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 15:26
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.
References Cited (Backward Citations)
US854012A
Cited
DE341892C
Cited
US1664492A
Cited
US1798787A
Cited
FR704801A
Cited
US2189252A
Cited
DE767808C
Cited
GB585086A
Cited
US2422763A
Cited
US2662685A
Cited
DE902942C
Cited
US2799445A
Cited
CH341030A
Cited
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 |