Patent US2363465A successfully refreshed from Google Patents.
Patent US3801077A successfully refreshed from Google Patents.
US3801077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifying apparatus
Assignee: Individual
•
Filing: 1971-09-13
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Granted: 1974-04-02
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Expires: 1991-09-13
Abstract
Abstract Humidifying apparatus for injecting steam into a pressure duct of an air conditioning system wherein the purity of the air must be maintained comprising a closed steam chamber and a closed water tank coupled to allow flow of water from the tank to the chamber for steaming, a steam outlet from the chamber leading to the duct and a pressure balance opening from the water tank leading to the duct so that the duct pressure is experienced in the steam chamber and water tank so that the apparatus can operate over a wide range of positive and negative pressures but is sealed to prevent ingress of bacteria from the atmosphere surrounding the apparatus, and including a float controlled water feed and an overflow pipe for the water tank said overflow pipe having its upper end open to atmosphere and its lower end below the normal operational level of the tank again to prohibit ingress of bacteria into the apparatus.
Inventors
- 👤 G Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:33
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/18; Y; Y10; Y10S; Y10S261/00; Y10S261/15; Y10S261/76
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
273 words
An air-conditioning system comprising a duct carrying a flow of air of which the pressure may vary from above to below atmospheric and fresh steam injection apparatus located outside and adjacent to said duct for conditioning said flow of air, said humidifying apparatus comprising a. a sealed water tank mounted outside and adjacent said duct, said tank having a valved water inlet having a float control to maintain the water level in said tank at a predetermined level, b. a steam chamber means mounted outside and adjacent said duct, said steam chamber means communicating with said air duct through a baffled chamber means, said chamber further defining a lateral steam injection duct for injecting fresh steam into said air duct, c. means hydraulically connecting the water tank and the steam chamber to insure the steam chamber remains filled with water to a predetermined level, d. heating means mounted within said steam chamber below said predetermined water level, e. an overflow pipe having an upper overflow outlet end located above said predetermined level and below said steam injection duct, said overflow pipe having its lower end hydraulically connected to the water tank below said predetermined water level, f. means pneumatically connecting said water tank and said steam chamber above the water level of each with the interior of the air duct, said means including a pneumatic conduit interconnecting the interior of the air duct with the space in the sealed water tank above said predetermined water level, said pneumatic conduit and said steam injection duct providing an equal application of pressure variations in said air duct to said water tank and said steam chamber.
Claim 2
Dependent Claim
273 words
An air-conditioning system comprising a duct carrying a flow of air of which the pressure may vary from above to below atmospheric and fresh steam injection apparatus located outside and adjacent to said duct for conditioning said flow of air, said humidifying apparatus comprising a. a sealed water tank mounted outside and adjacent said duct, said tank having a valved water inlet having a float control to maintain the water level in said tank at a predetermined level, b. a steam chamber means mounted outside and adjacent said duct, said steam chamber means communicating with said air duct through a baffled chamber means, said chamber further defining a lateral steam injection duct for injecting fresh steam into said air duct, c. means hydraulically connecting the water tank and the steam chamber to insure the steam chamber remains filled with water to a predetermined level, d. heating means mounted within said steam chamber below said predetermined water level, e. an overflow pipe having an upper overflow outlet end located above said predetermined level and below said steam injection duct, said overflow pipe having its lower end hydraulically connected to the water tank below said predetermined water level, f. means pneumatically connecting said water tank and said steam chamber above the water level of each with the interior of the air duct, said means including a pneumatic conduit interconnecting the interior of the air duct with the space in the sealed water tank above said predetermined water level, said pneumatic conduit and said steam injection duct providing an equal application of pressure variations in said air duct to said water tank and said steam chamber.
Claim 3
Dependent Claim
55 words
An air conditioning system as claimed in claim 1 wherein said steam chambers further comprise first and second vertical chambers with said lateral steam injection duct mounted at the top thereof, said first and second chambers each having a plurality of curved baffles therein to prevent the ingress of said water in a liquid state.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |