US3571635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine-generator stator frames
Assignee: General Electric Co
•
Filing: 1969-04-07
•
Granted: 1971-03-23
•
Expires: 1989-04-07
Abstract
Abstract A dynamoelectric machine frame in which end sections of greater diameter are telescoped over the central section wrapper plate and sealed thereto to form a gastight frame. The gas-cooling system ducting is disposed internally in both the central section and end sections.
Inventors
- 👤 Russell J Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:50
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
73 words
A dynamoelectric machine of the type having a plurality of circumferential section plates surrounded at their periphery by a generally cylindrical wrapper plate with said section plates and said wrapper plate cooperating to form a portion of the cooling system for the cooling gas, with the improvement comprising: fan means positioned between said inlet gas flow area and said outlet flow area so as to motivate the cooling gas through said cooling system.
Claim 2
Dependent Claim
73 words
A dynamoelectric machine of the type having a plurality of circumferential section plates surrounded at their periphery by a generally cylindrical wrapper plate with said section plates and said wrapper plate cooperating to form a portion of the cooling system for the cooling gas, with the improvement comprising: fan means positioned between said inlet gas flow area and said outlet flow area so as to motivate the cooling gas through said cooling system.
Claim 3
Dependent Claim
49 words
A dynamoelectric machine according to claim 1 further including circumferential sealing means positioned at the circumferential joint between said wrapper plate and said first portion of the annular end section arranged to provide a gastight machine after said annular end section has been slidably positioned to its operative configuration.
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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |