Patent US3123286A successfully refreshed from Google Patents.
US3123286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
abbott
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:44
CPC Classifications
F; F04; F04D; F04D17/00; F04D17/08; F04D17/16; F04D17/167; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A CENTRIFUGAL BLOWER ASSEMBLY COMPRISING A SUPPORT AND A FLEXIBLE ANNULAR BLOWER MEMBER OF POROUS MATERIAL SUPPORTED THEREON, SAID SUPPORT COMPRISING A HUB ADAPTED TO BE MOUNTED ON A DRIVE SHAFT AND A PLURALITY OF SPACED ARMS CONNECTED TO SAID HUB AND PARALLEL TO AND SPACED EQUAL DISTANCES FROM SAID SHAFT, SAID ARMS HAVING RADIALLY EXTENDING END PORTIONS TERMINATING IN DISC-SHAPED TIPS, SAID BLOWER MEMBER HAVING A PLURALITY OF SLOTS THEREIN ADAPTED TO PASS OVER AND TO BE REMOVABLY RECEIVED ON SAID END PORTIONS OF SAID ARMS IN BUTTON-LIKE FASHION WHEREBY SAID TIPS ANCHOR SAID BLOWER MEMBER ON SAID ARMS, SAID ARMS INCLUDING THE RADIALLY EXTENDING END PORTIONS AND TIPS PROVIDING THE SOLE MEANS FOR SUPPORTING AND ROTATING SAID BLOWER MEMBER IN COAXIAL ALIGNMENT WITH SAID SHAFT.
Claim 2
Dependent Claim
127 words
A CENTRIFUGAL BLOWER ASSEMBLY COMPRISING A SUPPORT AND A FLEXIBLE ANNULAR BLOWER MEMBER OF POROUS MATERIAL SUPPORTED THEREON, SAID SUPPORT COMPRISING A HUB ADAPTED TO BE MOUNTED ON A DRIVE SHAFT AND A PLURALITY OF SPACED ARMS CONNECTED TO SAID HUB AND PARALLEL TO AND SPACED EQUAL DISTANCES FROM SAID SHAFT, SAID ARMS HAVING RADIALLY EXTENDING END PORTIONS TERMINATING IN DISC-SHAPED TIPS, SAID BLOWER MEMBER HAVING A PLURALITY OF SLOTS THEREIN ADAPTED TO PASS OVER AND TO BE REMOVABLY RECEIVED ON SAID END PORTIONS OF SAID ARMS IN BUTTON-LIKE FASHION WHEREBY SAID TIPS ANCHOR SAID BLOWER MEMBER ON SAID ARMS, SAID ARMS INCLUDING THE RADIALLY EXTENDING END PORTIONS AND TIPS PROVIDING THE SOLE MEANS FOR SUPPORTING AND ROTATING SAID BLOWER MEMBER IN COAXIAL ALIGNMENT WITH SAID SHAFT.
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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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |