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US3241924A
Expired / Lapsed
US
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Devices for carrying out rotary movements under the action of magnetic forces
Assignee: US Philips Corp
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Filing: 1963-05-23
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Granted: 1966-03-22
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Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Karstensen Frithjof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:08
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/12; G01F15/125; C; C30; C30B; C30B13/00; C30B13/32; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1076; Y10T117/1084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
APPARATUS FOR TREATING SEMI-CONDUCTOR MATERIAL COMPRISING: AN ENVELOPE MEMEBER HAVING A FIRST DIAMETER AND A SECOND DIAMETER INTERCONNECTED BY A CONVERGING WALL SECTOIN, A BEARING PIECE, A HOLDER, SAID HOLDER HAVING A CONCENTRIC CAPILLARY TUBE THEREIN AND A TAPERED PORTION FOR FITTING WITHIN SAID CONVERGING WALL PORTION, A SHAFT CONCENTRIC WITH A EXTENDING AXIALLY OF SAID CAPILLARY TUBE, A BALL BEARING HAVING ONE RACE SUPPORTED ON SAID HOLDER AND THE OTHER RACE SUCURED TO SAID SHAFT, MAGNETIC MEANS FOR ROTATING SAID SHAFT, AND MEANS TO SECURE A SEMI-CONDUCTOR ROD ON SAID SHAFT AT ONE END AND A FIXED SUPPORT SECURED TO SAID ENVELOPE AT THE OTHER END OF SAID SEMI-CONDUCTOR ROD; SAID HOLDER DIVIDING SAID ENVELOPE INTO FIRST AND SECOND DISCRETE COMPARTMENTS, ONE OF WHICH CONTAINS SAID SEMI-CONDUCTOR ROD.
Claim 2
Dependent Claim
129 words
APPARATUS FOR TREATING SEMI-CONDUCTOR MATERIAL COMPRISING: AN ENVELOPE MEMEBER HAVING A FIRST DIAMETER AND A SECOND DIAMETER INTERCONNECTED BY A CONVERGING WALL SECTOIN, A BEARING PIECE, A HOLDER, SAID HOLDER HAVING A CONCENTRIC CAPILLARY TUBE THEREIN AND A TAPERED PORTION FOR FITTING WITHIN SAID CONVERGING WALL PORTION, A SHAFT CONCENTRIC WITH A EXTENDING AXIALLY OF SAID CAPILLARY TUBE, A BALL BEARING HAVING ONE RACE SUPPORTED ON SAID HOLDER AND THE OTHER RACE SUCURED TO SAID SHAFT, MAGNETIC MEANS FOR ROTATING SAID SHAFT, AND MEANS TO SECURE A SEMI-CONDUCTOR ROD ON SAID SHAFT AT ONE END AND A FIXED SUPPORT SECURED TO SAID ENVELOPE AT THE OTHER END OF SAID SEMI-CONDUCTOR ROD; SAID HOLDER DIVIDING SAID ENVELOPE INTO FIRST AND SECOND DISCRETE COMPARTMENTS, ONE OF WHICH CONTAINS SAID SEMI-CONDUCTOR ROD.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |