE OF THE KILN, SAID MEANS TO ROTATE SAID FIRST AND SECOND TUBE BEING INDEPENDENT OF SAID MEANS TO FEED THE PRODUCT THROUGH SAID TUBES.
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |