US3149626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier
Assignee: Lau Blower Co
•
Filing: 1963-05-20
•
Granted: 1964-09-22
•
Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 William H Wentling
- 👤 Clarence G Nenadal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:37
CPC Classifications
F; F24; F24D; F24D5/00; F24F; F24F6/00; F24F6/02; F24F6/06; Y; Y10; Y10S; Y10S261/00; Y10S261/15; Y10S261/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
A COMPACT HUMIDIFIER UNIT ADAPTED TO BE MOUNTED ON THE WALL OF A HOT AIR FURNACE OR THE LIKE FOR INCREASING THE MOISTURE CONTENT OF THE AIR BEING HEATED THEREBY, COMPRISING A MOUNTING PLATE ADAPTED TO BE REMOVABLY SECURED OVER AN APERTURE IN THE WALL OF THE FURNACE, A DRIVE ASSEMBLY MOUNTED ON ONE SIDE OF SAID PLATE AND HAVING A PAIR OF COAXIAL DRIVE SHAFTS EXTENDING THROUGH AN APERTURE IN SAID PLATE TO THE OPPOSITE SIDE THEREOF, ONE OF SAID DRIVE SHAFTS BEING DRIVEN AT A SPEED SUBSTANTIALLY SLOWER THAN THE OTHER OF SAID DRIVE SHAFTS, EVAPORATOR DRUM MEANS MOUNTED ON SAID ONE OF SAID DRIVE SHAFTS ON THE OPPOSITE SIDE OF SAID PLATE, SAID DRUM MEANS INCLUDING EVAPORATOR MATERIAL FOR ADDING MOISTURE TO THE AIR, SAID DRUM MEANS HAVING AN OPEN END, MEANS ON SAID OPPOSITE SIDE OF SAID PLATE FOR WETTING THE SURFACES OF SAID MATERIAL AS SAID DRUM MEANS IS ROTATED, SAID OTHER OF SAID DRIVE SHAFTS HAVING A PORTION EXTENDING AXIALLY BEYOND SAID ONE OF SAID DRIVE SHAFTS, AND AIR MOVING MEANS MOUNTED ON SAID PORTION OF SAID OTHER OPEN END AND FORCING IT OVER THE SURFACES OF SAID EVAPORATOR MATERIAL.
Claim 2
Dependent Claim
196 words
A COMPACT HUMIDIFIER UNIT ADAPTED TO BE MOUNTED ON THE WALL OF A HOT AIR FURNACE OR THE LIKE FOR INCREASING THE MOISTURE CONTENT OF THE AIR BEING HEATED THEREBY, COMPRISING A MOUNTING PLATE ADAPTED TO BE REMOVABLY SECURED OVER AN APERTURE IN THE WALL OF THE FURNACE, A DRIVE ASSEMBLY MOUNTED ON ONE SIDE OF SAID PLATE AND HAVING A PAIR OF COAXIAL DRIVE SHAFTS EXTENDING THROUGH AN APERTURE IN SAID PLATE TO THE OPPOSITE SIDE THEREOF, ONE OF SAID DRIVE SHAFTS BEING DRIVEN AT A SPEED SUBSTANTIALLY SLOWER THAN THE OTHER OF SAID DRIVE SHAFTS, EVAPORATOR DRUM MEANS MOUNTED ON SAID ONE OF SAID DRIVE SHAFTS ON THE OPPOSITE SIDE OF SAID PLATE, SAID DRUM MEANS INCLUDING EVAPORATOR MATERIAL FOR ADDING MOISTURE TO THE AIR, SAID DRUM MEANS HAVING AN OPEN END, MEANS ON SAID OPPOSITE SIDE OF SAID PLATE FOR WETTING THE SURFACES OF SAID MATERIAL AS SAID DRUM MEANS IS ROTATED, SAID OTHER OF SAID DRIVE SHAFTS HAVING A PORTION EXTENDING AXIALLY BEYOND SAID ONE OF SAID DRIVE SHAFTS, AND AIR MOVING MEANS MOUNTED ON SAID PORTION OF SAID OTHER OPEN END AND FORCING IT OVER THE SURFACES OF SAID EVAPORATOR MATERIAL.
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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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |