US4178840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air discharge terminal unit
Assignee: Individual
•
Filing: 1978-03-10
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Granted: 1979-12-18
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Expires: 1998-03-10
Abstract
Abstract An air discharge terminal unit comprises a plenum housing having a main air inlet, a main air outlet and an induced air inlet, the induced air inlet being located unilaterally along the flow path of the air between the main air inlet and the main air outlet to control the flow of air from the main air oulet.
Inventors
- 👤 Nicholas Caknis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:01
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/072; F24F13/26; E; E04; E04B; E04B9/00; E04B9/02; E04B2009/026; F24F2221/00; F24F2221/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
156 words
An air discharge terminal unit comprising a plenum having a main air inlet, an induced air inlet, a first air outlet and a second air outlet, spaced from the first air outlet in a direction away from the induced air inlet, the induced air inlet being located unilaterally along the flow path of a main air stream which flows between the main air inlet and the air outlets, a pair of modulating control vanes located along the flow path of the main air stream on opposite sides thereof, one of said vanes being disposed between said flow path and said induced air inlet, and means for simultaneously moving said vanes toward and away from each other thereby respectively to restrict said main air inlet and expand said main air inlet and respectively to move said one vane away from and toward said induced air opening thereby respectively to expose and to mask said induced air opening.
Claim 2
Dependent Claim
156 words
An air discharge terminal unit comprising a plenum having a main air inlet, an induced air inlet, a first air outlet and a second air outlet, spaced from the first air outlet in a direction away from the induced air inlet, the induced air inlet being located unilaterally along the flow path of a main air stream which flows between the main air inlet and the air outlets, a pair of modulating control vanes located along the flow path of the main air stream on opposite sides thereof, one of said vanes being disposed between said flow path and said induced air inlet, and means for simultaneously moving said vanes toward and away from each other thereby respectively to restrict said main air inlet and expand said main air inlet and respectively to move said one vane away from and toward said induced air opening thereby respectively to expose and to mask said induced air opening.
Claim 3
Dependent Claim
42 words
An air discharge terminal unit according to claim 1, and a second induced air inlet on the side of the other said vane opposite said main air stream, and means for selectively separately opening and closing one of said induced air inlets.
References Cited (Backward Citations)
US4090434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |