Patent US4889577A successfully refreshed from Google Patents.
US4100526A
Expired / Lapsed
US
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Grid resistor
Assignee: Mosebach Manufacturing Co
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Filing: 1977-02-24
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Granted: 1978-07-11
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Expires: 1997-02-24
Abstract
Abstract A frame supported grid resistor having a plurality of resistors of the ribbon type has located between adjacent ribbon resistors, strips of conductive material containing nonconductive bushings which engage and separate the adjacent ribbon resistors.
Inventors
- 👤 Victor V. Kirilloff
- 👤 William A. Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:54
CPC Classifications
H; H01; H01C; H01C3/00; H01C3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A resistor structure forming a grid in a frame having a plurality of longitudinal fan folded electrically conductive resistive ribbons forming tips and supported within the frame wherein the improvement comprises: (a) a support strip member of electrically conductive material and positioned longitudinally between two adjacent resistive ribbons, the strip member having a plurality of holes with bushings of electrical insulation material inserted in the holes, the ends of the strip member are free and are spaced from the frame; (b) studs selectively joined to the tips of the resistive ribbons and alternating between tips of the resistive ribbon on one side of the support strip member and tips of the resistive ribbon on the other side of the support strip member, the studs each engage one of the bushings and only one tip with a stud engages each bushing and the tips with the studs abut the bushings engaged, tips without studs are spaced from the support strip member and the tips without studs which are transversely aligned with a bushing abut that bushing; and (c) a bumper member of electrical insulation material joined on a top edge of the support.
Claim 2
Dependent Claim
192 words
A resistor structure forming a grid in a frame having a plurality of longitudinal fan folded electrically conductive resistive ribbons forming tips and supported within the frame wherein the improvement comprises: (a) a support strip member of electrically conductive material and positioned longitudinally between two adjacent resistive ribbons, the strip member having a plurality of holes with bushings of electrical insulation material inserted in the holes, the ends of the strip member are free and are spaced from the frame; (b) studs selectively joined to the tips of the resistive ribbons and alternating between tips of the resistive ribbon on one side of the support strip member and tips of the resistive ribbon on the other side of the support strip member, the studs each engage one of the bushings and only one tip with a stud engages each bushing and the tips with the studs abut the bushings engaged, tips without studs are spaced from the support strip member and the tips without studs which are transversely aligned with a bushing abut that bushing; and (c) a bumper member of electrical insulation material joined on a top edge of the support.
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) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |