Patent US3320747A successfully refreshed from Google Patents.
US3320747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrokinetic drive
Assignee: Borg Warner Corp
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Filing: 1965-09-10
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Granted: 1967-05-23
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Expires: 1985-09-10
Abstract
No abstract record available.
Inventors
- 👤 Denes Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:14
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; F16H41/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A HYDRODYNAMIC DEVICE, COMPRISING: A FIXED HOUSING CARRYING A VANED STATOR ELEMENT, ROTATABLE BLADED PUMP AND TURBINE ELEMENTS COOPERATING WITH SAID HOUSING AND STATOR ELEMENT TO DEFINE A TOROIDAL CHAMBER WITH THE VANES AND BLADES DISPOSED THEREIN, SAID PUMP ELEMENT BEING EFFECTIVE TO PROMOTE FLUID FLOW THEREIN, HAVING BOTH A CIRCULATORY MOTION ABOUT THE TOROIDAL AXIS AND A VORTICAL MOTION ABOUT THE PATH OF THE CIRCULATORY FLOW, SAID PUMP AND TURBINE BLADES LYING IN THE RADIALLY OUTWARD VORTICAL FLOW AND THE STATOR VANES LYING IN THE RADIALLY INWARD VORTICAL FLOW, THE HOUSING AND STATOR VANES COOPERATING TO PROVIDE RESTRICTION TO THE VORTICAL FLOW WHICH IS GREATER THAN IN ANY OTHER PORTION OF SAID CHAMBER, AND AT LEAST 45% OF THE MERIDIONAL VORTICAL FLOW IS OBSTRUCTED AT SAID RESTRICTION.
Claim 2
Dependent Claim
128 words
A HYDRODYNAMIC DEVICE, COMPRISING: A FIXED HOUSING CARRYING A VANED STATOR ELEMENT, ROTATABLE BLADED PUMP AND TURBINE ELEMENTS COOPERATING WITH SAID HOUSING AND STATOR ELEMENT TO DEFINE A TOROIDAL CHAMBER WITH THE VANES AND BLADES DISPOSED THEREIN, SAID PUMP ELEMENT BEING EFFECTIVE TO PROMOTE FLUID FLOW THEREIN, HAVING BOTH A CIRCULATORY MOTION ABOUT THE TOROIDAL AXIS AND A VORTICAL MOTION ABOUT THE PATH OF THE CIRCULATORY FLOW, SAID PUMP AND TURBINE BLADES LYING IN THE RADIALLY OUTWARD VORTICAL FLOW AND THE STATOR VANES LYING IN THE RADIALLY INWARD VORTICAL FLOW, THE HOUSING AND STATOR VANES COOPERATING TO PROVIDE RESTRICTION TO THE VORTICAL FLOW WHICH IS GREATER THAN IN ANY OTHER PORTION OF SAID CHAMBER, AND AT LEAST 45% OF THE MERIDIONAL VORTICAL FLOW IS OBSTRUCTED AT SAID RESTRICTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |