US3324924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant heating devices
Assignee: EIDP Inc
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Filing: 1965-03-22
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Granted: 1967-06-13
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Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 Hailstone Roger
- 👤 Sowards Donald Maurice
- 👤 Weidman Verne Wesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:15
CPC Classifications
F; F23; F23C; F23C99/00; F23C2700/00; F23C2700/04; F23C2700/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A RADIANT GAS BURNER COMPRISING: (A) AS A RADIANT ELEMENT, A CERAMIC, REFRACTORY OPENCELLED HONEYCOMB-SHAPED STRUCTURE; (B) AN INJECTOR PLATE COMPRISING A SHEET OF A CERAMIC, REFRACTORY MATERIAL SAID PLATE BEING ARRANGED IN SUCH A WAY THAT ONE SURFACE IS IN CONTACT WITH ONE END OF EACH CELL OF THE HONEYCOMB STRUCTURE, AND HAVING HOLES DISTRIBUTED EVENLY OVER THE PORTION OF ITS SURFACE WHICH IS IN CONTACT WITH THE HONEYCOMB STRUCTURE TO FORM A MULTIPLICITY OF COMBUSTION ZONES, THE NUMBER AND SIZE OF SAID HOLES BEING SUCH AS TO PROVIDE A GAS/AIR VELOCITY THERETHROUGH IN THE RANGE OF 5 TO 50 FEET PER SECOND FOR A GIVEN TOTAL GAS AND AIR MIXTURE THROUGHPUT; (C) A GAS DISTRIBUTION CHAMBER HAVING AT LEAST A PORTION OF ITS DEFINING WALL CONSISTING OF THE SURFACE OF SAID INJECTOR PLATE WHICH IS OPPOSITE TO THE SURFACE ATTACHED TO THE HONEYCOMB STRUCTURE AND BEING FITTED WITH MEANS FOR THE INTRODUCTION OF A MIXTURE OF SAID GAS AND AIR AT SAID GIVEN THROUGHPUT.
Claim 2
Dependent Claim
166 words
A RADIANT GAS BURNER COMPRISING: (A) AS A RADIANT ELEMENT, A CERAMIC, REFRACTORY OPENCELLED HONEYCOMB-SHAPED STRUCTURE; (B) AN INJECTOR PLATE COMPRISING A SHEET OF A CERAMIC, REFRACTORY MATERIAL SAID PLATE BEING ARRANGED IN SUCH A WAY THAT ONE SURFACE IS IN CONTACT WITH ONE END OF EACH CELL OF THE HONEYCOMB STRUCTURE, AND HAVING HOLES DISTRIBUTED EVENLY OVER THE PORTION OF ITS SURFACE WHICH IS IN CONTACT WITH THE HONEYCOMB STRUCTURE TO FORM A MULTIPLICITY OF COMBUSTION ZONES, THE NUMBER AND SIZE OF SAID HOLES BEING SUCH AS TO PROVIDE A GAS/AIR VELOCITY THERETHROUGH IN THE RANGE OF 5 TO 50 FEET PER SECOND FOR A GIVEN TOTAL GAS AND AIR MIXTURE THROUGHPUT; (C) A GAS DISTRIBUTION CHAMBER HAVING AT LEAST A PORTION OF ITS DEFINING WALL CONSISTING OF THE SURFACE OF SAID INJECTOR PLATE WHICH IS OPPOSITE TO THE SURFACE ATTACHED TO THE HONEYCOMB STRUCTURE AND BEING FITTED WITH MEANS FOR THE INTRODUCTION OF A MIXTURE OF SAID GAS AND AIR AT SAID GIVEN THROUGHPUT.
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |