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US3184153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor construction
Assignee: Joy Manufacturing Co
•
Filing: 1962-01-18
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Granted: 1965-05-18
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Expires: 1982-01-18
Abstract
No abstract record available.
Inventors
- 👤 William A Zech
- 👤 Fred K Kunderman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:22
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A MULTI-STAGE CENTRIFUGAL COMPRESSOR ROTOR COMPRISING: A FIRST IMPELLER DISC; AT LEAST ONE INTERMEDIATE IMPELLER DISC; A FINAL IMPELLER DISC ALL OF SAID DISCS BEING AXIALLY UNSYMMETRICAL COAXIAL WITH EACH OTHER AND AXIALLY SPACED TO FORM A SET OF TANDEM IMPELLER DISCS; COAXIAL CYLINDRICAL JOURNAL MEANS EXTENDING OUTWARDLY FROM SAID FIRST AND SAID FINAL IMPELLER DISCS IN A DIRECTION AWAY FROM SAID INTERMEDIATE DISC RESPECTIVELY TO PROVIDE FOR ROTATION OF SAID DISCS ABOUT A COMMON AXIS; AXIALLY EXTENDING RINGS COAXIAL WITH EACH OTHER ABOUT SAID COMMON AXIS FORMED ON THE SIDES OF SAID FIRST DISC AND SAID FINAL DISC OPPOSITE SAID JOURNAL MEANS; SIMILAR COAXIAL AXIALLY EXTENDING RINGS FORMED ON BOTH SIDES OF SAID INTERMEDIATE DISCS RESPECTIVELY; COAXIAL CYLINDRICAL SPACER MEMBER LOCATED BETWEEN ADJACENT ONES OF SAID DISCS, RESPECTIVELY; SAID SPACER MEMBERS HAVING COAXIAL RING PORTIONS CLOSELY INTERNALLY RECEIVING SAID RINGS, RESPECTIVELY; AND SAID SPACER MEMBERS HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID JOURNAL MEANS.
Claim 2
Dependent Claim
157 words
A MULTI-STAGE CENTRIFUGAL COMPRESSOR ROTOR COMPRISING: A FIRST IMPELLER DISC; AT LEAST ONE INTERMEDIATE IMPELLER DISC; A FINAL IMPELLER DISC ALL OF SAID DISCS BEING AXIALLY UNSYMMETRICAL COAXIAL WITH EACH OTHER AND AXIALLY SPACED TO FORM A SET OF TANDEM IMPELLER DISCS; COAXIAL CYLINDRICAL JOURNAL MEANS EXTENDING OUTWARDLY FROM SAID FIRST AND SAID FINAL IMPELLER DISCS IN A DIRECTION AWAY FROM SAID INTERMEDIATE DISC RESPECTIVELY TO PROVIDE FOR ROTATION OF SAID DISCS ABOUT A COMMON AXIS; AXIALLY EXTENDING RINGS COAXIAL WITH EACH OTHER ABOUT SAID COMMON AXIS FORMED ON THE SIDES OF SAID FIRST DISC AND SAID FINAL DISC OPPOSITE SAID JOURNAL MEANS; SIMILAR COAXIAL AXIALLY EXTENDING RINGS FORMED ON BOTH SIDES OF SAID INTERMEDIATE DISCS RESPECTIVELY; COAXIAL CYLINDRICAL SPACER MEMBER LOCATED BETWEEN ADJACENT ONES OF SAID DISCS, RESPECTIVELY; SAID SPACER MEMBERS HAVING COAXIAL RING PORTIONS CLOSELY INTERNALLY RECEIVING SAID RINGS, RESPECTIVELY; AND SAID SPACER MEMBERS HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID JOURNAL MEANS.
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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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |