US3193263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic radiant heat treating apparatus
Assignee: Universal Oil Products Co
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Filing: 1961-09-19
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Granted: 1965-07-06
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Expires: 1981-09-19
Abstract
No abstract record available.
Inventors
- 👤 Richard J Ruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:09
CPC Classifications
F; F23; F23D; F23D99/00; F23D99/002; F23D99/004; F23D2206/00; F23D2206/0057; F23D2206/0063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A CATALYTIC RADIANT HEAT TREATING APPARATUS COMPRISING AN ELONGATED HORIZONTAL CHAMBER, MEANS IN SAID CHAMBER FOR SUPPORTING ARTICLES TO BE HEAT TREATED, A SUBSTANTIALLY HORIZONTAL FLAMELESS AND CATALYTIC RADIANT HEATING UNIT SPACED ABOVE AND DISPOSED IN HEAT RADIATING RELATION, TO SAID SUPPORTING MEANS, SAID UNIT INCLUDING A LOWER WALL FORMED BY AN AIR PERVIOUS, CATALYTIC ELEMENT PROVIDING A SOURCE OF RADIANT HEAT AND A LAYER OF AIR DIFFUSING MATERIAL COVERING THE UPPER SURFACE OF SAID CATALYTIC ELEMENT, A CLOSED COMPARTMENT ABOVE SAID UNIT AND COMMUNICATING WITH SAID CATALYTIC ELEMENT THROUGH SAID LAYER, A CONDUIT COMMUNICATING WITH SAID COMPARTMENT, MEANS FOR SUPPLYING AIR UNDER PRESSURE TO SAID CONDUIT, MEANS FOR PREHEATING THE CATALYTIC ELEMENT TO IGNITION TEMPERATURE, AND A FUEL SUPPLY CONNECTED TO SAID CONDUIT, WHEREBY ARTICLES ON SAID SUPPORTING MEANS WILL BE HEAT TREATED BY RADIANT HEAT EMANATING FROM SAID FLAMELSS CATALYTIC ELEMENT.
Claim 2
Dependent Claim
143 words
A CATALYTIC RADIANT HEAT TREATING APPARATUS COMPRISING AN ELONGATED HORIZONTAL CHAMBER, MEANS IN SAID CHAMBER FOR SUPPORTING ARTICLES TO BE HEAT TREATED, A SUBSTANTIALLY HORIZONTAL FLAMELESS AND CATALYTIC RADIANT HEATING UNIT SPACED ABOVE AND DISPOSED IN HEAT RADIATING RELATION, TO SAID SUPPORTING MEANS, SAID UNIT INCLUDING A LOWER WALL FORMED BY AN AIR PERVIOUS, CATALYTIC ELEMENT PROVIDING A SOURCE OF RADIANT HEAT AND A LAYER OF AIR DIFFUSING MATERIAL COVERING THE UPPER SURFACE OF SAID CATALYTIC ELEMENT, A CLOSED COMPARTMENT ABOVE SAID UNIT AND COMMUNICATING WITH SAID CATALYTIC ELEMENT THROUGH SAID LAYER, A CONDUIT COMMUNICATING WITH SAID COMPARTMENT, MEANS FOR SUPPLYING AIR UNDER PRESSURE TO SAID CONDUIT, MEANS FOR PREHEATING THE CATALYTIC ELEMENT TO IGNITION TEMPERATURE, AND A FUEL SUPPLY CONNECTED TO SAID CONDUIT, WHEREBY ARTICLES ON SAID SUPPORTING MEANS WILL BE HEAT TREATED BY RADIANT HEAT EMANATING FROM SAID FLAMELSS CATALYTIC ELEMENT.
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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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |