US3208741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and system for the automatic controlling of grid coolers or traveling grids
Assignee: Rheinische Kalksteinwerke GmbH
•
Filing: 1961-09-20
•
Granted: 1965-09-28
•
Expires: 1981-09-20
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:15
CPC Classifications
G; G05; G05D; G05D27/00; G05D27/02; F; F27; F27D; F27D15/00; F27D15/02; F27D15/0206; F27D15/0213; F27D19/00; F27D15/022; F27D2015/0233; F27D2019/0006; F27D2019/0025; F27D2019/0028; F27D2019/0059; F27D2019/0068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
SYSTEM FOR AUTOMATIC CONTROL OF A PLANT OF THE CHARACTER DESCRIBED INCLUDING A KILN AND A TRAVELING GRID COOLER FOR MATERIAL DELIVERED FROM THE KILN, BASED UPON THE MAINTENANCE OF A PREDETERMINED GRID PLATE TEMPERATURE RANGE, MEANS FOR MEASURING TEMPERATURE OF THE GRID, MEANS TO DELIVER AIR TO THE GRID FOR COOLING SAID GRID AND MATERIAL, MEANS FOR VARYING THE AIR FLOW TO VARY THE GRID TEMPERATURE TO REDUCE CHANGE IN THE GRID TEMPERATURE AND TEND TO MAINTAIN THE GRID TEMPERATURE WITHIN A SELECTED TEMPERATURE RANGE, SAID MEANS FOR VARYING AIR FLOW BEING RESPONSIVE TO SAID TEMPERATURE MEASURING MEANS, AND MEANS FOR VARYING THE SPEED OF THE GRID TO VARY THE SPEED OF ADVANCE OF THE MATERIAL BY THE GRID UPON THE GRID TEMPERATURE BECOMING OUTSIDE OF SAID RANGE TO RETURN THE GRID TEMPERATURE TO WITHIN SAID RANGE, SAID MEANS FOR VARYING SPEED OF THE GRID ALSO BEING RESPONSIVE TO THE SAID TEMPERATURE MEASURING MEANS.
Claim 2
Dependent Claim
155 words
SYSTEM FOR AUTOMATIC CONTROL OF A PLANT OF THE CHARACTER DESCRIBED INCLUDING A KILN AND A TRAVELING GRID COOLER FOR MATERIAL DELIVERED FROM THE KILN, BASED UPON THE MAINTENANCE OF A PREDETERMINED GRID PLATE TEMPERATURE RANGE, MEANS FOR MEASURING TEMPERATURE OF THE GRID, MEANS TO DELIVER AIR TO THE GRID FOR COOLING SAID GRID AND MATERIAL, MEANS FOR VARYING THE AIR FLOW TO VARY THE GRID TEMPERATURE TO REDUCE CHANGE IN THE GRID TEMPERATURE AND TEND TO MAINTAIN THE GRID TEMPERATURE WITHIN A SELECTED TEMPERATURE RANGE, SAID MEANS FOR VARYING AIR FLOW BEING RESPONSIVE TO SAID TEMPERATURE MEASURING MEANS, AND MEANS FOR VARYING THE SPEED OF THE GRID TO VARY THE SPEED OF ADVANCE OF THE MATERIAL BY THE GRID UPON THE GRID TEMPERATURE BECOMING OUTSIDE OF SAID RANGE TO RETURN THE GRID TEMPERATURE TO WITHIN SAID RANGE, SAID MEANS FOR VARYING SPEED OF THE GRID ALSO BEING RESPONSIVE TO THE SAID TEMPERATURE MEASURING MEANS.
References Cited (Backward Citations)
US2041142A
Cited
US2084976A
Cited
US2031049A
Cited
US2068574A
Cited
US2095446A
Cited
US2214345A
Cited
US2879983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |