US3156455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of effecting heat exchange and heat transfer devices therefor
Assignee: Holo Flite International Inc
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Filing: 1962-01-15
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Granted: 1964-11-10
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Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 Boulet Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:48
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/18; F26B17/20; B; B29; B29C; B29C48/00; B29C48/25; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/834; F28; F28D; F28D11/00; F28D11/02; B29C48/03
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
A METHOD OF TREATING A MATERIAL, COMPRISING CONVEYING THE MATERIAL ALONG A CHAMBER BY A HOLLOW HEAT EXCHANGE SCREW DEVICE, CIRCULATING HEAT EXCHANGE MEDIUM THROUGH SAID SCREW DEVICE, SUBJECTING THE MATERIAL TO A FLUIDIZING ACTION BY INJECTING A FLUID DIRECTLY INTO IT, WHEREBY THE PARTICLES ARE SIMULTANEOUSLY SUBJECTED IN THE CHAMBER BETWEEN THE HELICES OF SAID SCREW DEVICE ALONG THE CHAMBER TO HEAT EXCHANGE CONTACT WITH THE HEAT EXCHANGE SURFACES OF THE SCREW DEVICE, AGITATED BY SAID DEVICE AND CONVEYED BY SAID DEVICE ALONG THE TREATMENT CHAMBER.
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |