US3743010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning apparatus
Assignee: Carver Corp
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Filing: 1971-03-31
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Granted: 1973-07-03
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Expires: 1991-03-31
Abstract
Abstract An air conditioning apparatus including refrigeration means and heating means for selectively heating and cooling a plurality of zones, the apparatus being provided with separate heating means and separate refrigerant evaporator coils for each zone served thereby. High pressure, hot refrigerant vapor from the refrigerant compressor may be passed through a common refrigerant coil in heat exchange relation with liquid refrigerant from the refrigerant condenser to provide a load on the compressor when the refrigeration system is energized and the load imposed thereon by the separate evaporator coils is below the safe minimal compressor load. When desired, outside air may be introduced into the system through the common refrigerant coil, the air being cooled and dehumidified by the common refrigerant coil before passage to the individual zones.
Inventors
- 👤 S Farney
- 👤 R Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
F; F24; F24F; F24F3/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
206 words
An air conditioning apparatus adapted to treat a plurality of zones, said apparatus comprising: A. a housing B. first fan means disposed within said housing for forcing air therethrough before passage thereof to the individual zones; C. a refrigeration system within said housing for cooling the air forced therethrough, said refrigeration system including: 1. refrigerant compression means; 2. a refrigerant condenser adapted to condense high pressure refrigerant vapor from said compression means; 3. a plurality of evaporator circuits receiving refrigerant from said condenser, each circuit being adapted to serve an individual zone; and 4. means for controlling the flow of refrigerant from the condenser to the individual evaporator circuits; D. a plurality of separate heating means disposed within said housing serving separate zones; E. baffle means forming a plurality of passages within said housing, each passage containing at least one of said evaporator circuits and at least one of said heating means for passage of air thereover from said first fan means, each of the air passages being adapted for communication with a zone served by the apparatus; and F. damper means adapted to regulate the proportion of air returned from the individual zones and the proportion of outside air supplied to said fiRst fan means.
Claim 2
Dependent Claim
206 words
An air conditioning apparatus adapted to treat a plurality of zones, said apparatus comprising: A. a housing B. first fan means disposed within said housing for forcing air therethrough before passage thereof to the individual zones; C. a refrigeration system within said housing for cooling the air forced therethrough, said refrigeration system including: 1. refrigerant compression means; 2. a refrigerant condenser adapted to condense high pressure refrigerant vapor from said compression means; 3. a plurality of evaporator circuits receiving refrigerant from said condenser, each circuit being adapted to serve an individual zone; and 4. means for controlling the flow of refrigerant from the condenser to the individual evaporator circuits; D. a plurality of separate heating means disposed within said housing serving separate zones; E. baffle means forming a plurality of passages within said housing, each passage containing at least one of said evaporator circuits and at least one of said heating means for passage of air thereover from said first fan means, each of the air passages being adapted for communication with a zone served by the apparatus; and F. damper means adapted to regulate the proportion of air returned from the individual zones and the proportion of outside air supplied to said fiRst fan means.
Claim 3
Dependent Claim
14 words
a refrigerant condenser adapted to condense high pressure refrigerant vapor from said compression means;
Claim 4
Dependent Claim
14 words
a refrigerant condenser adapted to condense high pressure refrigerant vapor from said compression means;
Claim 5
Dependent Claim
70 words
An air conditioning apparatus according to claim 1 further including an outside air inlet formed in said housing; a heat exchange coil disposed between said outside air inlet and said first fan means; and, means for passing refrigerant from said condenser through said heat exchange coil in heat exchange relation with outside air passed thereover for cooling and dehumidifying the outside air before passage thereof to said first fan means.
Claim 6
Dependent Claim
25 words
means actuable for transmitting refrigerant from the discharge side of said compressor to said heat exchange means to provide a load on said compressor; and
Claim 7
Dependent Claim
25 words
means actuable for transmitting refrigerant from the discharge side of said compressor to said heat exchange means to provide a load on said compressor; and
Claim 8
Dependent Claim
18 words
a plurality of evaporator circuits receiving refrigerant from said condenser and transmitting refrigerant to said compression means; and
Claim 9
Dependent Claim
18 words
a plurality of evaporator circuits receiving refrigerant from said condenser and transmitting refrigerant to said compression means; and
Claim 10
Dependent Claim
14 words
means responsive to minimum load conditions on said compressor for actuating said transmitting means.
Claim 11
Dependent Claim
14 words
means responsive to minimum load conditions on said compressor for actuating said transmitting means.
Claim 12
Dependent Claim
172 words
An air conditioning apparatus according to claim 1 and further including: second fan means for circulating outside air over said condenser to condense refrigerant therein; and means forming a mixing chamber in said housing, said mixing chamber being supplied with return air from the zones served by the apparatus; and wherein said damper means includes: a first damper disposed between said mixing chamber and said first fan means for regulating the quantity of return air supplied to said fan means; a second damper for communicating said mixing chamber with said second fan means, said second damper being located for passage of air from said mixing chamber to a location downstream from said condenser and upstream from said second fan means for drawing return air from said mixing chamber and exhausting the return air to atmosphere; an outside air inlet formed in said housing; and a third damper disposed between said air inlet and said first fan means, said third damper regulating the amount of outside air supplied to said first fan means.
Claim 13
Dependent Claim
20 words
a plurality of evaporator circuits receiving refrigerant from said condenser, each circuit being adapted to serve an individual zone; and
Claim 14
Dependent Claim
20 words
a plurality of evaporator circuits receiving refrigerant from said condenser, each circuit being adapted to serve an individual zone; and
Claim 15
Dependent Claim
112 words
means for controlling the flow of refrigerant from the condenser to the individual evaporator circuits; D. a plurality of separate heating means disposed within said housing serving separate zones; E. baffle means forming a plurality of passages within said housing, each passage containing at least one of said evaporator circuits and at least one of said heating means for passage of air thereover from said first fan means, each of the air passages being adapted for communication with a zone served by the apparatus; and F. damper means adapted to regulate the proportion of air returned from the individual zones and the proportion of outside air supplied to said fiRst fan means.
Claim 16
Dependent Claim
112 words
means for controlling the flow of refrigerant from the condenser to the individual evaporator circuits; D. a plurality of separate heating means disposed within said housing serving separate zones; E. baffle means forming a plurality of passages within said housing, each passage containing at least one of said evaporator circuits and at least one of said heating means for passage of air thereover from said first fan means, each of the air passages being adapted for communication with a zone served by the apparatus; and F. damper means adapted to regulate the proportion of air returned from the individual zones and the proportion of outside air supplied to said fiRst fan means.
Claim 17
Dependent Claim
62 words
An air conditioning apparatus according to claim 3 further including a heat exchange coil disposed between said outside air inlet and said first fan means; and means for passing refrigerant from said condenser through said heat exchange coil in heat exchange relation with outside air passed thereover for cooling and dehumidifying the outside air before passage thereof to said first fan means.
Claim 18
Dependent Claim
75 words
means for controlling the flow of refrigerant from said condenser to the individual evaporator circuits and; D. heat exchange means operatively associated with said refrigeration system for passage of refrigerant therethrough from the high pressure side of the refrigeration system to provide a load on said compression means which, in conjunction with the load imposed on said compression means by said evaporator circuits, is at least equal to the minimum capacity of said compression means.
Claim 19
Dependent Claim
75 words
means for controlling the flow of refrigerant from said condenser to the individual evaporator circuits and; D. heat exchange means operatively associated with said refrigeration system for passage of refrigerant therethrough from the high pressure side of the refrigeration system to provide a load on said compression means which, in conjunction with the load imposed on said compression means by said evaporator circuits, is at least equal to the minimum capacity of said compression means.
Claim 20
Dependent Claim
49 words
An air conditioning apparatus for use with a plurality of zones, said apparatus comprising: A. a housing; B. fan means for forcing air through said housing before passage thereof to the individual zones; C. a refrigeration system for cooling the air forced through the apparatus, said refrigeration system including:
Claim 21
Dependent Claim
49 words
An air conditioning apparatus for use with a plurality of zones, said apparatus comprising: A. a housing; B. fan means for forcing air through said housing before passage thereof to the individual zones; C. a refrigeration system for cooling the air forced through the apparatus, said refrigeration system including:
Claim 22
Dependent Claim
40 words
An air conditioning apparatus according to claim 5 further including means for introducing outside air into said system across said heat exchange means; and refrigerant expansion means for regulating flow of refrigerant from said condenser to said heat exchange means.
Claim 23
Dependent Claim
59 words
An air conditioning apparatus according to claim 6 further including valve means adapted to regulate flow of refrigerant vapor from said compression means to said heat exchange means to increase the load on said heat exchange means so that the load imposed thereby on said compression means is at least equal to the minimum capacity of said compression means.
Claim 24
Dependent Claim
55 words
An air conditioning apparatus according to claim 5 further including refrigerant expansion means for regulating the flow of refrigerant from said condenser to said heat exchange means, and valve means adapted to regulate flow of refrigerant vapor from said compression means to saId heat exchange means to provide a minimum load on said compression means.
Claim 25
Dependent Claim
66 words
An air conditioning apparatus including: A. a compressor for compensating hot gaseous refrigerant; B. a condenser operatively connected to said compressor for condensing refrigerant received from said compressor; C. evaporator means for absorbing heat from the space surrounding said evaporator, said evaporator receiving refrigerant from said condenser for transfer to said compressor; and D. means for maintaining a minimum load on said compressor said means comprising:
Claim 26
Dependent Claim
66 words
An air conditioning apparatus including: A. a compressor for compensating hot gaseous refrigerant; B. a condenser operatively connected to said compressor for condensing refrigerant received from said compressor; C. evaporator means for absorbing heat from the space surrounding said evaporator, said evaporator receiving refrigerant from said condenser for transfer to said compressor; and D. means for maintaining a minimum load on said compressor said means comprising:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |