US3258195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fans
Assignee: LAING VORTEX Inc
•
Filing: 1963-11-26
•
Granted: 1966-06-28
•
Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Laing Nikolaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:56
CPC Classifications
F; F04; F04D; F04D17/00; F04D17/02; F04D17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A FAN INCLUDING SUPPORT MEANS, A CYLINDRICAL BLADED ROTOR MOUNTED FOR ROTATION ON THE SUPPORT MEANS, GUIDE MEANS EXTENDING THE LENGTH OF THE ROTOR AND CO-OPERATING WITH THE ROTOR ON ROTATION THEREOF TO INDUCE A FLOW OF AIR FROM A SUCTION SIDE OF THE ROTOR THROUGH THE PATH OF THE ROTATING BLADES OF THE ROTOR TO THE INTERIOR OF THE ROTOR AND THENCE AGAIN THROUGH THE PATH OF THE ROTATING BLADES TO A PRESSURE SIDE OF THE ROTOR SAID GUIDE MEANS INCLUDING AN ADJUSTABLE PORTION WHICH EXTENDS WITH UNIFORM CROSS-SECTION OVER THE LENGTH OF THE ROTOR AT THE PRESSURE SIDE THEREOF AND WHICH IS MOUNTED IN ARTICULATED MANNER WITH RESPECT TO THE SUPPORT MEANS FOR GENERALLY PIVOTAL MOVEMENT ABOUT AN AXIS PARALLEL TO THE ROTOR AXIS, AIR LEAVING THE ROTOR IN OPERATION FLOWING AGAINST AT LEAST ONE SIDE OF SAID ADJUSTABLE GUIDE PORTION AND HAS ITS OUTFLOW DIRECTION SUBSTANTIALLY DETERMINED BY THE SETTING THEREOF.
Claim 2
Dependent Claim
154 words
A FAN INCLUDING SUPPORT MEANS, A CYLINDRICAL BLADED ROTOR MOUNTED FOR ROTATION ON THE SUPPORT MEANS, GUIDE MEANS EXTENDING THE LENGTH OF THE ROTOR AND CO-OPERATING WITH THE ROTOR ON ROTATION THEREOF TO INDUCE A FLOW OF AIR FROM A SUCTION SIDE OF THE ROTOR THROUGH THE PATH OF THE ROTATING BLADES OF THE ROTOR TO THE INTERIOR OF THE ROTOR AND THENCE AGAIN THROUGH THE PATH OF THE ROTATING BLADES TO A PRESSURE SIDE OF THE ROTOR SAID GUIDE MEANS INCLUDING AN ADJUSTABLE PORTION WHICH EXTENDS WITH UNIFORM CROSS-SECTION OVER THE LENGTH OF THE ROTOR AT THE PRESSURE SIDE THEREOF AND WHICH IS MOUNTED IN ARTICULATED MANNER WITH RESPECT TO THE SUPPORT MEANS FOR GENERALLY PIVOTAL MOVEMENT ABOUT AN AXIS PARALLEL TO THE ROTOR AXIS, AIR LEAVING THE ROTOR IN OPERATION FLOWING AGAINST AT LEAST ONE SIDE OF SAID ADJUSTABLE GUIDE PORTION AND HAS ITS OUTFLOW DIRECTION SUBSTANTIALLY DETERMINED BY THE SETTING THEREOF.
References Cited (Backward Citations)
US1920952A
Cited
US2212050A
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US2282015A
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US2658700A
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US2525853A
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US2768782A
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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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |