US4498727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric connecting means
Assignee: US Philips Corp
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Filing: 1981-03-06
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Granted: 1985-02-12
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Expires: 2001-03-06
Abstract
Abstract Electric connecting means, such as connectors having a contact element which is coated with a considerably thinner (0.1-2 μm) noble metal layer than is customary and which is coated with a paste-like mixture comprising hard, electrically conducting particles.
Inventors
- 👤 Anthony Steinmetz
- 👤 Jacobus J. Arnold
- 👤 Fransiscus G. C. Verweg
- 👤 Hendrik Groeneboer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:00
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H05K3/00; H05K3/22; H05K3/24; H05K3/245
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
140 words
An electrical connector particularly suitable for use in low-voltage applications, said connector comprising an electrically insulating body and electrical conductors extending from said electrically insulating body characterized in that each of said electrical conductors comprises a substrate of a base metal readily oxidizable in air, an intermediate 0.1-2 μm thick gold layer on said substrate and an outer layer on said gold intermediate layer consisting of a mixture having a paste-like consistency of a binder selected from the group consisting of greases, oils and waxes and approximately 10-50% by weight of electrically conductive particles of a hardness in excess of any metal oxide capable of being formed by oxidation in air of said base metal and of a minimum diameter at least equal to the thickness of any layer capable of being formed by said oxide of said base metal.
Claim 2
Dependent Claim
140 words
An electrical connector particularly suitable for use in low-voltage applications, said connector comprising an electrically insulating body and electrical conductors extending from said electrically insulating body characterized in that each of said electrical conductors comprises a substrate of a base metal readily oxidizable in air, an intermediate 0.1-2 μm thick gold layer on said substrate and an outer layer on said gold intermediate layer consisting of a mixture having a paste-like consistency of a binder selected from the group consisting of greases, oils and waxes and approximately 10-50% by weight of electrically conductive particles of a hardness in excess of any metal oxide capable of being formed by oxidation in air of said base metal and of a minimum diameter at least equal to the thickness of any layer capable of being formed by said oxide of said base metal.
Claim 3
Dependent Claim
13 words
The electrical connector of claim 1 wherein the base metal is a phosphor-bronze.
References Cited (Backward Citations)
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US3853382A
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US4100385A
Cited
US4138604A
Cited
US4183611A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-12 | 1988-08-13 | 1989-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-12 | 1992-08-13 | 1993-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-12 | 1996-08-13 | 1997-02-12 | $7700.00 | Window Closed / Lapsed |