US3043703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of hydraulic cement
Assignee: Fuller Co
•
Filing: 1958-08-05
•
Granted: 1962-07-10
•
Expires: 1978-08-05
Abstract
No abstract record available.
Inventors
- 👤 Richard G Schlauch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:52
CPC Classifications
C; C04; C04B; C04B7/00; C04B7/36; C04B7/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A METHOD FOR THE PRODUCTION OF HYDRAULIC CEMENT COMPRISING ESTABLISHING CEMENT-FORMING REACTION CONDITIONS IN A REACTION ZONE, INTRODUCING CEMENT-FORMING MATERIALS INTO THE REACTION ZONE, PASSING GASES CONTAINING VOLATILIZED MATTER DRIVEN OFF THE CEMENT-FORMING MATERIAL IN THE REACTION ZONE WHILE AT A TEMPERATURE ABOVE THE CONDENSATION POINT OF SAID VOLATILIZED MATTER THROUGH A DISCHARGE ZONE, CAUSING THE GASES PASSING THROUGH SAID DISCHARGE ZONE TO IMPINGE UPON A CONDENSING SURFACE, MAINTAINING A COOLING MEDIUM IN CONTACT WITH SAID CONDENSING SURFACE, CONTROLLING THE TRANSFER OF HEAT BETWEEN SAID COOLING MEDIUM AND SAID CONDENSED COMPONENT TO MAINTAIN SAID CONDENSING SURFACE AT A TEMPERATURE BELOW THE CONDENSATION POINT OF A VOLATILIZED COMPONENT OF SAID GASES, WHEREBY SAID VOLATILIZED COMPONENT WILL CONDENSE ON SAID CONDENSING SURFACE, AND TO MAINTAIN THE EXPOSED SURFACE OF SAID CONDENSED COMPONENT AT A TEMPERATURE AT WHICH IT IS IN A TACKY PHASE TO FACILITATE ADHERENCE THERETO OF SOLID MATTER ENTRAINED IN SAID GASES, REMOVING THE CONDENSED COMPONENT FROM SAID CONDENSING SURFACE IN SAID DISCHARGE ZONE, AND SEPARATELY DISCHARGING FROM SAID DISCHARGE ZONE THE REMOVED CONDENSED COMPONENT AND ADHERED SOLID MATTER, AND THE GASES FROM WHICH SAID COMPONENT WAS SEPARATED.
Claim 2
Independent Claim
188 words
A METHOD FOR THE PRODUCTION OF HYDRAULIC CEMENT COMPRISING ESTABLISHING CEMENT-FORMING REACTION CONDITIONS IN A REACTION ZONE, INTRODUCING CEMENT-FORMING MATERIALS INTO THE REACTION ZONE, PASSING GASES CONTAINING VOLATILIZED MATTER DRIVEN OFF THE CEMENT-FORMING MATERIAL IN THE REACTION ZONE WHILE AT A TEMPERATURE ABOVE THE CONDENSATION POINT OF SAID VOLATILIZED MATTER THROUGH A DISCHARGE ZONE, CAUSING THE GASES PASSING THROUGH SAID DISCHARGE ZONE TO IMPINGE UPON A CONDENSING SURFACE, MAINTAINING A COOLING MEDIUM IN CONTACT WITH SAID CONDENSING SURFACE, CONTROLLING THE TRANSFER OF HEAT BETWEEN SAID COOLING MEDIUM AND SAID CONDENSED COMPONENT TO MAINTAIN SAID CONDENSING SURFACE AT A TEMPERATURE BELOW THE CONDENSATION POINT OF A VOLATILIZED COMPONENT OF SAID GASES, WHEREBY SAID VOLATILIZED COMPONENT WILL CONDENSE ON SAID CONDENSING SURFACE, AND TO MAINTAIN THE EXPOSED SURFACE OF SAID CONDENSED COMPONENT AT A TEMPERATURE AT WHICH IT IS IN A TACKY PHASE TO FACILITATE ADHERENCE THERETO OF SOLID MATTER ENTRAINED IN SAID GASES, REMOVING THE CONDENSED COMPONENT FROM SAID CONDENSING SURFACE IN SAID DISCHARGE ZONE, AND SEPARATELY DISCHARGING FROM SAID DISCHARGE ZONE THE REMOVED CONDENSED COMPONENT AND ADHERED SOLID MATTER, AND THE GASES FROM WHICH SAID COMPONENT WAS SEPARATED.
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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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |