US3623543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual conduit air-conditioning system
Assignee: Carrier Corp
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Filing: 1970-04-02
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Granted: 1971-11-30
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Expires: 1990-04-02
Abstract
Abstract An air-conditioning system including first and second central station apparatus for supplying conditioned primary and secondary air, respectively, to a plurality of enclosed areas in a building. A constant volume of secondary air is supplied to a preselected area. The temperature of the area is sensed and the first central station apparatus is operated to provide a constant volume of primary air to each of the enclosed areas at a temperature related to the temperature sensed in the preselected enclosed area. Secondary air is supplied to each of the other areas simultaneously with the supply of secondary air to the preselected area, the volume thereof being regulated to provide a desired temperature condition in each of the areas.
Inventors
- 👤 William S Ostrander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:00
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/044; F24F3/0442; F24F3/0444
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
142 words
A method of air conditioning a building containing a plurality of enclosed areas, having first and second central station conditioning apparatus for supplying respectively, conditioned primary and secondary air to each of the enclosed areas comprising the steps of: A. supplying a constant volume of secondary air to a preselected enclosed area; B. sensing the temperature of the air in the preselected enclosed area; C. generating a signal, the magnitude thereof being related to the temperature of the air in the enclosed area; D. supplying a constant volume of primary air to each of the enclosed areas, the temperature thereof being related to said signal; and E. supplying secondary air to each of the other enclosed areas simultaneously with the supply of secondary air to said preselected enclosed area, the volume thereof being controlled to obtain the desired temperature for said area.
Claim 2
Independent Claim
142 words
A method of air conditioning a building containing a plurality of enclosed areas, having first and second central station conditioning apparatus for supplying respectively, conditioned primary and secondary air to each of the enclosed areas comprising the steps of: A. supplying a constant volume of secondary air to a preselected enclosed area; B. sensing the temperature of the air in the preselected enclosed area; C. generating a signal, the magnitude thereof being related to the temperature of the air in the enclosed area; D. supplying a constant volume of primary air to each of the enclosed areas, the temperature thereof being related to said signal; and E. supplying secondary air to each of the other enclosed areas simultaneously with the supply of secondary air to said preselected enclosed area, the volume thereof being controlled to obtain the desired temperature for said area.
Claim 3
Dependent Claim
175 words
An air conditioning system for conditioning the air in a plurality of enclosed areas in a building including first and second central station conditioning apparatus for supplying primary and secondary air to each of the enclosed areas comprising: A. means for supplying a constant volume of secondary air to a preselected enclosed area; B. means for sensing the temperature of the air in said preselected enclosed area including means for generating a control signal related thereto; C. means operable to receive the control signal to regulate the operation of said first central station conditioning apparatus to supply a constant volume of primary air at a temperature related to said control signal to each of the enclosed areas; and D. means for supplying conditioned secondary air to each of the other areas in the enclosure simultaneously with the supply of secondary air to said preselected area, said means including means to vary the volume of secondary air supplied to each of said other areas, said last-mentioned means operating to obtain the desired temperature for said area.
Claim 4
Dependent Claim
175 words
An air conditioning system for conditioning the air in a plurality of enclosed areas in a building including first and second central station conditioning apparatus for supplying primary and secondary air to each of the enclosed areas comprising: A. means for supplying a constant volume of secondary air to a preselected enclosed area; B. means for sensing the temperature of the air in said preselected enclosed area including means for generating a control signal related thereto; C. means operable to receive the control signal to regulate the operation of said first central station conditioning apparatus to supply a constant volume of primary air at a temperature related to said control signal to each of the enclosed areas; and D. means for supplying conditioned secondary air to each of the other areas in the enclosure simultaneously with the supply of secondary air to said preselected area, said means including means to vary the volume of secondary air supplied to each of said other areas, said last-mentioned means operating to obtain the desired temperature for said area.
Claim 5
Dependent Claim
42 words
The method in accordance with claim 1 wherein the supply of primary air is operable to regulate the temperature of the air in each of the enclosures to compensate for transmission losses and solar load factors present in each of the areas.
Claim 6
Dependent Claim
31 words
The air conditioning system in accordance with claim 2 wherein the primary air supplied to each of the areas compensates for transmission losses and solar load factors present in the area.
References Cited (Backward Citations)
US3441080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |