US4867706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtered electrical connector
Assignee: G&H Technology Inc
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Filing: 1987-04-13
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Granted: 1989-09-19
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Expires: 2007-04-13
Abstract
Abstract A filter connector comprising a conductive housing containing a pin array traversing corresponding holes in a grommet, a dielectric body, a planar capacitor array, ferrite inductor beads mounted on at least some of the pins, a non-conductive body to insulate said beads from one another and from said capacitor, a non-conductive seal, a second capacitor array, a second grommet, a second interface seal a grounding cylinder surrounding said capacitor arrays and said beads in an electrical contact with a ring of contact fingers mounted in the interior of said housing. Optionally, a conductive O-ring encircles said shell, to improve shielding.
Inventors
- 👤 Tian-Peng Tang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:58
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/719; H01R13/7195
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
315 words
A multi-pin filtered electrical connector providing EMI filtering, for as many as desired of pins in said connector, which filter connector comprises: a multiplicity of electrical pins; a first non-conductive grommet seal provided with openings for said pins, said first grommet being positioned at the outer face of a dielectric body; said dielectric body having openings corresponding to said pins; a first planar body having openings corresponding to said pins; a first planar ceramic capacitor array having openings corresponding to said pins, positioned against said dielectric body; ferrite inductor beads mounted on and around each of said pins which are desired to be filtered; a non-conductive elastomer body provided with openings to accept each of said beads and each of the non-filtered pins, and to insulate said ferrite beads from each other and from said first capacitor array, said elastomer body being positioned against said first capacitor array; a first non-capacitor interface seal, provided with openings for said pins, positioned against the outer face of said elastomer body; a second planar ceramic capacitor array having openings corresponding to said pins, positioned against said first interface seal; a second non-conductive grommet seal, provided with openings for said pins, positioned at the outer face of said second capacitor; a second non-conductive interface seal, provided with openings for said pins, positioned at the outer face of said second grommet; a conductive grounding cylinder encircling said second grommet seal and said first capacitor array and also a portion of said dielectric body, and capable of being placed into electrical contact with said grounding cylinder; a conductive shell adapted for housing said pins, seals, dielectric body, elastomer body, capacitor arrays, and ground cylinder; and supported within said shell, a conductive ring element providing a multiplicity of resilient contact fingers for making electrical contact with said grounding cylinder and providing an electrical grounding path from said pin array to said shell.
Claim 2
Dependent Claim
315 words
A multi-pin filtered electrical connector providing EMI filtering, for as many as desired of pins in said connector, which filter connector comprises: a multiplicity of electrical pins; a first non-conductive grommet seal provided with openings for said pins, said first grommet being positioned at the outer face of a dielectric body; said dielectric body having openings corresponding to said pins; a first planar body having openings corresponding to said pins; a first planar ceramic capacitor array having openings corresponding to said pins, positioned against said dielectric body; ferrite inductor beads mounted on and around each of said pins which are desired to be filtered; a non-conductive elastomer body provided with openings to accept each of said beads and each of the non-filtered pins, and to insulate said ferrite beads from each other and from said first capacitor array, said elastomer body being positioned against said first capacitor array; a first non-capacitor interface seal, provided with openings for said pins, positioned against the outer face of said elastomer body; a second planar ceramic capacitor array having openings corresponding to said pins, positioned against said first interface seal; a second non-conductive grommet seal, provided with openings for said pins, positioned at the outer face of said second capacitor; a second non-conductive interface seal, provided with openings for said pins, positioned at the outer face of said second grommet; a conductive grounding cylinder encircling said second grommet seal and said first capacitor array and also a portion of said dielectric body, and capable of being placed into electrical contact with said grounding cylinder; a conductive shell adapted for housing said pins, seals, dielectric body, elastomer body, capacitor arrays, and ground cylinder; and supported within said shell, a conductive ring element providing a multiplicity of resilient contact fingers for making electrical contact with said grounding cylinder and providing an electrical grounding path from said pin array to said shell.
Claim 3
Dependent Claim
20 words
The filter connector of claim 1 wherein each of said two capacitor arrays are soldered to each of said pins.
Claim 4
Dependent Claim
28 words
The filter connector of claim 1 wherein a conductive ring is positioned on and around said shell to further ensure EMI shielding effectiveness at a connector mounting hole.
Claim 5
Dependent Claim
19 words
The filter connector of claim 3 wherein said two planar capacitor arrays are soldered to each of said pins.
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) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |