US3226083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible pump turbines
Assignee: English Electric Co Ltd
•
Filing: 1963-10-29
•
Granted: 1965-12-28
•
Expires: 1983-10-29
Abstract
No abstract record available.
Inventors
- 👤 Braikevitch Michael
- 👤 Warnock James Gavin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:47
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/10; F03B15/00; F03B15/005; F03B3/103; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y10; Y10S; Y10S415/00; Y10S415/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A REVERSIBLE PUMP TURBINE COMPRISING A RUNNER HAVING A HUB AND VANES MOUNTED THEREON AND DEFINING WORKING FLUID PASSAGES, STATOR STRUCTURE CO-OPERATING WITH SAID RUNNER AND INCLUDING AN INLET/DELIVERY CASING, A DRAFT TUBE, AND PASSAGE MEANS BETWEEN SAID INLET/DELIVERY CASING AND SAID WORKING FLUID PASSAGES, SAID RUNNER AND STATOR STRUCTURE OPERATING AS A TURBINE WHEN THE RUNNER IS DRIVEN IN ONE DIRECTION OF ROTATION BY THE FLOW OF WORKING FLUID THROUGH THE WORKING FLUID PASSAGE FROM THE INLET/DELIVERY CASING TO THE DRAFT TUBE, AND OPERATING AS A PUMP WHEN ROTATING OF SAID RUNNER IN THE OTHER DIRECTION CAUSES THE FLOW OF WORKING FLUID THROUGH THE WORKING FLUID PASSAGES FROM THE DRAFT TUBE TO THE INLET-DELIVERY CASING, BLADING MEANS ON SAID RUNNER, AND MEANS SELECTIVELY TO SUPPLY WORKING FLUIDS TO SAID BLADING MEANS TO DRIVE SAID RUNNER IN SAID OTHER DIRECTION.
Claim 2
Dependent Claim
140 words
A REVERSIBLE PUMP TURBINE COMPRISING A RUNNER HAVING A HUB AND VANES MOUNTED THEREON AND DEFINING WORKING FLUID PASSAGES, STATOR STRUCTURE CO-OPERATING WITH SAID RUNNER AND INCLUDING AN INLET/DELIVERY CASING, A DRAFT TUBE, AND PASSAGE MEANS BETWEEN SAID INLET/DELIVERY CASING AND SAID WORKING FLUID PASSAGES, SAID RUNNER AND STATOR STRUCTURE OPERATING AS A TURBINE WHEN THE RUNNER IS DRIVEN IN ONE DIRECTION OF ROTATION BY THE FLOW OF WORKING FLUID THROUGH THE WORKING FLUID PASSAGE FROM THE INLET/DELIVERY CASING TO THE DRAFT TUBE, AND OPERATING AS A PUMP WHEN ROTATING OF SAID RUNNER IN THE OTHER DIRECTION CAUSES THE FLOW OF WORKING FLUID THROUGH THE WORKING FLUID PASSAGES FROM THE DRAFT TUBE TO THE INLET-DELIVERY CASING, BLADING MEANS ON SAID RUNNER, AND MEANS SELECTIVELY TO SUPPLY WORKING FLUIDS TO SAID BLADING MEANS TO DRIVE SAID RUNNER IN SAID OTHER DIRECTION.
References Cited (Backward Citations)
FR389318A
Cited
DE476207C
Cited
DE466165C
Cited
US2131611A
Cited
US2671635A
Cited
DE1064439B
Cited
US2972469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |