Patent US3310098A successfully refreshed from Google Patents.
US3310098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic infra-red heater
Assignee: Universal Oil Products Co
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Filing: 1966-08-12
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Granted: 1967-03-21
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Expires: 1986-08-12
Abstract
No abstract record available.
Inventors
- 👤 Leslie C Hardison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:07
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A CATALYTIC INFRA-RED HEATER UNIT FOR SUPPLYING HIGH TEMPERATURE RADIANT HEAT WHICH COMPRISES IN COMBINATION, A HOUSING SECTION HAVING AN INLET PORT FOR A FUEL-AIR STREAM THERETO AND AN UNENCLOSED FACE FOR HEAT RADIATION AND FLUE GAS FLOW THEREFROM, AT LEAST ONE CORRUGATED-FORM NON-CATALYTIC METAL ALLOY SCREEN MEMBER ACROSS SAID HOUSING AND SAID UNENCLOSED FACE THEREOF, AT LEAST ONE CORRUGATED-FORM ALL-METAL ALLOY SCREEN MEMBER COATED WITH AN ALL-METAL OXIDIZING CATALYST AND POSITIONED EXTERNALLY OVER AND DIRECTLY ADJACENT TO SAID NON-CATALYTIC SCREEN, THE CORRUGATIONS OF SAID NON-CATALYTIC SCCREEN EXTENDING INTO MATCHING CORRUGATIONS OF SAID COATED SCREEN, WHEREBY THE FUEL-AIR STREAM PASSING OUTWARDLY FROM THE INTERIOR OF SAID HOUSING AND THROUGH SAID SCREEN MEMBERS WILL BE PREHEATED BY SAID NON-CATALYTIC SCREEN AND CATALYTICALLY OXIDIZED AS IT LEAVES THE SURFACE OF THE COATED SCREEN AND PROVIDE FLAMELESS INFRA-RED HEAT EMISSION THEREFROM.
Claim 2
Dependent Claim
138 words
A CATALYTIC INFRA-RED HEATER UNIT FOR SUPPLYING HIGH TEMPERATURE RADIANT HEAT WHICH COMPRISES IN COMBINATION, A HOUSING SECTION HAVING AN INLET PORT FOR A FUEL-AIR STREAM THERETO AND AN UNENCLOSED FACE FOR HEAT RADIATION AND FLUE GAS FLOW THEREFROM, AT LEAST ONE CORRUGATED-FORM NON-CATALYTIC METAL ALLOY SCREEN MEMBER ACROSS SAID HOUSING AND SAID UNENCLOSED FACE THEREOF, AT LEAST ONE CORRUGATED-FORM ALL-METAL ALLOY SCREEN MEMBER COATED WITH AN ALL-METAL OXIDIZING CATALYST AND POSITIONED EXTERNALLY OVER AND DIRECTLY ADJACENT TO SAID NON-CATALYTIC SCREEN, THE CORRUGATIONS OF SAID NON-CATALYTIC SCCREEN EXTENDING INTO MATCHING CORRUGATIONS OF SAID COATED SCREEN, WHEREBY THE FUEL-AIR STREAM PASSING OUTWARDLY FROM THE INTERIOR OF SAID HOUSING AND THROUGH SAID SCREEN MEMBERS WILL BE PREHEATED BY SAID NON-CATALYTIC SCREEN AND CATALYTICALLY OXIDIZED AS IT LEAVES THE SURFACE OF THE COATED SCREEN AND PROVIDE FLAMELESS INFRA-RED HEAT EMISSION THEREFROM.
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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |