US3108955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow rotors and centrifuges
Assignee: The General Electric Company PLC
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Filing: 1947-02-26
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Granted: 1963-10-29
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Expires: 1967-02-26
Abstract
No abstract record available.
Inventors
- 👤 Boyland Donald Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:55
CPC Classifications
B; B04; B04B; B04B7/00; B04B7/08; Y; Y10; Y10S; Y10S494/00; Y10S494/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A ROTARY HOLLOW METAL BODY MOUNTED FOR ROTATION AT A HIGH SPEED ABOUT AN AXIS, SAID BODY COMPRISING A BOSS CONTAINING SAID AXIS, A PLURALITY OF WEBS FIXED TO AND EXTENDING RADIALLY FROM SAID BOSS, EACH OF SAID WEBS HAVING A RADIAL LENGTH WHICH IS UNIFORM IN A DIRECTION EXTENDING PARALLEL TO SAID AXIS, THE RADIAL LENGTHS OF ALL OF SAID WEBS IN ANY PLANE PERPENDICULAR TO SAID AXIS BEING THE SAME WHEREBY THE OUTER ENDS OF SAID WEBS TERMINATE IN AN IMAGINARY CIRCULAR CYLINDRICAL SURFACE, AND A PLURALITY OF SPANS FIXED TO THE OUTER ENDS OF SAID WEBS, THE ENDS OF SAID SPANS BEING JOINED TO FORM A CONTINUOUS WALL ENCIRCULING SAID WEBS, AND EACH OF SAID SPANS, AT EVERY SECTION OF SAID ROTARY BODY DEFINED BY PLANES PERPENDICULAR TO SAID AXIS, HAVING A SHAPE WHICH A SPAN OF THE SAME DIMENSIONS BUT OF FLEXIBLE MATERIAL WOULD ASSUME IF SUBJECTED TO THE CENTRIFUGAL LOADING WHICH IS EXERTED UPON THE SPAN OF THE ROTARY BODY WHEN SAID BODY IS ROTATING ABOUT SAID AXIS.
Claim 2
Dependent Claim
173 words
A ROTARY HOLLOW METAL BODY MOUNTED FOR ROTATION AT A HIGH SPEED ABOUT AN AXIS, SAID BODY COMPRISING A BOSS CONTAINING SAID AXIS, A PLURALITY OF WEBS FIXED TO AND EXTENDING RADIALLY FROM SAID BOSS, EACH OF SAID WEBS HAVING A RADIAL LENGTH WHICH IS UNIFORM IN A DIRECTION EXTENDING PARALLEL TO SAID AXIS, THE RADIAL LENGTHS OF ALL OF SAID WEBS IN ANY PLANE PERPENDICULAR TO SAID AXIS BEING THE SAME WHEREBY THE OUTER ENDS OF SAID WEBS TERMINATE IN AN IMAGINARY CIRCULAR CYLINDRICAL SURFACE, AND A PLURALITY OF SPANS FIXED TO THE OUTER ENDS OF SAID WEBS, THE ENDS OF SAID SPANS BEING JOINED TO FORM A CONTINUOUS WALL ENCIRCULING SAID WEBS, AND EACH OF SAID SPANS, AT EVERY SECTION OF SAID ROTARY BODY DEFINED BY PLANES PERPENDICULAR TO SAID AXIS, HAVING A SHAPE WHICH A SPAN OF THE SAME DIMENSIONS BUT OF FLEXIBLE MATERIAL WOULD ASSUME IF SUBJECTED TO THE CENTRIFUGAL LOADING WHICH IS EXERTED UPON THE SPAN OF THE ROTARY BODY WHEN SAID BODY IS ROTATING ABOUT SAID AXIS.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |