US3744773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A furnace plenum or duct type humidifier
Assignee: Borg Warner Corp
•
Filing: 1971-02-10
•
Granted: 1973-07-10
•
Expires: 1991-02-10
Abstract
Abstract This disclosure comprises a humidifier mounted in a vertical position in the furnace plenum, and a modified form thereof is mounted in a horizontal position in the furnace duct, each of which has a centrifugal water impeller that throws droplets of water into a mesh or mat where it evaporates and enters into the air stream. The centrifugal water impeller units are rotated by means of a vane propeller or fan by the flow of air. This invention, therefore, eliminates the need for an electric motor or other electrical means.
Inventors
- 👤 H Velander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:55
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/06; Y; Y10; Y10S; Y10S261/00; Y10S261/15
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
A humidifier adapted to supported mounted in a horizontal position in a duct of a furnace system comprising: a generally cylindrical, foraminous screen defining a housing; a turbine unit mounted in a horizontal position within the inner periphery of said housing, driven by the air flow in said furnace duct; a centrifugal water impeller operably connected to said turbine unit; a support means fastened to said housing; a shaft rotatably disposed in said support means and connected to said turbine unit and said centrifugal water impeller; a water reservoir; a water tube connected to said water reservoir for supplying water to said centrifugal water impeller; multiple water throwing units connected to said centrifugal water impeller; an absorbent pad encompassing the said housing for receiving water spray; and a drain at the bottom of said housing.
Claim 2
Dependent Claim
135 words
A humidifier adapted to supported mounted in a horizontal position in a duct of a furnace system comprising: a generally cylindrical, foraminous screen defining a housing; a turbine unit mounted in a horizontal position within the inner periphery of said housing, driven by the air flow in said furnace duct; a centrifugal water impeller operably connected to said turbine unit; a support means fastened to said housing; a shaft rotatably disposed in said support means and connected to said turbine unit and said centrifugal water impeller; a water reservoir; a water tube connected to said water reservoir for supplying water to said centrifugal water impeller; multiple water throwing units connected to said centrifugal water impeller; an absorbent pad encompassing the said housing for receiving water spray; and a drain at the bottom of said housing.
Claim 3
Dependent Claim
27 words
A humidifier as in claim 1 wherein the said shaft is provided with a bore communicable with the said water tube and the said centrifugal water impeller.
Claim 4
Dependent Claim
30 words
A humidifier as in claim 2 wherein the said support means is provided with a pair of bushings one each at opposite ends thereof in engagement with the said shaft.
References Cited (Backward Citations)
US522217A
Cited
US939351A
Cited
US1100144A
Cited
US1691827A
Cited
US1792909A
Cited
US2018493A
Cited
US2076192A
Cited
US2129215A
Cited
US3139462A
Cited
US3421745A
Cited
US3450124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |