US3085632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan
Assignee: CANYON SWI Inc
•
Filing: 1959-12-08
•
Granted: 1963-04-16
•
Expires: 1979-12-08
Abstract
No abstract record available.
Inventors
- 👤 Roy F Schwegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:38
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN AN AXIAL FLOW FAN, A FLANGED DISK; A PLURALITY OF OPEN END SLOTS AT EQUALLY SPACED INTERVALS ABOUT THE PERIPHERY OF THE FLANGE OF SAID DISK; FAN BLADES INCLUDING SUPPORTING PLATES INTERGRALLY CONNECTED TO SAID BLADES AT THE ROOTS THEREOF, SAID PLATES HAVING A CURVATURE CORRESPONDING TO THE PERIPHERAL CURVATURE OF SAID FLANGE, THE CONFIGURATION OF SAID SLOTS CORRESPONDING TO THE TRANSVERSE CONFIGURATION OF SAID BLADES WHEREBY SAID BLADES MAY FIT WITHIN SAID SLOTS AND SAID BLADE SUPPORTING PLATES MAY FIT AGAINST THE INNER PERIPHERY OF SAID FLANGE; REINFORCING BAND MEANS WITHIN SAID FLANGE AND ADAPTED TO BEAR AGAINST THE EXPOSED SURFACES OF SAID BLADE SUPPORTING PLATES; AND FASTENING MEANS EXTENDING THROUGH SAID FLANGE, BLADE SUPPORTING PLATES AND BAND MEANS FOR LOCKING THE ASSEMBLY TOGETHER.
Claim 2
Dependent Claim
126 words
IN AN AXIAL FLOW FAN, A FLANGED DISK; A PLURALITY OF OPEN END SLOTS AT EQUALLY SPACED INTERVALS ABOUT THE PERIPHERY OF THE FLANGE OF SAID DISK; FAN BLADES INCLUDING SUPPORTING PLATES INTERGRALLY CONNECTED TO SAID BLADES AT THE ROOTS THEREOF, SAID PLATES HAVING A CURVATURE CORRESPONDING TO THE PERIPHERAL CURVATURE OF SAID FLANGE, THE CONFIGURATION OF SAID SLOTS CORRESPONDING TO THE TRANSVERSE CONFIGURATION OF SAID BLADES WHEREBY SAID BLADES MAY FIT WITHIN SAID SLOTS AND SAID BLADE SUPPORTING PLATES MAY FIT AGAINST THE INNER PERIPHERY OF SAID FLANGE; REINFORCING BAND MEANS WITHIN SAID FLANGE AND ADAPTED TO BEAR AGAINST THE EXPOSED SURFACES OF SAID BLADE SUPPORTING PLATES; AND FASTENING MEANS EXTENDING THROUGH SAID FLANGE, BLADE SUPPORTING PLATES AND BAND MEANS FOR LOCKING THE ASSEMBLY TOGETHER.
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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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |