US3237137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encapsulated toroidal inductor and the like
Assignee: Sangamo Electric Co
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Filing: 1963-07-23
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Granted: 1966-02-22
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Expires: 1983-07-23
Abstract
No abstract record available.
Inventors
- 👤 Albert D Flaminio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:47
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/005; H01F27/00; H01F27/02; H01F27/022; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49073; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992; Y10T29/49938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A TOROIDAL INDUCTANCE UNIT, THE COMBINATION OF A TOROIDAL CORE STRUCTURE OF A MAGNETIC MATERIAL HAVING A CENTRAL OPENING THERETHROUGH, A WINDING WOUND SPIRALLY AROUND SAID TOROIDAL CORE STRUCTURE AND PASSING THROUGH SAID CENTRAL OPENING, SAID CORE AND WINDING CONSTITUTING A CORE-WINDING ASSEMBLY, A GENERALLY CYLINDRICAL ENVELOPING BOOT OF THIN, HIGLY ELASTIC MATERIAL COMPRISING AN INTERMEDIATE PORTION DISPOSED IN SAID CENTRAL OPENING, SAID BOOT COMPRISING UPPER AND LOWER END PORTIONS EXTENDING FROM SAID INTERMEDIATE PORTION, SAID UPPER END PORTION ENVELOPING THE UPPER END OF SAID CORE-WINDING ASSEMBLY AND EXTENDING DOWN OVER AT LEAST A SUBSTANTIAL PORTION OF THE OUTER SURFACE THEREOF INCLUDING A PORTION OF SAID
Claim 2
Dependent Claim
107 words
IN A TOROIDAL INDUCTANCE UNIT, THE COMBINATION OF A TOROIDAL CORE STRUCTURE OF A MAGNETIC MATERIAL HAVING A CENTRAL OPENING THERETHROUGH, A WINDING WOUND SPIRALLY AROUND SAID TOROIDAL CORE STRUCTURE AND PASSING THROUGH SAID CENTRAL OPENING, SAID CORE AND WINDING CONSTITUTING A CORE-WINDING ASSEMBLY, A GENERALLY CYLINDRICAL ENVELOPING BOOT OF THIN, HIGLY ELASTIC MATERIAL COMPRISING AN INTERMEDIATE PORTION DISPOSED IN SAID CENTRAL OPENING, SAID BOOT COMPRISING UPPER AND LOWER END PORTIONS EXTENDING FROM SAID INTERMEDIATE PORTION, SAID UPPER END PORTION ENVELOPING THE UPPER END OF SAID CORE-WINDING ASSEMBLY AND EXTENDING DOWN OVER AT LEAST A SUBSTANTIAL PORTION OF THE OUTER SURFACE THEREOF INCLUDING A PORTION OF SAID
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |