US4453153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bleeder resistor for antenna isolator
Assignee: Zenith Electronics LLC
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Filing: 1982-05-10
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Granted: 1984-06-05
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Expires: 2002-05-10
Abstract
Abstract A bleeder resistor is described for draining charge from capacitances formed in a three element isolator. The isolator includes a dielectric element having conductive coatings thereon to form a capacitance. A bleeder resistor is formed on the dielectric element by screening a thick film resistive composition on the dielectric element so as to create a discharge path between conductive coatings on the dielectric element.
Inventors
- 👤 Raymond G. Capek
- 👤 Elgie Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:55
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/38; H01R24/40; H01R24/42; H01R24/48; H01R2103/00; Y; Y10; Y10S; Y10S439/00; Y10S439/916; Y10S439/931
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
A combined dielectric element and bleeder resistor for an isolator, comprising: an annular dielectric element having an inner circumference, an outer circumference, and a pair of end faces; a first conductive coating on the dielectric element's inner circumference and a second conductive coating on the dielectric element's outer circumference; and a resistor composition formed on the dielectric element such that a narrow strip of resistor composition overlies one of the end faces and extends at both its ends in a direction perpendicular to the one end face so as to contact the conductive coatings on the dielectric element's inner and outer circumferences.
Claim 2
Dependent Claim
102 words
A combined dielectric element and bleeder resistor for an isolator, comprising: an annular dielectric element having an inner circumference, an outer circumference, and a pair of end faces; a first conductive coating on the dielectric element's inner circumference and a second conductive coating on the dielectric element's outer circumference; and a resistor composition formed on the dielectric element such that a narrow strip of resistor composition overlies one of the end faces and extends at both its ends in a direction perpendicular to the one end face so as to contact the conductive coatings on the dielectric element's inner and outer circumferences.
Claim 3
Dependent Claim
38 words
A combined dielectric element and bleeder resistor as set forth in claim 1 wherein said resistor composition comprises a thick film resistor composition screened onto said dielectric element and fixed by baking it at a relatively elevated temperature.
Claim 4
Dependent Claim
31 words
A combined dielectric element and bleeder resistor as set forth in claim 2 wherein said first and second conductive coatings each comprises a layer of silver overlying a layer of nickel.
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) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |