Patent US2057403A successfully refreshed from Google Patents.
US3111173A
Expired / Lapsed
US
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Fan with slinger ring
Assignee: Madison Management Group Inc
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Filing: 1960-06-30
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Granted: 1963-11-19
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Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Stephen W Klonoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:42
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/325; F04D29/326; F24; F24F; F24F6/00; F24F6/02; F24F6/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE COMBINATION OF A FAN ROTATABLE ABOUT A CENTRAL AXIS AND COMPRISING A PLURALITY OF SIMILAR CIRCUMAXIALLY SPACED GENERALLY RADIAL BLADES ARRANGED AT SIMILAR PITCH ANGLES, A SLINGER RING DISPOSED AROUND THE FAN ADJACENT AND OUTWARDLY OF THE OUTER EDGE PORTIONS OF THE FAN BLADES, AND A SPRING CONNECTOR ON EACH FAN BLADE ADJACENT THE OUTER EDGE PORTION THEREOF, SAID SPRING CONNECTORS HAVING RESILIENT OUTWARDLY PROJECTING SLINGER RING ENGAGING PORTIONS WHICH ARE DEFLECTED INWARDLY BY THE SAID RING AND WHICH EXERT REACTIVE FORCES THEREON TO FRICTIONALLY AND DETACHABLY HOLD THE SAME IN POSITION AROUND SAID FAN.
Claim 2
Dependent Claim
96 words
THE COMBINATION OF A FAN ROTATABLE ABOUT A CENTRAL AXIS AND COMPRISING A PLURALITY OF SIMILAR CIRCUMAXIALLY SPACED GENERALLY RADIAL BLADES ARRANGED AT SIMILAR PITCH ANGLES, A SLINGER RING DISPOSED AROUND THE FAN ADJACENT AND OUTWARDLY OF THE OUTER EDGE PORTIONS OF THE FAN BLADES, AND A SPRING CONNECTOR ON EACH FAN BLADE ADJACENT THE OUTER EDGE PORTION THEREOF, SAID SPRING CONNECTORS HAVING RESILIENT OUTWARDLY PROJECTING SLINGER RING ENGAGING PORTIONS WHICH ARE DEFLECTED INWARDLY BY THE SAID RING AND WHICH EXERT REACTIVE FORCES THEREON TO FRICTIONALLY AND DETACHABLY HOLD THE SAME IN POSITION AROUND SAID FAN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |