Patent US4933373A successfully refreshed from Google Patents.
Patent US3106381A successfully refreshed from Google Patents.
US3106381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbomachine housing
Assignee: Eberspaecher Climate Control Systems GmbH and Co KG
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Filing: 1961-04-26
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Granted: 1963-10-08
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Expires: 1981-04-26
Abstract
No abstract record available.
Inventors
- 👤 Leins Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:50
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/24; F01D25/26; F01D25/08; F01D25/14; F01D25/16; F01D25/162; F05; F05D; F05D2220/00; F05D2220/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
IN A RADIAL TURBINE OPERATED BY A HIGH-TEMPERATURE OPERATING MEDIUM, A ROTOR HAVING A HUB PORTION AND TURBINE BLADES EXTENDING THEREFROM AND HAVING EDGE PORTIONS PLACED IN A PLANE EXTENDING RADIALLY FROM SAID HUB PORTION, SAID BLADES FORMING BUCKETS WHICH ARE OPEN AT SAID EDGE PORTIONS, A TURBINE CASING, SAID CASING INCLUDING A CAST ANNULAR WALL MEMBER PLACED COAXIALLY OF SAID ROTOR AND HAVING AN INNER MARGINAL PORTION ADJACENT TO SAID HUB PORTION, SAID ANNULAR MEMBER HAVING A RADIAL SURFACE IN CLOSE VICINITY OF SAID EDGE PORTIONS OF SAID BLADES FOR SUBSTANTIALLY PREVENTING FLOW OF OPERATING MEDIUM FROM SAID BUCKETS BETWEEN SAID EDGE PORTIONS, A SHAFT COAXIALLY EXTENDING FROM SAID HUB PORTION OUTSIDE OF SAID CASING, A BEARING FOR SAID SHAFT, A CAST HOUSING FOR SAID BEARING, AND AN ANNULAR SHEET METAL ELEMENT INTERPOSED BETWEEN SAID INNER PORTION OF SAID CAST ANNULAR MEMBER AND SAID BEARING HOUSING, SAID ANNULAR SHEET METAL ELEMENT HAVING AN OUTSIDE EXPOSED TO THE AMBIENT AIR AND HAVING AN OUTER ANNULAR EDGE CAST INTO SAID ANNULAR MEMBER AND HAVING AN INNER ANNULAR EDGE CAST INTO SAID BEARING HOUSING TO REDUCE HEAT CONDUCTION FROM SAID ANNULAR MEMBER TO SAID BEARING HOUSING.
Claim 2
Dependent Claim
194 words
IN A RADIAL TURBINE OPERATED BY A HIGH-TEMPERATURE OPERATING MEDIUM, A ROTOR HAVING A HUB PORTION AND TURBINE BLADES EXTENDING THEREFROM AND HAVING EDGE PORTIONS PLACED IN A PLANE EXTENDING RADIALLY FROM SAID HUB PORTION, SAID BLADES FORMING BUCKETS WHICH ARE OPEN AT SAID EDGE PORTIONS, A TURBINE CASING, SAID CASING INCLUDING A CAST ANNULAR WALL MEMBER PLACED COAXIALLY OF SAID ROTOR AND HAVING AN INNER MARGINAL PORTION ADJACENT TO SAID HUB PORTION, SAID ANNULAR MEMBER HAVING A RADIAL SURFACE IN CLOSE VICINITY OF SAID EDGE PORTIONS OF SAID BLADES FOR SUBSTANTIALLY PREVENTING FLOW OF OPERATING MEDIUM FROM SAID BUCKETS BETWEEN SAID EDGE PORTIONS, A SHAFT COAXIALLY EXTENDING FROM SAID HUB PORTION OUTSIDE OF SAID CASING, A BEARING FOR SAID SHAFT, A CAST HOUSING FOR SAID BEARING, AND AN ANNULAR SHEET METAL ELEMENT INTERPOSED BETWEEN SAID INNER PORTION OF SAID CAST ANNULAR MEMBER AND SAID BEARING HOUSING, SAID ANNULAR SHEET METAL ELEMENT HAVING AN OUTSIDE EXPOSED TO THE AMBIENT AIR AND HAVING AN OUTER ANNULAR EDGE CAST INTO SAID ANNULAR MEMBER AND HAVING AN INNER ANNULAR EDGE CAST INTO SAID BEARING HOUSING TO REDUCE HEAT CONDUCTION FROM SAID ANNULAR MEMBER TO SAID BEARING HOUSING.
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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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |