US2721806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling method and apparatus for processing cement clinker
Assignee: Monolith Portland Cement Co
•
Filing: 1952-04-05
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Granted: 1955-10-25
•
Expires: 1972-04-05
Abstract
No abstract record available.
Inventors
- 👤 Oberg Bertil Nils
- 👤 Humes William Y Conn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
F; F27; F27D; F27D15/00; F27D15/02; F27D15/0206; Y; Y10; Y10S; Y10S241/00; Y10S241/604
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
151 words
APPARATUS FOR PROCESSING HOT CEMENT CLINKER INCLUDING: A HORIZONTALLY EXTENDING COOLING CONVEYOR HAVING AN ELONGATED HORIZONTAL HOLLOW CONVEYING SCREW PROVIDING AN ELONGATED HELICAL PASSAGE FOR COOLING WATER THERETHROUGH, THEREBY PROVIDING FOR INDIRECTT HEAT EXCHANGE BETWEEN HOT CLINKER AND THE WATER IN SAID PASSAGE AS THE CLINKER IS MOVED ALONG THE CONVEYOR BY SAID SCREW; MEANS FOR FEEDING HOT CEMENT CLINKER FROM A CEMENT KILN BY GRAVITY DIRECTLY TO SAID CONVEYOR; A CRUSHER DISPOSED TO RECEIVED COOLED CLINKER FROM SAID CONVEYOR; A SECOND HORIZONTALLY EXTENDING COOLING CONVEYOR HAVING AN ELONGATED HORIZONTAL AGITATING HOLLOW SCREW PROVIDING AN ELONGATED HELICAL PASSAGE FOR COOLING WATER THERETHROUGH TO PROVIDE INDIRECT HEAT EXCHANGE BETWEEN CLINKER IN SUCH CONVEYOR AND WATER IN THE WATER PASSAGE THEREOF; MEANS TO DISCHARGE COOLED CLINKER FROM SAID SECOND CONVEYOR BY GRAVITY DIRECTLY TO CEMENT-REDUCING MEANS; AND CEMENTREDUCING MEANS DISPOSED TO RECEIVE COOLED CLINKER BY GRAVITY DIRECTLY FROM THE LAST MENTIONED DISCHARGE MEANS.
Claim 2
Dependent Claim
151 words
APPARATUS FOR PROCESSING HOT CEMENT CLINKER INCLUDING: A HORIZONTALLY EXTENDING COOLING CONVEYOR HAVING AN ELONGATED HORIZONTAL HOLLOW CONVEYING SCREW PROVIDING AN ELONGATED HELICAL PASSAGE FOR COOLING WATER THERETHROUGH, THEREBY PROVIDING FOR INDIRECTT HEAT EXCHANGE BETWEEN HOT CLINKER AND THE WATER IN SAID PASSAGE AS THE CLINKER IS MOVED ALONG THE CONVEYOR BY SAID SCREW; MEANS FOR FEEDING HOT CEMENT CLINKER FROM A CEMENT KILN BY GRAVITY DIRECTLY TO SAID CONVEYOR; A CRUSHER DISPOSED TO RECEIVED COOLED CLINKER FROM SAID CONVEYOR; A SECOND HORIZONTALLY EXTENDING COOLING CONVEYOR HAVING AN ELONGATED HORIZONTAL AGITATING HOLLOW SCREW PROVIDING AN ELONGATED HELICAL PASSAGE FOR COOLING WATER THERETHROUGH TO PROVIDE INDIRECT HEAT EXCHANGE BETWEEN CLINKER IN SUCH CONVEYOR AND WATER IN THE WATER PASSAGE THEREOF; MEANS TO DISCHARGE COOLED CLINKER FROM SAID SECOND CONVEYOR BY GRAVITY DIRECTLY TO CEMENT-REDUCING MEANS; AND CEMENTREDUCING MEANS DISPOSED TO RECEIVE COOLED CLINKER BY GRAVITY DIRECTLY FROM THE LAST MENTIONED DISCHARGE MEANS.
Claim 3
Independent Claim
23 words
A METHOD OF PROCESSING HOT CEMENT CLINKER WHICH INCLUDES THE SUCCESSIVE STEPS OF: REMOVING HOT CEMENT CLINKER FROM A CEMENT KILN; SIMULTANEOUSLY CONVEYING
Claim 4
Independent Claim
23 words
A METHOD OF PROCESSING HOT CEMENT CLINKER WHICH INCLUDES THE SUCCESSIVE STEPS OF: REMOVING HOT CEMENT CLINKER FROM A CEMENT KILN; SIMULTANEOUSLY CONVEYING
References Cited (Backward Citations)
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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) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |