US3603379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating and cooling system
Assignee: Carrier Corp
•
Filing: 1969-04-08
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Granted: 1971-09-07
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Expires: 1989-04-08
Abstract
Abstract A heating and cooling system for controlling the temperature of air circulating within a plurality of separate areas, located within a common enclosure, to provide comfort conditioning to occupants of the areas comprising a plurality of independently operable air-conditioning apparatus including heat-transfer means located within each of the areas, means to circulate air to be supplied to the area over said heat-transfer means in heattransfer relation with the refrigerant of said apparatus and control means operable to vary the temperature of the air circulating over the heat-transfer means to obtain desired thermal effects. A hot water circulating loop and a cold water circulating loop are provided, the refrigerant passing in heattransfer relation with the hot water when heating the air and passing in heat transfer relation with the cold water when cooling the air.
Inventors
- 👤 Louis H Leonard Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:26
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/06; F24F3/08; F24F5/00; F24F5/0003
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
262 words
A method of varying the temperature of air within an enclosure, including a plurality of individual areas, each having an air-conditioning apparatus comprising heat-transfer means including a first heat-exchange coil having a refrigerant charge contained therein for varying the temperature of air flowing thereover comprising: A. supplying a relatively cold heat-exchange medium through a first conduit to a plurality of second heat-exchange coils associated with said first conduit; B. supplying a relatively warm heat-exchange medium through a second conduit to a plurality of third heat-exchange coils associated with said second conduit; C. actuating a first valve to communicate at least a portion of said first heat-exchange coil with said second heat-exchange coil when it is desired to cool said air, said refrigerant flowing to said second heat-exchange coil where it passes in heat-transfer relation with said relatively cold medium, whereby the refrigerant is condensed; said condensed refrigerant returning by gravity to said first heat-exchange coil where it passes in heat-transfer relation with air to be cooled, whereby said refrigerant is vaporized and said air is cooled; and D. actuating a second valve to communicate at least a portion of said first heat-exchange coil with said third heat-exchange coil when it is desired to heat said air, said refrigerant flowing by gravity to said third heat-exchange coil where it passes in heat-transfer relation with said relatively warm medium, whereby the refrigerant is vaporized, said vaporized refrigerant returning to said first heat-exchange coil where it passes in heat-transfer relation with air to be warmed whereby said refrigerant is condensed and said air is warmed.
Claim 2
Independent Claim
262 words
A method of varying the temperature of air within an enclosure, including a plurality of individual areas, each having an air-conditioning apparatus comprising heat-transfer means including a first heat-exchange coil having a refrigerant charge contained therein for varying the temperature of air flowing thereover comprising: A. supplying a relatively cold heat-exchange medium through a first conduit to a plurality of second heat-exchange coils associated with said first conduit; B. supplying a relatively warm heat-exchange medium through a second conduit to a plurality of third heat-exchange coils associated with said second conduit; C. actuating a first valve to communicate at least a portion of said first heat-exchange coil with said second heat-exchange coil when it is desired to cool said air, said refrigerant flowing to said second heat-exchange coil where it passes in heat-transfer relation with said relatively cold medium, whereby the refrigerant is condensed; said condensed refrigerant returning by gravity to said first heat-exchange coil where it passes in heat-transfer relation with air to be cooled, whereby said refrigerant is vaporized and said air is cooled; and D. actuating a second valve to communicate at least a portion of said first heat-exchange coil with said third heat-exchange coil when it is desired to heat said air, said refrigerant flowing by gravity to said third heat-exchange coil where it passes in heat-transfer relation with said relatively warm medium, whereby the refrigerant is vaporized, said vaporized refrigerant returning to said first heat-exchange coil where it passes in heat-transfer relation with air to be warmed whereby said refrigerant is condensed and said air is warmed.
Claim 3
Independent Claim
239 words
A method of heating or cooling air within an enclosure including a plurality of individual areas, each having air-conditioning apparatus comprising a first heat-transfer coil having a refrigerant charge contained therein for varying the temperature of air flowing thereover comprising: A. supplying a relatively cold heat-exchange medium through a first conduit to a plurality of second heat-exchange coils associated with said first conduit; B. supplying a relatively warm heat-exchange medium through a second conduit to a plurality of third heat-exchange coils associated with said second conduit; and C. selectively communicating said first heat-exchange coil with said second heat-exchange coil when it is desired to cool said air, said refrigerant flowing to said second heat-exchange coil where it passes in heat-transfer relation with said relatively cold medium, whereby the refrigerant is condensed, said condensed refrigerant returning by gravity to said first heat-exchange coil, where it passes in heat-transfer relation with air to be cooled, whereby said refrigerant is vaporized and said air is cooled; and selectively communicating said first heat-exchange coil with said third heat-exchange coil when it is desired to warm said air, said refrigerant flowing to said third heat-exchange coil by gravity where it passes in heat-transfer relation with said relatively warm medium, whereby the refrigerant is vaporized, said vaporized refrigerant returning to said first heat-exchange coil where it passes in heat-transfer relation with air to be warmed, whereby said refrigerant is condensed and said air is warmed.
Claim 4
Independent Claim
239 words
A method of heating or cooling air within an enclosure including a plurality of individual areas, each having air-conditioning apparatus comprising a first heat-transfer coil having a refrigerant charge contained therein for varying the temperature of air flowing thereover comprising: A. supplying a relatively cold heat-exchange medium through a first conduit to a plurality of second heat-exchange coils associated with said first conduit; B. supplying a relatively warm heat-exchange medium through a second conduit to a plurality of third heat-exchange coils associated with said second conduit; and C. selectively communicating said first heat-exchange coil with said second heat-exchange coil when it is desired to cool said air, said refrigerant flowing to said second heat-exchange coil where it passes in heat-transfer relation with said relatively cold medium, whereby the refrigerant is condensed, said condensed refrigerant returning by gravity to said first heat-exchange coil, where it passes in heat-transfer relation with air to be cooled, whereby said refrigerant is vaporized and said air is cooled; and selectively communicating said first heat-exchange coil with said third heat-exchange coil when it is desired to warm said air, said refrigerant flowing to said third heat-exchange coil by gravity where it passes in heat-transfer relation with said relatively warm medium, whereby the refrigerant is vaporized, said vaporized refrigerant returning to said first heat-exchange coil where it passes in heat-transfer relation with air to be warmed, whereby said refrigerant is condensed and said air is warmed.
Claim 5
Dependent Claim
224 words
A heating and cooling system for a plurality of areas comprising: A. a first circulating system through which a heat-exchange medium is passed including: i. means operable to chill said medium to a relatively cold predetermined temperature, and ii. first conduit means; B. a second circulating system through which a heat-exchange medium is passed including: i. means operable to heat said medium to a relatively warm predEtermined temperature, and ii. second conduit means; C. a plurality of heat-exchange means disposed in said first conduit means said relatively cold heat-exchange medium passing therethrough; D. a plurality of heat-exchange means disposed in said second conduit means said relatively warm heat-exchange medium passing therethrough; E. a plurality of independently operable air-conditioning apparatus including: i. a heat-exchanger having a refrigerant charge contained therein, and ii. means associated with said heat-exchanger to route air thereover, said air being thereafter supplied to the area being served by said apparatus, said air having passed in heat-transfer relation with said refrigerant in said heat-exchanger; and F. first and second valve means selectively operable to direct said refrigerant to said heat-exchange means disposed in said first conduit means when it is desired to cool the area being served and to direct said refrigerant to said heat-exchange means disposed in said second conduit means when it is desired to heat the area being served.
Claim 6
Dependent Claim
224 words
A heating and cooling system for a plurality of areas comprising: A. a first circulating system through which a heat-exchange medium is passed including: i. means operable to chill said medium to a relatively cold predetermined temperature, and ii. first conduit means; B. a second circulating system through which a heat-exchange medium is passed including: i. means operable to heat said medium to a relatively warm predEtermined temperature, and ii. second conduit means; C. a plurality of heat-exchange means disposed in said first conduit means said relatively cold heat-exchange medium passing therethrough; D. a plurality of heat-exchange means disposed in said second conduit means said relatively warm heat-exchange medium passing therethrough; E. a plurality of independently operable air-conditioning apparatus including: i. a heat-exchanger having a refrigerant charge contained therein, and ii. means associated with said heat-exchanger to route air thereover, said air being thereafter supplied to the area being served by said apparatus, said air having passed in heat-transfer relation with said refrigerant in said heat-exchanger; and F. first and second valve means selectively operable to direct said refrigerant to said heat-exchange means disposed in said first conduit means when it is desired to cool the area being served and to direct said refrigerant to said heat-exchange means disposed in said second conduit means when it is desired to heat the area being served.
Claim 7
Dependent Claim
25 words
A heating and cooling system in accordance with claim 3 wherein said relatively cold heat-exchange medium comprises a mixture of cold water and ice particles.
Claim 8
Dependent Claim
237 words
An air-conditioning system for varying the temperature of air within an enclosure including a plurality of areas comprising: A. a first circulating system through which a heat-exchange medium is passed including: i. means operable to chill said medium to a relatively cold predetermined temperature, and ii. first conduit means; B. a second circulating system through which a heat-exchange medium is passed including: i. means operable to heat said medium to a relatively warm predetermined temperature, and ii. second conduit means; C. a plurality of heat-exchange means disposed in said first conduit means said relatively cold medium passing therethrough; D. a plurality of heat-exchange means disposed in said second conduit means said relatively warm heat-exchange medium passing therethrough; E. a plurality of independently operable air-conditioning apparatus including: i. heat-transfer means having a refrigerant charge contained therein, and ii. means associated with said heat-transfer means to route air thereover, said air being thereafter supplied to the area being served by said air having passed in heat-transfer relation with said refrigerant in said heat-transfer means; and F. valve means operable to direct at least a portion of said refrigerant to said heat-exchange means disposed in said first conduit means when it is desired to cool said air, said valve means being further operable to direct at least a portion of said refrigerant to said heat-exchange means disposed in said second conduit means when it is desired to heat said air.
Claim 9
Dependent Claim
237 words
An air-conditioning system for varying the temperature of air within an enclosure including a plurality of areas comprising: A. a first circulating system through which a heat-exchange medium is passed including: i. means operable to chill said medium to a relatively cold predetermined temperature, and ii. first conduit means; B. a second circulating system through which a heat-exchange medium is passed including: i. means operable to heat said medium to a relatively warm predetermined temperature, and ii. second conduit means; C. a plurality of heat-exchange means disposed in said first conduit means said relatively cold medium passing therethrough; D. a plurality of heat-exchange means disposed in said second conduit means said relatively warm heat-exchange medium passing therethrough; E. a plurality of independently operable air-conditioning apparatus including: i. heat-transfer means having a refrigerant charge contained therein, and ii. means associated with said heat-transfer means to route air thereover, said air being thereafter supplied to the area being served by said air having passed in heat-transfer relation with said refrigerant in said heat-transfer means; and F. valve means operable to direct at least a portion of said refrigerant to said heat-exchange means disposed in said first conduit means when it is desired to cool said air, said valve means being further operable to direct at least a portion of said refrigerant to said heat-exchange means disposed in said second conduit means when it is desired to heat said air.
Claim 10
Dependent Claim
26 words
A heating and cooling system in accordance with claim 5 wherein said relatively cold heat exchange medium comprises a mixture of cold water and ice particles.
Claim 11
Dependent Claim
243 words
A heating and cooling system for a plurality of areas, including an air-conditioning apparatus disposed in each of said areas including a heating-exchange coil having a refrigerant charge, comprising: i. means to cool a heat-exchange medium; ii. conduit means connected to said cooling means for circulating said cool heat-exchange medium; iii. a plurality of first heat-exchange means disposed in said conduit means in heat-transfer relation with said cold medium; iv. means to warm said heat-exchange medium; v. conduit means connected to said heating means for circulating said warm heat-exchange medium; vi. a plurality of second heat-exchange means disposed in said conduit means in heat-transfer relation with said warm medium; and vii. means for selectively operating said air-conditioning apparatus to either heat the area being served by said apparatus or cool the area being served by the apparatus, said meaNs including first valve means operable only to pass said refrigerant of said apparatus in heat-transfer relation with said cold medium in said first heat-exchange means when it is desired to cool said area, and said means further including second valve means operable only to pass said refrigerant in heat-transfer relation with said warm medium in said second heat-exchange means when it is desired to heat said area, said refrigerant flowing by gravity from said first heat-exchange means to said heat-exchange coil when cooling is desired and said refrigerant flowing by gravity from said heat-exchange coil to said second heat-exchange means when heating is desired.
Claim 12
Dependent Claim
243 words
A heating and cooling system for a plurality of areas, including an air-conditioning apparatus disposed in each of said areas including a heating-exchange coil having a refrigerant charge, comprising: i. means to cool a heat-exchange medium; ii. conduit means connected to said cooling means for circulating said cool heat-exchange medium; iii. a plurality of first heat-exchange means disposed in said conduit means in heat-transfer relation with said cold medium; iv. means to warm said heat-exchange medium; v. conduit means connected to said heating means for circulating said warm heat-exchange medium; vi. a plurality of second heat-exchange means disposed in said conduit means in heat-transfer relation with said warm medium; and vii. means for selectively operating said air-conditioning apparatus to either heat the area being served by said apparatus or cool the area being served by the apparatus, said meaNs including first valve means operable only to pass said refrigerant of said apparatus in heat-transfer relation with said cold medium in said first heat-exchange means when it is desired to cool said area, and said means further including second valve means operable only to pass said refrigerant in heat-transfer relation with said warm medium in said second heat-exchange means when it is desired to heat said area, said refrigerant flowing by gravity from said first heat-exchange means to said heat-exchange coil when cooling is desired and said refrigerant flowing by gravity from said heat-exchange coil to said second heat-exchange means when heating is desired.
References Cited (Backward Citations)
US2715514A
Cited
US3127929A
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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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |