Patent US3157476A successfully refreshed from Google Patents.
US3157476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant energy heat treating improvements
Assignee: Hupp Corp
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Filing: 1961-11-13
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Granted: 1964-11-17
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Horace L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:31
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/90; A23B2/97; Y; Y10; Y10S; Y10S159/00; Y10S159/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
RADIANT ENERGY HEAT TREATING APPARATUS COMPRISING A THIN ENDLESS METALLIC HEAT CONDUCTIVE FLEXIBLE CORROSION RESISTANT CARRIER BELT HAVING A HIGHLY POLISHED RADIATION REFLECTIVE LOW EMISSIVITY OUTER MATERIAL-CARRYING SURFACE AND AN INNER HEAT CONDUCTIVE, HIGHLY RADIATION ABSORPTIVE AND EMISSIVE SURFACE COMPRISED OF A GLASS FRIT ENAMEL COATING AND MATERIAL-BEARING AND RETURN LEGS; TEMPERATURE MODIFYING MEANS DISPOSED ON OPPOSITE SIDES OF AT LEAST ONE OF SAID LEGS ADJACENT EACH OF SAID BELT SURFACES; MEANS FOR DRIVING SAID BELT BETWEEN SAID TEMPERATURE MODIFYING MEANS; MEANS FOR FEEDING A RELATIVELY THIN LAYER OF MATERIAL TO BE TREATED TO SAID BELT ADJACENT ONE END OF SAID MATERIAL-BEARING LEG; MEANS FOR REMOVING THE TREATED MATERIAL; AND MEANS FOR REMOVING THE VAPORS AND GASES EVOLVED FROM SAID MATERIAL IN ITS PASSAGE BETWEEN SAID TEMPERATURE MODIFYING MEANS WHREBY SUBSTANBTIAL INCREASED EFFICIENTY OF RADIANT ENERGY UTILIZATION IS ATTAINED.
Claim 2
Dependent Claim
139 words
RADIANT ENERGY HEAT TREATING APPARATUS COMPRISING A THIN ENDLESS METALLIC HEAT CONDUCTIVE FLEXIBLE CORROSION RESISTANT CARRIER BELT HAVING A HIGHLY POLISHED RADIATION REFLECTIVE LOW EMISSIVITY OUTER MATERIAL-CARRYING SURFACE AND AN INNER HEAT CONDUCTIVE, HIGHLY RADIATION ABSORPTIVE AND EMISSIVE SURFACE COMPRISED OF A GLASS FRIT ENAMEL COATING AND MATERIAL-BEARING AND RETURN LEGS; TEMPERATURE MODIFYING MEANS DISPOSED ON OPPOSITE SIDES OF AT LEAST ONE OF SAID LEGS ADJACENT EACH OF SAID BELT SURFACES; MEANS FOR DRIVING SAID BELT BETWEEN SAID TEMPERATURE MODIFYING MEANS; MEANS FOR FEEDING A RELATIVELY THIN LAYER OF MATERIAL TO BE TREATED TO SAID BELT ADJACENT ONE END OF SAID MATERIAL-BEARING LEG; MEANS FOR REMOVING THE TREATED MATERIAL; AND MEANS FOR REMOVING THE VAPORS AND GASES EVOLVED FROM SAID MATERIAL IN ITS PASSAGE BETWEEN SAID TEMPERATURE MODIFYING MEANS WHREBY SUBSTANBTIAL INCREASED EFFICIENTY OF RADIANT ENERGY UTILIZATION IS ATTAINED.
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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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |