US4658234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistor network
Assignee: Alps Alpine Co Ltd
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Filing: 1985-06-06
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Granted: 1987-04-14
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Expires: 2005-06-06
Abstract
Abstract A resistor network having resistor elements disposed equally spaced apart in parallel relation to each other and one or more insulation substrates to which the resistor elements are rigidly mounted. The substrates and the elements are all enclosed in a resin seal in the form of a belt. The resin seal is provided with one or more holes extending through it for dissipating heat. The holes are rectangular in shape, and are disposed between every two of the resistor elements or in other regular manner.
Inventors
- 👤 Katsumi Takayanagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:13
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; H01C1/034; H01C1/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
In a resistor network having a plurality of resistor elements disposed in parallel spaced apart from each other in a longitudinal row in one plane, an insulation substrate supporting the resistor elements, and a resin sealing member enclosing the resistor elements and substrate. the improvement wherein said resin sealing member is formed as a rectangular body elongated over said longitudinal row parallel to said one plane, and has a plurality of holes equally spaced apart and formed through said body and said substrate normal to said one plane between selected pairs of said resistor elements.
Claim 2
Dependent Claim
95 words
In a resistor network having a plurality of resistor elements disposed in parallel spaced apart from each other in a longitudinal row in one plane, an insulation substrate supporting the resistor elements, and a resin sealing member enclosing the resistor elements and substrate. the improvement wherein said resin sealing member is formed as a rectangular body elongated over said longitudinal row parallel to said one plane, and has a plurality of holes equally spaced apart and formed through said body and said substrate normal to said one plane between selected pairs of said resistor elements.
Claim 3
Dependent Claim
20 words
A resistor network according to claim 1, wherein said holes are disposed between resistor elements producing a large heat loading.
Claim 4
Dependent Claim
27 words
A resistor newtork according to claim 1, wherein said insulation substrate supporting said resistor elements is formed as a single planar sheet extending across said longitudinal row.
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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |