US3276742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical shaft kaplan water turbines
Assignee: Hitachi Ltd
•
Filing: 1963-11-05
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Granted: 1966-10-04
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Expires: 1983-11-05
Abstract
No abstract record available.
Inventors
- 👤 Yokoi Nobuyasu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:41
CPC Classifications
F; F03; F03B; F03B11/00; F03B11/06; F03B11/063; F03B11/066; F03B11/02; F03B11/025; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A VERTICAL KAPLAN WATER TURBINE COUPLED WITH A GENERATOR COMPRISING: A TURBINE RUNNER, A SHAFT INTERCONNECTING THE RUNNER WITH THE ROTOR OF SAID GENERATOR, A THRUST COLLAR AND A THRUST RUNNER SECURED THERETO, A KEY CONNECTING SAID THRUST COLLAR TO SAID SHAFT, A PLURALITY OF THRUST PADS SUPPORTING SAID THRUST RUNNER FOR RECEIVING THE THRUST GENERATED ON SAID SHAFT, A HEAD COVER OF SAID WATER TURBINE INCLUDING WATER INTAKE GUIDE PLATES, AN ANNULAR UPPER COVER PLATE, AND A PERIPHERAL SIDE PLATE SURROUNDING SAID SHAFT, A THRUST BEARING CASING FOR CONTAINING OIL INCLUDING A BOTTOM PLATE INTEGRAL WITH SAID SIDE PLATE, SAID THRUST PADS ON SAID BOTTOM PLATE OF SAID CASING, ADJUSTING BOLT MEANS ADJUSTABLY SUPPORTING EACH OF SAID THRUST RUNNER AND SAID THRUST PADS BEING DISPOSED BELOW THE UPPER COVER PLATE OF SAID HEAD COVER.
Claim 2
Dependent Claim
135 words
A VERTICAL KAPLAN WATER TURBINE COUPLED WITH A GENERATOR COMPRISING: A TURBINE RUNNER, A SHAFT INTERCONNECTING THE RUNNER WITH THE ROTOR OF SAID GENERATOR, A THRUST COLLAR AND A THRUST RUNNER SECURED THERETO, A KEY CONNECTING SAID THRUST COLLAR TO SAID SHAFT, A PLURALITY OF THRUST PADS SUPPORTING SAID THRUST RUNNER FOR RECEIVING THE THRUST GENERATED ON SAID SHAFT, A HEAD COVER OF SAID WATER TURBINE INCLUDING WATER INTAKE GUIDE PLATES, AN ANNULAR UPPER COVER PLATE, AND A PERIPHERAL SIDE PLATE SURROUNDING SAID SHAFT, A THRUST BEARING CASING FOR CONTAINING OIL INCLUDING A BOTTOM PLATE INTEGRAL WITH SAID SIDE PLATE, SAID THRUST PADS ON SAID BOTTOM PLATE OF SAID CASING, ADJUSTING BOLT MEANS ADJUSTABLY SUPPORTING EACH OF SAID THRUST RUNNER AND SAID THRUST PADS BEING DISPOSED BELOW THE UPPER COVER PLATE OF SAID HEAD COVER.
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |