US3335654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating apparatus
Assignee: American Radiator and Standard Sanitary Corp
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Filing: 1966-02-28
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Granted: 1967-08-15
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Harry R Killam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/007; F24F7/013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A VENTILATOR COMPRISING, IN COMBINATION, A HOUSING HAVING A FLAT TOP WALL AND A PAIR OF SPACED FLAT SIDE WALLS, A VERTICAL PARTITION DIVIDING SAID HOUSING INTO FIRST AND SECOND CHAMBERS EACH HAVING A LONGITUDINAL AXIS, AN ELECTRIC MOTOR DISPOSED IN SAID FIRST CHAMBER AND SUPPORTED BY SAID PARTITION, SAID MOTOR HAVING A DRIVE SHAFT EXTENDING THROUGH SAID PARTITION, A CENTRIFUGAL BLOWER DISPOSED IN SAID SECOND CHAMBER AND DRIVABLY CONNECTED TO SAID SHAFT, THE AXIS OF ROTATION OF SAID BLOWER BEING OFFSET WITH RESPECT TO THE LONGITUDINAL AXIS OF SAID SECOND CHAMBER, SAID HOUSING HAVING A FRONT WALL DEFINING AN INLET COMMUNICATING WITH SAID CENTRIFUGAL BLOWER, SAID HOUSING ALSO HAVING A BOTTOM WALL DEFINING AN OUTLET COMMUNICATING WITH SAID SECOND CHAMBER AND EXTENDING ANGULARLY DOWNWARDLY AND OUTWARDLY THEREFROM.
Claim 2
Dependent Claim
128 words
A VENTILATOR COMPRISING, IN COMBINATION, A HOUSING HAVING A FLAT TOP WALL AND A PAIR OF SPACED FLAT SIDE WALLS, A VERTICAL PARTITION DIVIDING SAID HOUSING INTO FIRST AND SECOND CHAMBERS EACH HAVING A LONGITUDINAL AXIS, AN ELECTRIC MOTOR DISPOSED IN SAID FIRST CHAMBER AND SUPPORTED BY SAID PARTITION, SAID MOTOR HAVING A DRIVE SHAFT EXTENDING THROUGH SAID PARTITION, A CENTRIFUGAL BLOWER DISPOSED IN SAID SECOND CHAMBER AND DRIVABLY CONNECTED TO SAID SHAFT, THE AXIS OF ROTATION OF SAID BLOWER BEING OFFSET WITH RESPECT TO THE LONGITUDINAL AXIS OF SAID SECOND CHAMBER, SAID HOUSING HAVING A FRONT WALL DEFINING AN INLET COMMUNICATING WITH SAID CENTRIFUGAL BLOWER, SAID HOUSING ALSO HAVING A BOTTOM WALL DEFINING AN OUTLET COMMUNICATING WITH SAID SECOND CHAMBER AND EXTENDING ANGULARLY DOWNWARDLY AND OUTWARDLY THEREFROM.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |