US3563306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for air-conditioning systems
Assignee: Individual
•
Filing: 1969-09-15
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Granted: 1971-02-16
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Expires: 1989-09-15
Abstract
Abstract The present invention concerns the application of fluidic devices to air-conditioning systems. More specifically, the present invention encompasses the use of fluidic valves by means of which heating and cooling can be controlled without moving parts being involved. Through the use of such devices, throttling as a means for controlling flow is eliminated altogether and the control of multizone air-conditioning is rendered more feasible.
Inventors
- 👤 Gene W Osheroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:28
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/008; F24; F24F; F24F11/00; F24F11/70; F24F11/80; F24F11/81; F24F11/30; F24F11/72; F24F11/74; F24F3/00; F24F3/044; F24F2003/0446; F24F2110/00; F24F2110/10; F24F2221/00; F24F2221/54; F24F8/00; F24F8/10; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2065; Y10T137/212; Y10T137/2125
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
276 words
In a system that provides air-conditioning for a plurality of rooms, the system including means for producing a stream of air under pressure, a supply duct for channeling the air from said means to the vicinity of the rooms, and a return duct for channeling the stream of air back to said means, equipment mounted outside said rooms and between them and said supply and return ducts, said equipment comprising: a plurality of pure fluid amplifier arrangements, corresponding in number to the number of rooms, mounted between the supply duct and the rooms, one such arrangement being mounted between the supply duct and each room, each of said amplifier arrangements including at least an inlet channel coupled to the supply duct and into which a portion of the airstream flows, a pair of outlet channels, only one of said outlet channels being coupled to the room to deliver said airstream to the space therein, and a pair of control channels through which air pressures are selectively directed against said airstream to switch the stream from one of said outlet channels to the other; a plurality of mechanisms corresponding in number to the number of fluid amplifier arrangements and coupled to a source of air pressure, one mechanism coupled to the pair of control channels in each such fluid amplifier arrangement, each mechanism being operable in response to an appropriate signal applied thereto to cause air pressure to be applied to a selected one of its associated control channels; and thermostatic apparatus mounted in each of the rooms to apply an appropriate signal to the associated mechanism when the temperature in the room reaches a predetermined level.
Claim 2
Dependent Claim
276 words
In a system that provides air-conditioning for a plurality of rooms, the system including means for producing a stream of air under pressure, a supply duct for channeling the air from said means to the vicinity of the rooms, and a return duct for channeling the stream of air back to said means, equipment mounted outside said rooms and between them and said supply and return ducts, said equipment comprising: a plurality of pure fluid amplifier arrangements, corresponding in number to the number of rooms, mounted between the supply duct and the rooms, one such arrangement being mounted between the supply duct and each room, each of said amplifier arrangements including at least an inlet channel coupled to the supply duct and into which a portion of the airstream flows, a pair of outlet channels, only one of said outlet channels being coupled to the room to deliver said airstream to the space therein, and a pair of control channels through which air pressures are selectively directed against said airstream to switch the stream from one of said outlet channels to the other; a plurality of mechanisms corresponding in number to the number of fluid amplifier arrangements and coupled to a source of air pressure, one mechanism coupled to the pair of control channels in each such fluid amplifier arrangement, each mechanism being operable in response to an appropriate signal applied thereto to cause air pressure to be applied to a selected one of its associated control channels; and thermostatic apparatus mounted in each of the rooms to apply an appropriate signal to the associated mechanism when the temperature in the room reaches a predetermined level.
Claim 3
Dependent Claim
46 words
The equipment defined in claim 1 wherein the other of said outlet channel in each of said fluid amplifier arrangements leads directly to the return duct to bypass the rooms, the stream of air flowing through any of said other outlet channels bypassing the associated room.
Claim 4
Dependent Claim
52 words
The equipment defined in claim 1 wherein in each fluid amplifier arRangement both outlet channels of said pair of outlet channels are coupled to the room, and wherein the equipment further includes heating and cooling elements respectively coupled to said pair of outlet channels for selectively heating and cooling air passing therethrough.
Claim 5
Dependent Claim
41 words
The equipment defined in claim 2 wherein each of said fluid amplifier arrangements is of the monostable type and biased in its construction so that the airstream flowing therethrough normally exits through the outlet channel leading directly to the return duct.
Claim 6
Dependent Claim
36 words
The equipment defined in claim 2 wherein each of said fluid amplifier arrangements is of the bistable type, the outlet channel thereof through which the airstream flows being selected under the control of the thermostatic apparatus.
Claim 7
Dependent Claim
52 words
The equipment defined in claim 2 wherein said equipment further includes a plurality of pressure-equalizing elements, corresponding in number to the number of fluid amplifier arrangements, that are mounted in the supply duct, the outlet channels of said fluid amplifier arrangements that bypass their rooms respectively being connected to said pressure-equalizing elements.
Claim 8
Dependent Claim
68 words
The equipment defined in claim 4 wherein each of said mechanisms is a solenoid mounted over one of the control channels in its associated amplifier arrangement and operable in response to an appropriate signal applied thereto to close said one control channel, the flow of the airstream in said amplifier arrangement being switched from the outlet channel bypassing the associated room to the outlet channel coupled to it.
Claim 9
Dependent Claim
96 words
The equipment defined in claim 5 wherein each of said mechanisms is a three-way valve device including a drive element, one of said valves being coupled to receive air pressure and the remaining two valves respectively being coupled to the pair of control channels in the associated bistable fluid amplifier arrangement, said two valves selectively closing one control channel to said air pressure and simultaneously opening the other channel to said air pressure in response to an appropriate signal applied to said drive element, thereby to switch the airstream from one outlet channel to the other.
Claim 10
Dependent Claim
35 words
The equipment defined in claim 6 wherein said pressure-equalizing elements are Venturi tubes, the connections between said Venturi tubes and the outlet channels bypassing their rooms respectively being at the narrow necks of said tubes.
Claim 11
Dependent Claim
170 words
An air-conditioning system for a plurality of rooms, said system comprising: means for producing a stream of conditioned air under pressure; a supply duct for channeling the airstream from said means to the vicinity of said rooms; a return duct external to said rooms for channeling the stream of air back to said means; equipment external to said rooms and coupled thereto as well as said supply and return ducts, said equipment normally channeling the airstream from the supply duct directly to the return duct and operable in response to a signal received from a room to diver a portion of said airstream from said supply duct to said room, said equipment including a plurality of pure fluid amplifier devices for channeling said airstream to said return duct and for diverting portions thereof to selected rooms in response to signals therefrom; and a plurality of thermostatic control devices respectively mounted in said plurality of rooms for producing said signals therefrom when the temperatures in the rooms respectively reach predetermined levels.
Claim 12
Dependent Claim
170 words
An air-conditioning system for a plurality of rooms, said system comprising: means for producing a stream of conditioned air under pressure; a supply duct for channeling the airstream from said means to the vicinity of said rooms; a return duct external to said rooms for channeling the stream of air back to said means; equipment external to said rooms and coupled thereto as well as said supply and return ducts, said equipment normally channeling the airstream from the supply duct directly to the return duct and operable in response to a signal received from a room to diver a portion of said airstream from said supply duct to said room, said equipment including a plurality of pure fluid amplifier devices for channeling said airstream to said return duct and for diverting portions thereof to selected rooms in response to signals therefrom; and a plurality of thermostatic control devices respectively mounted in said plurality of rooms for producing said signals therefrom when the temperatures in the rooms respectively reach predetermined levels.
Claim 13
Dependent Claim
156 words
The system defined in claim 10 wherein said pure fluid amplifier devices are of the monostable type with each including an inlet channel connected to the supply duct, a pair of outlet channels respectively connected to a room and the return duct, and a pair of control channels coupled to opposite sides of the airstream flowing in said amplifier device, said monostable amplifier devices being biased in their construction to normally direct the flow of the airstreams therein to the outlet channels connected to the return duct; and whErein each of said pure fluid amplifier devices further includes a mechanism that is activated in response to signals applied thereto to selectively open and close one of said control channels, said one control channel being such that during activation of said mechanism the airstream flowing in said device is switched from the outlet channel leading to the return duct to the outlet channel leading to the room.
Claim 14
Dependent Claim
105 words
The system defined in claim 10 wherein said pure fluid amplifier devices are of the bistable type with each including an inlet channel connected to the supply duct, a pair of outlet channels respectively connected to a room and the return duct, and a pair of control channels coupled to opposite sides of the airstream flowing in said amplifier device; and wherein each of said pure fluid amplifier devices further includes a mechanism coupled to said pair of control channels for alternately switching the airstream flowing in said device from one of its outlet channels to the other in response to signals successively applied thereto.
References Cited (Backward Citations)
US3275014A
Cited
US3426782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |