US3683494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monolithic mad
Assignee: TE Connectivity Corp
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Filing: 1970-01-15
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Granted: 1972-08-15
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Expires: 1990-01-15
Abstract
Abstract A method of providing conductive windings on a magnetic core wherein said windings are plated through small apertures in the core and additional windings are plated through a larger aperture.
Inventors
- 👤 William Baird Fritz
- 👤 Neil Harrison Sanders
- 👤 Emerson Marshall Reyner
- 👤 Harry Alvin Fox Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:54
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/02; G11C19/06; H; H03; H03K; H03K19/00; H03K19/02; H03K19/16; H03K19/166; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
A method of manufacturing wired core devices comprising the steps of: forming a multiaperture magnetic core body as by molding or casting of substantially unfired insulating magnetic material to define a geometry including a major aperture and a plurality of closely spaced minor apertures, firing said core body to provide permanent square loop characteristics to the material thereof, plating said body with a first layer of conductive material, minor apertures to define conductive paths extending through said body insulated each from the other only by material therebetween, selectively removing portions of said first layer of conductive material to define a first plurality of turns, covering said body and said first plurAlity of turns with a layer of insulating material, plating said layer of insulating material with a second layer of conductive material, and selectively removing portions of said second layer of conductive material to form a second plurality of turns.
Claim 2
Independent Claim
150 words
A method of manufacturing wired core devices comprising the steps of: forming a multiaperture magnetic core body as by molding or casting of substantially unfired insulating magnetic material to define a geometry including a major aperture and a plurality of closely spaced minor apertures, firing said core body to provide permanent square loop characteristics to the material thereof, plating said body with a first layer of conductive material, minor apertures to define conductive paths extending through said body insulated each from the other only by material therebetween, selectively removing portions of said first layer of conductive material to define a first plurality of turns, covering said body and said first plurAlity of turns with a layer of insulating material, plating said layer of insulating material with a second layer of conductive material, and selectively removing portions of said second layer of conductive material to form a second plurality of turns.
Claim 3
Dependent Claim
22 words
The method of claim 1 including the additional step of selectively removing conductive material to define a drive circuit for said device.
Claim 4
Dependent Claim
30 words
The device of claim 2 including as a further step connecting said various turns to an input, output and drive circuit for operating said device in controlled states of magnetization.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |