US3867980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning system
Assignee: Carrier Corp
•
Filing: 1972-12-01
•
Granted: 1975-02-25
•
Expires: 1992-12-01
Abstract
Abstract An air conditioning system including a ceiling air terminal operable to discharge conditioned air into a room and adapted to be connected to first and second sources of conditioned air. The first source provides air at a temperature level which varies inversely to changes in the outdoor air temperature. The air is discharged from the terminal along the ceiling towards the peripheral wall of the room to compensate for transmission gains or losses. The second source provides air at a predetermined temperature level. The air is discharged from the terminal along the ceiling of the room towards the interior thereof to compensate for the remaining cooling load therein, the volume of the air being varied in accordance with changes in the cooling load. The volume of the variable temperature air discharged into the room is maintained constant irrespective of changes in the pressure of the air supplied to the terminal.
Inventors
- 👤 Darwin G Traver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:50
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/044; F24F3/0442; F24F3/0444; E; E04; E04B; E04B9/00; E04B9/02; E04B2009/026
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
246 words
An air conditioning system for conditioning the air in a plurality of enclosed areas in a building, each of the enclosed areas having a peripheral portion requiring conditioned air having a variable temperature and an interior portion requiring conditioned air at a constant temperature, said system comprising: a. conditioned air supply terminal disposed in the ceiling of an individual enclosed area; b. first central station conditioning apparatus to provide conditioned air at a varying temperature level; c. means to supply said varying temperature conditioned air to a first portion of said air terminal; d. second central station conditioning apparatus to provide conditioned air at a predetermined temperature level; e. means to supply said conditioned air from said second central station apparatus to a second portion of said air terminal, said terminal including means to maintain the conditioned air in said first portion separate from said conditioned air in said second portion; and f. said terminal further comprising discharge means, a first section thereof being in communication with said first portion of said terminal, said first section directing the varying temperature conditioned air across the ceiling towards the peripheral wall of said area, said conditioned air compensating for transmission gains or losses caused by heat being transmitted through said peripheral wall, a second section of said discharge means being in communication with said second portion of said terminal to discharge the conditioned air from said second portion across the ceiling towards the interior portion of said area.
Claim 2
Dependent Claim
246 words
An air conditioning system for conditioning the air in a plurality of enclosed areas in a building, each of the enclosed areas having a peripheral portion requiring conditioned air having a variable temperature and an interior portion requiring conditioned air at a constant temperature, said system comprising: a. conditioned air supply terminal disposed in the ceiling of an individual enclosed area; b. first central station conditioning apparatus to provide conditioned air at a varying temperature level; c. means to supply said varying temperature conditioned air to a first portion of said air terminal; d. second central station conditioning apparatus to provide conditioned air at a predetermined temperature level; e. means to supply said conditioned air from said second central station apparatus to a second portion of said air terminal, said terminal including means to maintain the conditioned air in said first portion separate from said conditioned air in said second portion; and f. said terminal further comprising discharge means, a first section thereof being in communication with said first portion of said terminal, said first section directing the varying temperature conditioned air across the ceiling towards the peripheral wall of said area, said conditioned air compensating for transmission gains or losses caused by heat being transmitted through said peripheral wall, a second section of said discharge means being in communication with said second portion of said terminal to discharge the conditioned air from said second portion across the ceiling towards the interior portion of said area.
Claim 3
Dependent Claim
54 words
The air conditioning system in accordance with claim 1 wherein the temperature of said varying temperature conditioned air is maintained above the level at which transmission gains or losses are exactly compensated for, to thereby maintain at least a minimum flow of said second conditioned air from said second section of said discharge means.
References Cited (Backward Citations)
US3664253A
Cited
US3623543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |