Patent US3170775A successfully refreshed from Google Patents.
US3170775A
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Clinker cooler and stationary grate plates therefor
Assignee: Hanford Foundry Co
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Filing: 1963-04-15
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Granted: 1965-02-23
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry D Howell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:24
CPC Classifications
F; F27; F27D; F27D15/00; F27D15/02; F27D15/0206; F27D15/0213; F27D15/022; F27D2015/0226; F27D2015/0246; F27D2015/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN INTEGRAL RETENTION GRATE MEMBER FOR A RATE TYPE COOLER FOR CEMENT CLINKER COMPRISING A RECTANGULAR BASE PLATE HAVING AN EDGE ADAPTED TO BE POSITIONED DOWNSTREAM OF THE OTHER EDGES, RETAINER PLATES EXTENDING UPWARDLY FROM THE DOWNSTREAM EDGE AND FROM AND INTERMEDIATE POSITION ON SAID BASE PLATE TO FORM A DEEP POCKET FOR RETENTION OF CLINKER, SAID BASE PLATE BEING PERFORATED BETWEEN SAID RETAINER PLATES, AND ANCHORING MEANS EXTENDING FROM SAID BASE PLATE.
Claim 2
Dependent Claim
73 words
AN INTEGRAL RETENTION GRATE MEMBER FOR A RATE TYPE COOLER FOR CEMENT CLINKER COMPRISING A RECTANGULAR BASE PLATE HAVING AN EDGE ADAPTED TO BE POSITIONED DOWNSTREAM OF THE OTHER EDGES, RETAINER PLATES EXTENDING UPWARDLY FROM THE DOWNSTREAM EDGE AND FROM AND INTERMEDIATE POSITION ON SAID BASE PLATE TO FORM A DEEP POCKET FOR RETENTION OF CLINKER, SAID BASE PLATE BEING PERFORATED BETWEEN SAID RETAINER PLATES, AND ANCHORING MEANS EXTENDING FROM SAID BASE PLATE.
References Cited (Backward Citations)
US1753220A
Cited
US2431799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |