Patent US3353529A successfully refreshed from Google Patents.
US3353529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stationary hot air building heating system using a gas turbine driven fan
Assignee: Individual
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Filing: 1966-06-10
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Granted: 1967-11-21
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Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 Kovats Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:47
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/10; F24D19/1084; F24H; F24H15/00; F24H15/10; F24H15/144; F24H15/20; F24H15/204; F24H15/242; F24H15/254; F24H15/30; F24H15/305; F24H15/31; F24H15/345; F24H15/35; F24H3/00; F24H3/02; F24H3/06; F24H3/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A HOT AIR HEATING SYSTEM FOR CONTINUOUS OPERATION DURING A HEATING PERIOD COMPRISING A FIRST AIR DOCT FOR DISTRIBUTION OF PRIMARY HEATING AIR; HEAT EXCHANGE MEANS IN SERIES FLOW WITH THE AIR DUCT HAVING A PRIMARY SIDE FOR FLOW OF THE HEATING AIR, A SECONDARY SIDE IN HEAT EXCHANGE RELATIONSHIP WITH THE PRIMARY SIDE; A FAN IN THE FIRST AIR DUCT FOR FORCED CIRCULATION OF THE HEATING AIR; A GAS TURBINE-COMPRESSOR DRIVE MEANS CONNECTED TO THE FAN; MEANS TO SUPPLY SECONDARY AIR TO THE TURBINE-COMPRESSOR DRIVE MEANS; COMBUSTION CHAMBER MEANS INTERMEDIATE THE TURBINE AND COMPRESSOR TO PROVIDE AN ENTHALPY INPUT TO THE SECONDARY AIR; FUEL VALVE MEANS TO VARY THE FUEL INPUT TO THE COMBUSTION CHAMBER; SECOND DUCT MEANS BETWEEN THE TURBINE OUTLET AND HEAT EXCHANGE MEANS SECONDARY SIDE TO TRANSMIT THE FLOW OF TURBINE EXHAUST AIR TO THE HEAT EXCHANGE MEANS SECONDARY SIDE;
Claim 2
Dependent Claim
144 words
A HOT AIR HEATING SYSTEM FOR CONTINUOUS OPERATION DURING A HEATING PERIOD COMPRISING A FIRST AIR DOCT FOR DISTRIBUTION OF PRIMARY HEATING AIR; HEAT EXCHANGE MEANS IN SERIES FLOW WITH THE AIR DUCT HAVING A PRIMARY SIDE FOR FLOW OF THE HEATING AIR, A SECONDARY SIDE IN HEAT EXCHANGE RELATIONSHIP WITH THE PRIMARY SIDE; A FAN IN THE FIRST AIR DUCT FOR FORCED CIRCULATION OF THE HEATING AIR; A GAS TURBINE-COMPRESSOR DRIVE MEANS CONNECTED TO THE FAN; MEANS TO SUPPLY SECONDARY AIR TO THE TURBINE-COMPRESSOR DRIVE MEANS; COMBUSTION CHAMBER MEANS INTERMEDIATE THE TURBINE AND COMPRESSOR TO PROVIDE AN ENTHALPY INPUT TO THE SECONDARY AIR; FUEL VALVE MEANS TO VARY THE FUEL INPUT TO THE COMBUSTION CHAMBER; SECOND DUCT MEANS BETWEEN THE TURBINE OUTLET AND HEAT EXCHANGE MEANS SECONDARY SIDE TO TRANSMIT THE FLOW OF TURBINE EXHAUST AIR TO THE HEAT EXCHANGE MEANS SECONDARY SIDE;
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |