Patent US3825874A successfully refreshed from Google Patents.
US3825874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector
Assignee: TDK Micronas GmbH
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Filing: 1973-07-05
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Granted: 1974-07-23
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Expires: 1993-07-05
Abstract
Abstract An electrical connector with an internal grounding foil for grounding outer conductors of multi-conductor cables. The invention is particularly suited for Twinax cables in which the shields are grounded to the connector shell by the grounding foil to preclude or minimize the transmission of electromagnetic pulses (EMP) through the connector. The connector also houses pin contacts which may be either insulated from the grounding foil or carry filter elements which attenuate radio frequency interference (RFI).
Inventors
- 👤 W Peverill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:37
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/38; H01R24/40; H01R24/56; H01R24/568; H01R13/00; H01R13/648; H01R13/658; H01R13/6591; H01R13/6592; H01R13/6597
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
189 words
An electrical connector comprising: an electrical connector shell; a grounding foil in said shell frictionally engaging the inner surface of said shell; a plurality of apertures in said foil having substantially the same diameter, each said aperture being bordered by a plurality of inwardly extending tangs integral with said foil; first and second electrical contacts; said first contact comprising a pin contact having a diameter substantially less than that of said second contact and said apertures, said pin contact passing through one of said apertures without engaging the tangs associated with said one aperture; a cylindrical member surrounding said pin contact and passing through said one aperture, the outer surface of said member frictionally engaging said tangs associated with said one aperture; said second contact including an inner conductor and an outer conductor surrounding and spaced from said inner conductor, said second contact extending through another of said apertures with said outer conductor frictionally engaging the tangs associated with said other aperture; and a cable connected to said second contact, said cable having a pair of conductors coupled, respectively, to the inner and outer conductors of said second contact.
Claim 2
Dependent Claim
189 words
An electrical connector comprising: an electrical connector shell; a grounding foil in said shell frictionally engaging the inner surface of said shell; a plurality of apertures in said foil having substantially the same diameter, each said aperture being bordered by a plurality of inwardly extending tangs integral with said foil; first and second electrical contacts; said first contact comprising a pin contact having a diameter substantially less than that of said second contact and said apertures, said pin contact passing through one of said apertures without engaging the tangs associated with said one aperture; a cylindrical member surrounding said pin contact and passing through said one aperture, the outer surface of said member frictionally engaging said tangs associated with said one aperture; said second contact including an inner conductor and an outer conductor surrounding and spaced from said inner conductor, said second contact extending through another of said apertures with said outer conductor frictionally engaging the tangs associated with said other aperture; and a cable connected to said second contact, said cable having a pair of conductors coupled, respectively, to the inner and outer conductors of said second contact.
Claim 3
Dependent Claim
49 words
An electrical connector as set forth in claim 1 wherein: one of the conductors of said cable connected to said second contact comprises a pair of twisted Insulated wires; and said second contact has a pair of said inner conductors each connected to a respective one of said wires.
Claim 4
Dependent Claim
87 words
An electrical connector as set forth in claim 1 including: a pair of insulators each positioned on opposite sides of said foil; said insulators having pairs of coaxial passages therein aligned with each of said apertures, the portions of said pairs of passages adjacent to said foil having substantially the same diameter; said second contact being positioned in one of said pairs of passages; and means in one of said passages of said one pair for releasably retaining said second contact in said one pair of passages.
Claim 5
Dependent Claim
35 words
An electrical connector as set forth in claim 1 wherein: said shell is cylindrical; and said grounding foil is formed with a plurality of peripheral fingers frictionally engaging the inner cylindrical surface of said shell.
Claim 6
Dependent Claim
29 words
An electrical connector as set forth in claim 1 wherein: there are provided a plurality of said first and second contacts each positioned in one of said foil apertures.
References Cited (Backward Citations)
US3335388A
Cited
US3569915A
Cited
US3646495A
Cited
US3648222A
Cited
US3629785A
Cited
US3744001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |