US3229897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilator
Assignee: Individual
•
Filing: 1964-01-10
•
Granted: 1966-01-18
•
Expires: 1984-01-10
Abstract
No abstract record available.
Inventors
- 👤 Papst Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:08
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/05; F04D29/056; F04D25/00; F04D25/02; F04D25/06; F04D25/0606; F04D25/0613; F04D29/40; F04D29/52; F04D29/54; F04D29/541; F04D29/545; H; H02; H02K; H02K7/00; H02K7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A VENTILATOR COMPRISING, IN COMBINATION, A HOUSING HAVING A PLURALITY OF SUBSTANTIALLY RADIALLY EXENDING SPOKES AND A CENTRAL PORTION SUPPORTED ON SAID SPOKES; A TUBULAR MEMBER HAVING A FLANGE AT ONE END ABUTTING AGAINST SAID CENTRAL PORTION OF SAID HOUSING; RELEASABLE CONNECTING MEANS CONNECTING SAID FLANGE TO SAID CENTRAL PORTION OF SAID HOUSING; A COVER EXTENDING TRANSVERSELY OVER SAID ONE END OF SAID TUBULAR MEMBER AND PARTLY OVER SAID FLANGE THEREOF AND BEING CLAMPED BY SAID CONNECTING MEANS BETWEEN SAID FLANGE AND SAID CENTRAL PORTION OF SAID HOUSING; AXIALLY SPACED BEARING MANS SUPPORTED IN SAID TUBULAR MEMBER; STATOR MEANS FIXED TO THE OUTER SURFACE OF SAID TUBULAR MEMBER AND PROJECTING RADIALLY THEREFROM; A SHAFT TURNABLY MOUNTED IN SAID BEARING MEANS AND PROJECTING WITH ONE END THEREOF BEYOND THE OTHER END OF SAID TUBULAR MEMBER, THE OTHER END OF SAID SHAFT ENGAGING SAID COVER SO THAT THE LATTER FORMS A THRUST BEARING FOR SAID SHAFT; AND ROTOR MEANS SURROUNDING SAID STATOR
Claim 2
Dependent Claim
160 words
A VENTILATOR COMPRISING, IN COMBINATION, A HOUSING HAVING A PLURALITY OF SUBSTANTIALLY RADIALLY EXENDING SPOKES AND A CENTRAL PORTION SUPPORTED ON SAID SPOKES; A TUBULAR MEMBER HAVING A FLANGE AT ONE END ABUTTING AGAINST SAID CENTRAL PORTION OF SAID HOUSING; RELEASABLE CONNECTING MEANS CONNECTING SAID FLANGE TO SAID CENTRAL PORTION OF SAID HOUSING; A COVER EXTENDING TRANSVERSELY OVER SAID ONE END OF SAID TUBULAR MEMBER AND PARTLY OVER SAID FLANGE THEREOF AND BEING CLAMPED BY SAID CONNECTING MEANS BETWEEN SAID FLANGE AND SAID CENTRAL PORTION OF SAID HOUSING; AXIALLY SPACED BEARING MANS SUPPORTED IN SAID TUBULAR MEMBER; STATOR MEANS FIXED TO THE OUTER SURFACE OF SAID TUBULAR MEMBER AND PROJECTING RADIALLY THEREFROM; A SHAFT TURNABLY MOUNTED IN SAID BEARING MEANS AND PROJECTING WITH ONE END THEREOF BEYOND THE OTHER END OF SAID TUBULAR MEMBER, THE OTHER END OF SAID SHAFT ENGAGING SAID COVER SO THAT THE LATTER FORMS A THRUST BEARING FOR SAID SHAFT; AND ROTOR MEANS SURROUNDING SAID STATOR
References Cited (Backward Citations)
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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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |