US3585553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microminiature leadless inductance element
Assignee: United States Department of the Army
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Filing: 1970-04-16
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Granted: 1971-06-15
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Expires: 1990-04-16
Abstract
Abstract A leadless inductance element. The element comprises a nonconductive core adapted to receive a wire winding and having first and second flanges located at the terminal portions of the core to confine the wire winding to the core. The end face of each of the flanges is flattened and an electrically conductive coating is applied to provide electrical contact with the substrate. A groove is located in each of the flanges and is adapted to receive the terminal portions of the wire winding. Finally an electrically conductive path connects the terminal portions of the wire winding with the flattened electrical contacts at the two flanges.
Inventors
- 👤 William L Muckelroy
- 👤 Marshall M Algor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:08
CPC Classifications
H; H01; H01F; H01F37/00; H01F5/00; H01F5/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
92 words
A leadless inductance element comprising: a. a nonconductive core having a wire winding thereon; b. first and second flanges located at the terminal portions of said core to confine said wire winding to said core; c. an electrically conductive coating on the end face of each of said flanges for providing electrical contacts with a substrate; d. a groove located in each of said flanges for receiving the terminal portions of said wire winding; and e. an electrically conductive path between the terminal portions of said wire winding and said electrical contacts.
Claim 2
Dependent Claim
92 words
A leadless inductance element comprising: a. a nonconductive core having a wire winding thereon; b. first and second flanges located at the terminal portions of said core to confine said wire winding to said core; c. an electrically conductive coating on the end face of each of said flanges for providing electrical contacts with a substrate; d. a groove located in each of said flanges for receiving the terminal portions of said wire winding; and e. an electrically conductive path between the terminal portions of said wire winding and said electrical contacts.
Claim 3
Dependent Claim
19 words
The device of claim 1 wherein each of said flanges comprises first and second legs separated by said groove.
Claim 4
Dependent Claim
27 words
The device of claim 1 wherein the ends of said wire winding are stripped of insulation to provide electrical contact between said winding and said conductive coating.
Claim 5
Dependent Claim
18 words
The device of claim 3 further comprising means to secure the ends of said winding within said grooves.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |