Patent US3242974A successfully refreshed from Google Patents.
US3242974A
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Method of heat exchange by means of a surface between fluids on the one hand and granular or powdered materials on the other hand
Assignee: "lambert Freres & Cie"
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Filing: 1962-02-12
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Granted: 1966-03-29
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Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Goulounes Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:24
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/40; A; A23; A23B; A23B2/00; A23B2/40; A23B2/405; A23B2/80; A23B2/805; B01J8/16; F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/16; F28D; F28D13/00; F28D7/00; F28D7/08; F28D7/082; F28D7/085; F28D7/087; F28F; F28F13/00; F28F13/06; F28F13/10; F28D21/00; F28D2021/0019; F28D2021/0045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD OF HEAT EXCHANGE BETWEEN A GRANULAR OR POWDERED MATERIAL AND A FLUID CONSISTING IN CONFINING THE MATERIAL TO BE TREATED IN A NORMALLY COMPACT STATE IN A GIVEN AREA, SEPARATING SAID MATERIAL FROM A FLUID BY A FIXED HEAT EXCHANGE SURFACE, INTERMITTENTLY INJECTING A FLUIDIZING GAS INTO SAID MATERIAL IN PULSES OF SAID GAS FOR INTERMITTENTLY FLUIDIZING SAID MATERIAL ONLY DURING EACH INJECTION PULSE OF SAID GAS AND TIMING SAID GAS INJECTION TO ALLOW SAID MATERIAL TO RETURN TO A COMPACT STATE BETWEEN SAID INJECTIONS OF SAID GAS.
Claim 2
Independent Claim
90 words
A METHOD OF HEAT EXCHANGE BETWEEN A GRANULAR OR POWDERED MATERIAL AND A FLUID CONSISTING IN CONFINING THE MATERIAL TO BE TREATED IN A NORMALLY COMPACT STATE IN A GIVEN AREA, SEPARATING SAID MATERIAL FROM A FLUID BY A FIXED HEAT EXCHANGE SURFACE, INTERMITTENTLY INJECTING A FLUIDIZING GAS INTO SAID MATERIAL IN PULSES OF SAID GAS FOR INTERMITTENTLY FLUIDIZING SAID MATERIAL ONLY DURING EACH INJECTION PULSE OF SAID GAS AND TIMING SAID GAS INJECTION TO ALLOW SAID MATERIAL TO RETURN TO A COMPACT STATE BETWEEN SAID INJECTIONS OF SAID GAS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |