US3218029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine housing for turbochargers
Assignee: Schwitzer Corp
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Filing: 1964-04-20
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Granted: 1965-11-16
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Jr William E Woollenweber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:42
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN EXHAUST GAS DRIVEN TURBINE ASSEMBLY COMPRISING A HOUSING HAVING FOUR INLET APERTURES, A TURBINE WHEEL MOUNTED FOR ROTATION WITHIN THE HOUSING, SAID HOUSING HAVING TWO PARALLEL ARCUATE CAVITIES ENCIRCLING SAID WHEEL PERIPHERY AND OPEN THERETO, SAID CAVITIES BEING DIVIDED IN THE PLANE OF THE TURBINE WHEEL TO PROVIDE FOUR SEPARATED VOLUTE PASSAGES EACH OPENING TO THE PERIPHERY OF SAID TURBINE WHEEL, FOUR CONVERGENT PASSAGES IN SAID HOUSING EXTENDING BETWEEN AND JOINING SEPARATE ONES OF SAID INLET APERTURES AND VOLUTE PASSAGES, THE AXES OF TWO OF SAID CONVERGENT PASSAGES BEING SUBSTANTIALLY PARALLEL AND EXTENDING TANGENTIALLY FROM ONE SIDE OF SAID TURBINE WHEEL, THE AXES OF THE OTHER TWO OF SAID CONVERGENT PASSAGES BEING SUBSTANTIALLY PARALLEL AND EXTENDING TANGENTIALLY FROM THE OPPOSITE SIDE OF SAID TURBINE WHEEL.
Claim 2
Dependent Claim
126 words
AN EXHAUST GAS DRIVEN TURBINE ASSEMBLY COMPRISING A HOUSING HAVING FOUR INLET APERTURES, A TURBINE WHEEL MOUNTED FOR ROTATION WITHIN THE HOUSING, SAID HOUSING HAVING TWO PARALLEL ARCUATE CAVITIES ENCIRCLING SAID WHEEL PERIPHERY AND OPEN THERETO, SAID CAVITIES BEING DIVIDED IN THE PLANE OF THE TURBINE WHEEL TO PROVIDE FOUR SEPARATED VOLUTE PASSAGES EACH OPENING TO THE PERIPHERY OF SAID TURBINE WHEEL, FOUR CONVERGENT PASSAGES IN SAID HOUSING EXTENDING BETWEEN AND JOINING SEPARATE ONES OF SAID INLET APERTURES AND VOLUTE PASSAGES, THE AXES OF TWO OF SAID CONVERGENT PASSAGES BEING SUBSTANTIALLY PARALLEL AND EXTENDING TANGENTIALLY FROM ONE SIDE OF SAID TURBINE WHEEL, THE AXES OF THE OTHER TWO OF SAID CONVERGENT PASSAGES BEING SUBSTANTIALLY PARALLEL AND EXTENDING TANGENTIALLY FROM THE OPPOSITE SIDE OF SAID TURBINE WHEEL.
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |