US3217627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side wall 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
2026-11-06 08:30
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A SIDE WALL DIFFUSER, A FRAME, A PLURALITY OF EXTRUDED METAL ADJUSTABLE GRILLE BLADES, EACH HAVING AN INTERMEDIATE ELONGATED RELATIVELY WIDE BLADE PORTION OF GENERALLY ISOSCELES TRIANGULAR CROSS-SECTION WITH A FIXED INLET EDGE TAPERING TO A THIN CROSS-SECTION ADJACENT THE OUTLET EDGE, SAID INLET EDGE BEING OF SEMI-CIRCULAR CROSS-SECTION, SAID OUTLET EDGE BEING OF SEMI-CIRCULAR CROSS-SECTION AND INTERIORLY SHOULDERED TO FORM NARROW OUTLET BAFFLES EXTENDING LONGITUDINALLY ON EACH SIDE OF THE OUTLET BAFFLES EXINTEGRAL PIVOTAL EXTENSIONS EXTENDING AXIALLY OF SAID CIRCULAR CROSS-SECTION OUTLET EDGES BEYOND THE ENDS OF THE BLADE AND ADAPTED TO BE PIVOTALLY RECEIVED IN SAID FRAME IN SPACED APART PARALLEL RELATION.
Claim 2
Dependent Claim
105 words
IN A SIDE WALL DIFFUSER, A FRAME, A PLURALITY OF EXTRUDED METAL ADJUSTABLE GRILLE BLADES, EACH HAVING AN INTERMEDIATE ELONGATED RELATIVELY WIDE BLADE PORTION OF GENERALLY ISOSCELES TRIANGULAR CROSS-SECTION WITH A FIXED INLET EDGE TAPERING TO A THIN CROSS-SECTION ADJACENT THE OUTLET EDGE, SAID INLET EDGE BEING OF SEMI-CIRCULAR CROSS-SECTION, SAID OUTLET EDGE BEING OF SEMI-CIRCULAR CROSS-SECTION AND INTERIORLY SHOULDERED TO FORM NARROW OUTLET BAFFLES EXTENDING LONGITUDINALLY ON EACH SIDE OF THE OUTLET BAFFLES EXINTEGRAL PIVOTAL EXTENSIONS EXTENDING AXIALLY OF SAID CIRCULAR CROSS-SECTION OUTLET EDGES BEYOND THE ENDS OF THE BLADE AND ADAPTED TO BE PIVOTALLY RECEIVED IN SAID FRAME IN SPACED APART PARALLEL RELATION.
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 |