US4725806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact elements for miniature inductor
Assignee: Standex Electronics Inc
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Filing: 1987-05-21
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Granted: 1988-02-16
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Expires: 2007-05-21
Abstract
Abstract A miniature inductor having strips of printed circuitboard material forming contact elements for surface mounting the inductor to a printed circuitboard.
Inventors
- 👤 Edward R. Chamberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:46
CPC Classifications
H; H01; H01F; H01F17/00; H01F17/04; H01F17/06; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3431; H05K3/3442; H01F27/00; H01F27/28; H01F27/29; H01F27/292; H05K2201/00; H05K2201/09; H05K2201/09009; H05K2201/09045; H05K2201/10; H05K2201/10431; H05K2201/10568; H05K2201/10613; H05K2201/10621; H05K2201/10636; Y; Y02; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
61 words
In an inductor having a core having a base surface, and a winding on said core having ends adjacent said base surface, an adhesive on said core mounting contact elements at each end of said core, comprising: an epoxy-based board with fiberglass or other fabric spacer forming a base bonded to said adhesive, and a copper strip bonded to said spacer.
Claim 2
Dependent Claim
61 words
In an inductor having a core having a base surface, and a winding on said core having ends adjacent said base surface, an adhesive on said core mounting contact elements at each end of said core, comprising: an epoxy-based board with fiberglass or other fabric spacer forming a base bonded to said adhesive, and a copper strip bonded to said spacer.
Claim 3
Dependent Claim
17 words
An inductor as in claim 1 and a tin plate on the surface of said copper strip.
Claim 4
Dependent Claim
20 words
An inductor as in claim 1 in which the dimension of said core is 0.100 inch to 0.250 inch long.
Claim 5
Dependent Claim
36 words
An inductor as in claim 1 in which the dimension of said core is 0.100 inch to 0.250 inch, the base is 0.007 inch to 0.030 inch thick and the copper is about 0.003 inch thick.
Claim 6
Dependent Claim
24 words
An inductor as in claim 4 in which said contact elements are about 0.020 inch wide and are spaced apart by about 0.060 inch.
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) | 1991-02-15 | 1991-08-17 | 1992-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-15 | 1995-08-17 | 1996-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-15 | 1999-08-17 | 2000-02-16 | $7700.00 | Window Closed / Lapsed |