US3169016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kiln
Assignee: Harbison Walker Refractories Co
•
Filing: 1963-05-02
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Granted: 1965-02-09
•
Expires: 1983-05-02
Abstract
No abstract record available.
Inventors
- 👤 Oscar M Wicken
- 👤 Richard R Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:40
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/02; F27B7/04; B; B01; B01J; B01J19/00; B01J19/28; B01J6/00; F26; F26B; F26B11/00; F26B11/02; F26B11/04; F26B11/0404; F26B11/0409; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00121; B01J2219/0015; B01J2219/00155; B01J2219/18; B01J2219/187; F27B2007/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A ROTARY KILN OF THE TYPE INCLUDING AN INCLINED CYLINDRICAL SHELL HAVING A REFRACTORY MATERIAL LINING AND ADAPTED TO PASS A LOAD OF FLUENT MATERIAL INTO CONTACT WITH A STREAM OF HOT COMBUSTION GASES, MEANS FOR LIFTING THE FLUENT MATERIAL AND DROPPING IT THROUGH THE HOT COMBUSTION GASES COMPRISING A PLURALTIY OF REFRACTORY BAFFLES EXTENDING AT LEAST AN INTERMEDIATE LONGITUDINAL PORTION OF THE SHELL, SAID BAFFLES HAVING AN OUTER FILLET-SHAPED SECTION MERGING WITH THE REFRACTORY LINING IN THE CYLINDRICAL SHELL, AN INNER FILLET-SHAPED SECTION AND AN INTERMEDIATE SECTION EXTENDING BETWEEN SAID INNER AND OUTER SECTIONS COVERGING CENTRALLY THEREOF TO PROVIDE INDEPENDENT SUPPORT FOR SAID BAFFLES, SAID INTERMEDIATE SECTION BEING FORMED OF STAGGERED TIERS OF REFRACTORY BRICK CONSISTING AT LEAST IN PART OF COMPLEMENTARY TONGUE AND GROOVE BRICK IN THE
Claim 2
Dependent Claim
130 words
IN A ROTARY KILN OF THE TYPE INCLUDING AN INCLINED CYLINDRICAL SHELL HAVING A REFRACTORY MATERIAL LINING AND ADAPTED TO PASS A LOAD OF FLUENT MATERIAL INTO CONTACT WITH A STREAM OF HOT COMBUSTION GASES, MEANS FOR LIFTING THE FLUENT MATERIAL AND DROPPING IT THROUGH THE HOT COMBUSTION GASES COMPRISING A PLURALTIY OF REFRACTORY BAFFLES EXTENDING AT LEAST AN INTERMEDIATE LONGITUDINAL PORTION OF THE SHELL, SAID BAFFLES HAVING AN OUTER FILLET-SHAPED SECTION MERGING WITH THE REFRACTORY LINING IN THE CYLINDRICAL SHELL, AN INNER FILLET-SHAPED SECTION AND AN INTERMEDIATE SECTION EXTENDING BETWEEN SAID INNER AND OUTER SECTIONS COVERGING CENTRALLY THEREOF TO PROVIDE INDEPENDENT SUPPORT FOR SAID BAFFLES, SAID INTERMEDIATE SECTION BEING FORMED OF STAGGERED TIERS OF REFRACTORY BRICK CONSISTING AT LEAST IN PART OF COMPLEMENTARY TONGUE AND GROOVE BRICK IN THE
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) | 1968-02-09 | 1968-08-10 | 1969-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-09 | 1972-08-10 | 1973-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-09 | 1976-08-10 | 1977-02-09 | $7700.00 | Window Closed / Lapsed |