Patent US4661791A successfully refreshed from Google Patents.
US4661791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reed switch with high insulation
Assignee: Agilent Technologies Inc
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Filing: 1985-05-08
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Granted: 1987-04-28
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Expires: 2005-05-08
Abstract
Abstract A reed switch with high insulation for a very low current measurement system is provided. The reed switch is embodied by coating over its glass-made surface with fluoroplastics materials in order to reduce the leakage current on the surface.
Inventors
- 👤 Tomio Wakasugi
- 👤 Akinori Maeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:20
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/64; H01H1/66
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
48 words
A reed switch with high insulation comprising: a pair of conducting leads for selectively making contact; and an enclosure for enclosing said pair of leads, an outer surface of said enclosure being coated with a fluoroplastic, said fluoroplastic providing high electrical insulation between said pair of conducting leads.
Claim 2
Dependent Claim
48 words
A reed switch with high insulation comprising: a pair of conducting leads for selectively making contact; and an enclosure for enclosing said pair of leads, an outer surface of said enclosure being coated with a fluoroplastic, said fluoroplastic providing high electrical insulation between said pair of conducting leads.
Claim 3
Dependent Claim
19 words
The reed switch with high insulation as set forth in claim 1, wherein said enclosure is made of glass.
References Cited (Backward Citations)
US684094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-27 | 1990-10-27 | 1991-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-27 | 1994-10-27 | 1995-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-27 | 1998-10-27 | 1999-04-28 | $7700.00 | Window Closed / Lapsed |