US3334877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier unit for air ducts of warm air furnaces
Assignee: Individual
•
Filing: 1965-01-28
•
Granted: 1967-08-08
•
Expires: 1985-01-28
Abstract
No abstract record available.
Inventors
- 👤 Francis M Payne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:42
CPC Classifications
F; F24; F24D; F24D5/00; Y; Y10; Y10S; Y10S261/00; Y10S261/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A HUMIDIFIER FOR USE WITH A WARM AIR HEATING SYSTEM HAVING AN AIR DUCT, WHICH HUMIDIFIER COMPRISES: A DRAINAGE PAN HAVING A DRAIN OPENING AND BEING MOUNTED IN THE BOTTOM OF THE AIR DUCT; A FRAME MOUNTED ABOVE THE DRAINAGE PAN AND EXTENDING INTO THE AIR DUCT; WASHABLE AIR FILTERING MATERIAL COVERING THE FRAME AND FORMING AN ENCLOSURE WITH THE DRAINAGE PAN; AT LEAST ONE WATER SPRAY NOZZLE LOCATED WITHIN THE ENCLOSURE AND POSITIONED TO SPRAY A MIST OF WATER TOWARD THE UPSTREAM END OF THE ENCLOSURE AND INTO THE FLOW OF AIR PASSING THROUGH THE ENCLOSURE; A WATER SUPPLY PIPE CONNECTED TO THE NOZZLE; AND CONTROL MEANS FOR AUTOMATICALLY CONTROLLING THE FLOW OF WATER TO THE SUPPLY PIPE.
Claim 2
Dependent Claim
119 words
A HUMIDIFIER FOR USE WITH A WARM AIR HEATING SYSTEM HAVING AN AIR DUCT, WHICH HUMIDIFIER COMPRISES: A DRAINAGE PAN HAVING A DRAIN OPENING AND BEING MOUNTED IN THE BOTTOM OF THE AIR DUCT; A FRAME MOUNTED ABOVE THE DRAINAGE PAN AND EXTENDING INTO THE AIR DUCT; WASHABLE AIR FILTERING MATERIAL COVERING THE FRAME AND FORMING AN ENCLOSURE WITH THE DRAINAGE PAN; AT LEAST ONE WATER SPRAY NOZZLE LOCATED WITHIN THE ENCLOSURE AND POSITIONED TO SPRAY A MIST OF WATER TOWARD THE UPSTREAM END OF THE ENCLOSURE AND INTO THE FLOW OF AIR PASSING THROUGH THE ENCLOSURE; A WATER SUPPLY PIPE CONNECTED TO THE NOZZLE; AND CONTROL MEANS FOR AUTOMATICALLY CONTROLLING THE FLOW OF WATER TO THE SUPPLY PIPE.
References Cited (Backward Citations)
CA679647A
Cited
US2495538A
Cited
US2633929A
Cited
US2681217A
Cited
US3021831A
Cited
US3119887A
Cited
US3102531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |