US3744556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air distribution system
Assignee: Carrier Corp
•
Filing: 1970-11-25
•
Granted: 1973-07-10
•
Expires: 1990-11-25
Abstract
Abstract An air distribution system for providing treated air to an enclosure wherein the ceiling of the enclosure defines the lower surface of a plenum. Each of the enclosures served by the system has a heat exchanger disposed in an inlet to the plenum. High velocity primary air is discharged from a suitable duct to draw treated ambient or secondary air from the plenum. Secondary air from the enclosure flows into the plenum by passing in heat transfer relation with the heat exchange medium flowing through the heat exchange coil. A damper operates to regulate the quantity of secondary air drawn from the plenum.
Inventors
- 👤 R Church
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:54
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/26; F24F1/00; F24F1/01; F24F3/00; F24F3/044; F24F2221/00; F24F2221/14; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7848
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
An air distribution system to provide treated air to an enclosure comprising: A. means defining a plenum, at least a portion thereof including the ceiling of the enclosure, said plenum having treated secondary air therein; B. heat exchange means disposed in the ceiling of the enclosure and defining an entrance to said plenum, said heat exchange means having a heat exchange medium flowing therethrough; C. means operable to discharge high velocity primary air into the enclosure, the discharge of such high velocity primary air inducing treated air from said plenum to mix therewith, the discharge of air from said plenum causing secondary air to flow therein through said coil, the air being treated by passing in heat transfer relation with the heat exchange medium flowing through the coil; and D. damper means operable to regulate the quantity of air discharged from the plenum, said damper means including stop means so a minimal flow of air is discharged from said plenum irrespective of the operation of said damper means.
Claim 2
Dependent Claim
168 words
An air distribution system to provide treated air to an enclosure comprising: A. means defining a plenum, at least a portion thereof including the ceiling of the enclosure, said plenum having treated secondary air therein; B. heat exchange means disposed in the ceiling of the enclosure and defining an entrance to said plenum, said heat exchange means having a heat exchange medium flowing therethrough; C. means operable to discharge high velocity primary air into the enclosure, the discharge of such high velocity primary air inducing treated air from said plenum to mix therewith, the discharge of air from said plenum causing secondary air to flow therein through said coil, the air being treated by passing in heat transfer relation with the heat exchange medium flowing through the coil; and D. damper means operable to regulate the quantity of air discharged from the plenum, said damper means including stop means so a minimal flow of air is discharged from said plenum irrespective of the operation of said damper means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |