US3640265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier control system
Assignee: Individual
•
Filing: 1970-05-04
•
Granted: 1972-02-08
•
Expires: 1990-05-04
Abstract
Abstract Humidifier for hot air heating systems having a waterevaporating pan with an overflow, means to supply water to said pan, at a rate exceeding the rate of evaporation, a removable partially submerged fin, a float chamber receiving the overflow and having an adjustable bleed, and a float actuated switch to control the water supply.
Inventors
- 👤 Richard H Swart Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:24
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; Y; Y10; Y10S; Y10S261/00; Y10S261/46
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
102 words
In a humidifier for hot air heating systems and the like, a water-evaporating pan having an overflow adapted to maintain a fixed level of water in the pan, means to supply water to said pan at a rate exceeding the rate of evaporation ro provide continuous flow through said overflow from said pan, and means responsive to a rate of overflow in excess of a predetermined overflow rate for temporarily discontinuing the supply of water by said water supply means to said pan at the supply rate exceeding the rate of evaporation, whereby to reduce the overflow rate to the predetermined rate.
Claim 2
Dependent Claim
102 words
In a humidifier for hot air heating systems and the like, a water-evaporating pan having an overflow adapted to maintain a fixed level of water in the pan, means to supply water to said pan at a rate exceeding the rate of evaporation ro provide continuous flow through said overflow from said pan, and means responsive to a rate of overflow in excess of a predetermined overflow rate for temporarily discontinuing the supply of water by said water supply means to said pan at the supply rate exceeding the rate of evaporation, whereby to reduce the overflow rate to the predetermined rate.
Claim 3
Dependent Claim
19 words
In a humidifier as set forth in claim 1 wherein the rate responsive means comprises a float responsive switch.
Claim 4
Dependent Claim
65 words
In a humidifier as set forth in claim 2 wherein the means to supply the water comprises a settable bleed valve, and a solenoid flow valve, and in which the solenoid is in circuit with the float responsive switch whereby a rise in the overflow rate opens the switch and the circuit to said solenoid, whereby to cut off the flow through the flow valve.
Claim 5
Dependent Claim
47 words
In a humidifier as set forth in claim 1, wherein the pan is provided with fins, a portion of which are submerged below the level of the overflow, and the remainder of which are exposed to the stream of hot air of the hot air heating system.
Claim 6
Dependent Claim
42 words
In a humidifier as set forth in claim 3, a thermostatic switch connected in series with a solenoid-actuated fuel supply valve, and having the flow valve solenoid and the float switch contacts connected in series, and parallel with the fuel valve solenoid.
Claim 7
Dependent Claim
48 words
In a humidifier as set forth in claim 3, wherein the pan is provided with removable fins, a portion of which are submerged below the level of the overflow, and the remainder of which are exposed to the stream Of hot air of the hot air heating system.
Claim 8
Dependent Claim
39 words
In a humidifier as set forth in claim 2, wherein the float responsive switch comprises a float chamber having an overflow connection to one side of the chamber, and a constant flow bleed in the bottom of the chamber.
Claim 9
Dependent Claim
33 words
In a humidifier as set forth in claim 7, wherein the constant flow bleed comprises an adjustably compressed annulus of fiber glass disposed above a bleed aperture in the bottom of the chamber.
Claim 10
Dependent Claim
34 words
In a humidifier as set forth in claim 7, wherein the constant flow bleed comprises an adjustably compressed annulus of compressible pervious material disposed above a bleed aperture in the bottom of the chamber.
Claim 11
Dependent Claim
16 words
In a humidifier as set forth in claim 7 wherein the constant flow bleed is adjustable.
Claim 12
Dependent Claim
19 words
In a humidifier as set forth in claim 7 wherein means are provided for regulating the rate of bleed.
References Cited (Backward Citations)
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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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |