US3367385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractible air register
Assignee: Peabody Engineering Corp
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Filing: 1966-11-29
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Granted: 1968-02-06
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Expires: 1986-11-29
Abstract
No abstract record available.
Inventors
- 👤 Dunn John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:36
CPC Classifications
F; F23; F23C; F23C7/00; F23C7/002; F23C7/004; F23C7/008; F23D; F23D2204/00; F23D2204/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
IN COMBINATION WITH A FUEL BURNER HAVING A BURNER TUBE DISPOSED TO SUPPLY AIR FOR COMBUSTION TO A BURNER THROAT, A PLENUM CHAMBER CARRYING AIR FOR COMBUSTION, AN OUTER AIR REGISTER IN SAID PLENUM CHAMBER HAVING A BACK PLATE AND A PLURALITY OF AIR VANES SPACED AROUND THE PERIPHERY OF SAID BURNER TUBE WITH THEIR INNER PERIHERIES LYING IN A CIRCLE HAVING A DIAMETER AT LEAST AS LARGE AT THAT OF SAID BURNER TUBE, SAID VANES BEING DISPOSED AXIALLY FORWARD OF THE ENTRANCE END OF SAID TUBE, AND AN INNER AIR REGISTER HAVING A SET OF PERIPHERALLY SPACED AIR VANES HAVING THEIR OUTER EDGES LYING IN A CIRCLE NO LARGER THAN THE INSIDE DIAMETER OF SAID TUBE, A TRANSVERSE MOUNTING PLATE CARRYING SAID LAST VANES AND DISPOSED AXIALLY FORWARD THEREOF AND MEANS MOUNTING SAID MOUNTING PLATE FOR AVIAL MOVEMENT WITH RESPECT TO SAID OUTER AIR REGISTER AND SAID TUBE BETWEEN A REARWARD POSITION, WITH SAID LAST VANES DISPOSED WITHIN SAID TUBE AND AXIALLY REARWARD OF THE ZONE OF SAID OUTER AIR REGISTER, AND AN ADVANCED POSITION, AXIALLY FORWARD OF THE ZONE OF SAID OUTER AIR REGISTER AND OUT OF THE PATH OF THE AIR FLOW THERETHROUGH INTO SAID TUBE.
Claim 2
Dependent Claim
199 words
IN COMBINATION WITH A FUEL BURNER HAVING A BURNER TUBE DISPOSED TO SUPPLY AIR FOR COMBUSTION TO A BURNER THROAT, A PLENUM CHAMBER CARRYING AIR FOR COMBUSTION, AN OUTER AIR REGISTER IN SAID PLENUM CHAMBER HAVING A BACK PLATE AND A PLURALITY OF AIR VANES SPACED AROUND THE PERIPHERY OF SAID BURNER TUBE WITH THEIR INNER PERIHERIES LYING IN A CIRCLE HAVING A DIAMETER AT LEAST AS LARGE AT THAT OF SAID BURNER TUBE, SAID VANES BEING DISPOSED AXIALLY FORWARD OF THE ENTRANCE END OF SAID TUBE, AND AN INNER AIR REGISTER HAVING A SET OF PERIPHERALLY SPACED AIR VANES HAVING THEIR OUTER EDGES LYING IN A CIRCLE NO LARGER THAN THE INSIDE DIAMETER OF SAID TUBE, A TRANSVERSE MOUNTING PLATE CARRYING SAID LAST VANES AND DISPOSED AXIALLY FORWARD THEREOF AND MEANS MOUNTING SAID MOUNTING PLATE FOR AVIAL MOVEMENT WITH RESPECT TO SAID OUTER AIR REGISTER AND SAID TUBE BETWEEN A REARWARD POSITION, WITH SAID LAST VANES DISPOSED WITHIN SAID TUBE AND AXIALLY REARWARD OF THE ZONE OF SAID OUTER AIR REGISTER, AND AN ADVANCED POSITION, AXIALLY FORWARD OF THE ZONE OF SAID OUTER AIR REGISTER AND OUT OF THE PATH OF THE AIR FLOW THERETHROUGH INTO SAID TUBE.
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) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |