US2770543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recirculating convection current cooler and method
Assignee: Individual
•
Filing: 1950-11-24
•
Granted: 1956-11-13
•
Expires: 1970-11-24
Abstract
No abstract record available.
Inventors
- 👤 Gerald D Arnold
- 👤 Alexander A Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:11
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/14; B; B65; B65G; B65G53/00; B65G2812/00; B65G2812/16; B65G2812/1608; B65G2812/1616; B65G2812/1625
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A METHOD OF REFRIGERATING SOLIDS IN A STREAM OF GAS CONTAINING MOISTURE, SAID METHOD COMPRISING CIRCULATING GASES IN A CLOSED CIRCUIT, DELIVERING THE SOLIDS TO BE COOLED INTO SAID CIRCUIT AT ONE POINT FOR ADVANCE THEREIN BY THE CIRCULATING GASES, SEPARATING THE SOLIDS FROM THE CIRCULATING GASES AND DISCHARGING THE SOLIDS FROM ANOTHER POINT IN THE CIRCUIT, AND PASSING BOTH THE GASES AND SOLIDS OVER REFRIGERATING HEAT EXCHANGE SURFACES AT A POINT INTERMEDIATE THE POINT OF ADMISSION AND THE POINT OF DISCHARGE OF THE SOLIDS AT SCOURING SPEEDS WHEREBY THE IMPACT OF SAID SOLIDS AGAINST SAID SURFACES SCOURS SAID SURFACE AND PREVENTS ACCUMULATION OF LIQUIDS OR SOLIDS THEREON, SAID REFRIGERATING HEAT EXCHANGE SURFACES BEING COOLED TO THE POINT WHERE CONDENSATION OF THE MOISTURE IN SAID GAS WOULD OTHERWISE HOLD AND ACCUMULATE SOLIDS ON SAID SURFACES.
Claim 2
Independent Claim
135 words
A METHOD OF REFRIGERATING SOLIDS IN A STREAM OF GAS CONTAINING MOISTURE, SAID METHOD COMPRISING CIRCULATING GASES IN A CLOSED CIRCUIT, DELIVERING THE SOLIDS TO BE COOLED INTO SAID CIRCUIT AT ONE POINT FOR ADVANCE THEREIN BY THE CIRCULATING GASES, SEPARATING THE SOLIDS FROM THE CIRCULATING GASES AND DISCHARGING THE SOLIDS FROM ANOTHER POINT IN THE CIRCUIT, AND PASSING BOTH THE GASES AND SOLIDS OVER REFRIGERATING HEAT EXCHANGE SURFACES AT A POINT INTERMEDIATE THE POINT OF ADMISSION AND THE POINT OF DISCHARGE OF THE SOLIDS AT SCOURING SPEEDS WHEREBY THE IMPACT OF SAID SOLIDS AGAINST SAID SURFACES SCOURS SAID SURFACE AND PREVENTS ACCUMULATION OF LIQUIDS OR SOLIDS THEREON, SAID REFRIGERATING HEAT EXCHANGE SURFACES BEING COOLED TO THE POINT WHERE CONDENSATION OF THE MOISTURE IN SAID GAS WOULD OTHERWISE HOLD AND ACCUMULATE SOLIDS ON SAID SURFACES.
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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) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |