US3217626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling diffuser
Assignee: Air Devices Inc
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Filing: 1962-04-30
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Granted: 1965-11-16
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 George J Sweeney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:05
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A CEILING OR WALL DIFFUSER HAVING AN INLET SIDE AND AN OUTLET SIDE FOR CONTROLLING THE FLOW AND DIRECTION OF AIR INTO A ROOM THROUGH A WALL AND HAVING A RECTANGULAR FRAME FORMED OF SIDE AND END FRAME WALLS EACH PROVIDED WITH AN OUTSIDE FLUSH FLANGE TO BE FITTED AGAINST THE WALL, SAID FRAME WALLS EXTENDING INWARDLY THROUGH THE OPENING IN THE WALL, A PLURALITY OF PARALLEL AXIAL RODS MOUNTED FOR ROTATION IN THE INWARDLY DIRECTED END WALLS, A VANE ELEMENT ON EACH OF SAID RODS, SAID VANE ELEMENTS HAVING OUTWARDLY CURVED PORTIONS ON EACH SIDE OF SAID RODS, EACH PORTION BEING CONVEXLY CURVED IN ONE DIRECTION AND CONCAVELY CURVED IN THE OTHER DIRECTION, THE OUTER EDGE PORTIONS OF EACH OF THE VANE ELEMENTS TERMINATING IN OUTWARDLY INCLINED PLANES FACING IN THE SAME DIRECTION.
Claim 2
Dependent Claim
134 words
A CEILING OR WALL DIFFUSER HAVING AN INLET SIDE AND AN OUTLET SIDE FOR CONTROLLING THE FLOW AND DIRECTION OF AIR INTO A ROOM THROUGH A WALL AND HAVING A RECTANGULAR FRAME FORMED OF SIDE AND END FRAME WALLS EACH PROVIDED WITH AN OUTSIDE FLUSH FLANGE TO BE FITTED AGAINST THE WALL, SAID FRAME WALLS EXTENDING INWARDLY THROUGH THE OPENING IN THE WALL, A PLURALITY OF PARALLEL AXIAL RODS MOUNTED FOR ROTATION IN THE INWARDLY DIRECTED END WALLS, A VANE ELEMENT ON EACH OF SAID RODS, SAID VANE ELEMENTS HAVING OUTWARDLY CURVED PORTIONS ON EACH SIDE OF SAID RODS, EACH PORTION BEING CONVEXLY CURVED IN ONE DIRECTION AND CONCAVELY CURVED IN THE OTHER DIRECTION, THE OUTER EDGE PORTIONS OF EACH OF THE VANE ELEMENTS TERMINATING IN OUTWARDLY INCLINED PLANES FACING IN THE SAME DIRECTION.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |