Patent US5082457A successfully refreshed from Google Patents.
US5082457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter electrical connector
Assignee: Leoni Wiring Systems Inc
•
Filing: 1991-03-29
•
Granted: 1992-01-21
•
Expires: 2011-03-29
Abstract
Abstract A filter electrical connector includes a plug housing, a center housing and a receptacle housing connected in series by a number of connecting screws. The plug housing and center housing define a central filter cavity. The plug housing and receptacle housing provide means for receiving electrical connectors associated with an electronic device requiring EMI filtering. A T-type filter arrangement is provided within the filter cavity of the connector adapter. The filter arrangement includes PC board mounted capacitors, each in electrical connection between a corresponding connecting pin and a robust common ground. This ground is extended through the ground plane of the PC board, to the plug housing, through an electrical gasket to the conductive case of the electrical device requiring the EMI filtered signal. Each connecting pin extends through corresponding openings in a pair of ferrite wafers. Each one of the pair of ferrite wafers is situated on opposite sides of the PC board to sandwich the capacitors therebetween.
Inventors
- 👤 Allen N. Wollscheidt
- 👤 David P. Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:55
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/719; H01R13/7195
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
301 words
A filter electrical connector for engagement between a first and a second mating electrical connector, in which the first mating connector is electrically connected to an electronic device using EMI filtered signals carried by the filer electrical connector and includes a conductive case for a low inductance connection to the device ground, the filter electrical connector comprising: a first housing formed of an electrically conductive material defining a first recess and having first means for engaging the first mating connector, a first conductive surface adjacent said first means for engaging and a second conductive surface displaced from said first surface; a second housing formed of a non-conductive material and having means for engaging the second mating connector; a filter assembly including: a circuit board carrying a circuit pattern and a number of capacitor elements, said circuit board having a ground plane, said circuit pattern providing electrical connection between each of said number of capacitor elements and said ground plane; and a number of electrical connector pins attached to said circuit board, each of said pins being in electrical contact with a corresponding one of said number of capacitor elements, wherein said number of connector pins provide an electrical connection between the first and second mating connectors; means for supporting said filter assembly between said first and second housings when said housing are connected together, whereby said ground plane of said circuit board is maintained in intimate electrical contact with said second conductive surface of said first housing; means for connecting said first housing and said second housing together; and means for providing a low inductance electrical contact between said first conductive surface of said first housing and the case of the first mating connector when the first mating connector is engaged to said first housing by said first means for engaging.
Claim 2
Dependent Claim
301 words
A filter electrical connector for engagement between a first and a second mating electrical connector, in which the first mating connector is electrically connected to an electronic device using EMI filtered signals carried by the filer electrical connector and includes a conductive case for a low inductance connection to the device ground, the filter electrical connector comprising: a first housing formed of an electrically conductive material defining a first recess and having first means for engaging the first mating connector, a first conductive surface adjacent said first means for engaging and a second conductive surface displaced from said first surface; a second housing formed of a non-conductive material and having means for engaging the second mating connector; a filter assembly including: a circuit board carrying a circuit pattern and a number of capacitor elements, said circuit board having a ground plane, said circuit pattern providing electrical connection between each of said number of capacitor elements and said ground plane; and a number of electrical connector pins attached to said circuit board, each of said pins being in electrical contact with a corresponding one of said number of capacitor elements, wherein said number of connector pins provide an electrical connection between the first and second mating connectors; means for supporting said filter assembly between said first and second housings when said housing are connected together, whereby said ground plane of said circuit board is maintained in intimate electrical contact with said second conductive surface of said first housing; means for connecting said first housing and said second housing together; and means for providing a low inductance electrical contact between said first conductive surface of said first housing and the case of the first mating connector when the first mating connector is engaged to said first housing by said first means for engaging.
Claim 3
Dependent Claim
104 words
The filter electrical connector of claim 1, wherein: said first means for engaging the first mating connector includes a plug recess defined in said first housing and adapted to recess the case of the first mating connector therein; said first conductive surface being situated within said recess; and said means for providing a low inductance electrical contact includes; a compressible conductive element adjacent said first conductive surface of said first housing; and means for engaging said filter electrical connector to the case such that said conductive element is compressed between the case and said first conductive surface to form an intimate electrical contact therebetween.
Claim 4
Dependent Claim
18 words
The filter electrical connector of claim 2, wherein said compressible conductive element is a garter spring electrical gasket.
Claim 5
Dependent Claim
46 words
The filter electrical connector of claim 1, wherein said filter assembly further includes: a pair of inductor elements adjacent opposite surfaces of said circuit board, each of said pair of inductor elements including a number of holes therethrough to receive said number of connector pins therethrough.
Claim 6
Dependent Claim
245 words
A filter electrical connector for engagement between a first and a second mating electrical connector comprising: a first housing defining a first recess at a first mating face of said first housing and including first means for engaging the first mating electrical connector; a second housing defining a second recess at a second mating face, said second recess being complementary to said first recess to form a cavity when said first and second mating faces are engaged, said second housing including second means for engaging the second mating electrical connector; a filter assembly including; a circuit board carrying a circuit pattern and a number of capacitor elements each connected through said circuit pattern to a common ground; a pair of inductor elements adjacent opposite surfaces of said circuit board, each of said pair of inductor elements including a number of holes therethrough; and a number of first electrical connector pins attached to said circuit board, each of said pins being in electrical contact with a corresponding one of said number of capacitor elements and each projecting outwardly from said circuit board to extend through a corresponding one of said number of holes in each of said pair of inductor elements, wherein said number of connector pins provide an electrical connection between the first and second mating connectors; means for supporting said filter assembly within said cavity when said first and second housings are connected together; and means for connecting said first and second housings together.
Claim 7
Dependent Claim
245 words
A filter electrical connector for engagement between a first and a second mating electrical connector comprising: a first housing defining a first recess at a first mating face of said first housing and including first means for engaging the first mating electrical connector; a second housing defining a second recess at a second mating face, said second recess being complementary to said first recess to form a cavity when said first and second mating faces are engaged, said second housing including second means for engaging the second mating electrical connector; a filter assembly including; a circuit board carrying a circuit pattern and a number of capacitor elements each connected through said circuit pattern to a common ground; a pair of inductor elements adjacent opposite surfaces of said circuit board, each of said pair of inductor elements including a number of holes therethrough; and a number of first electrical connector pins attached to said circuit board, each of said pins being in electrical contact with a corresponding one of said number of capacitor elements and each projecting outwardly from said circuit board to extend through a corresponding one of said number of holes in each of said pair of inductor elements, wherein said number of connector pins provide an electrical connection between the first and second mating connectors; means for supporting said filter assembly within said cavity when said first and second housings are connected together; and means for connecting said first and second housings together.
Claim 8
Dependent Claim
26 words
The filter electrical connector of claim 5, wherein each of said pair of inductor elements includes a ferrite wafer having said number of holes formed therethrough.
Claim 9
Dependent Claim
58 words
The filter electrical connector of claim 5, wherein said first means for engaging a first mating electrical connector includes: a mating enclosure defined in said first housing; a connector adaptor engaged within said mating enclosure, said connector adaptor including a number of second connector pins extending through said mating enclosure into electrical engagement with said first connector pins.
Claim 10
Dependent Claim
87 words
The filter electrical connector of claim 5, wherein: each of said number of capacitor elements is a chip capacitor mounted to one of said opposite surfaces of said circuit board; and said filter assembly further includes a gasket between one of said pair of inductor elements and said one of said opposite surfaces of said circuit board to offset said one of said pair of inductor elements from said one of said opposite surfaces to form a capacitor cavity therebetween to receive said number of capacitors therein.
Claim 11
Dependent Claim
97 words
The filter electrical connector of claim 5, wherein: said means for supporting said filter assembly within said cavity includes a pair of resilient gaskets, one each disposed between one each of said pair of inductor elements and a corresponding one of said first recess and said second recess, whereby when said first and second housings are connected a stack including one of said pair of gaskets, one of said pair of inductor elements, said circuit board, the other of said pair of inductor elements and the other of said pair of gaskets is compressed within said cavity.
References Cited (Backward Citations)
US4126840A
Cited
US4173745A
Cited
US4268105A
Cited
US4431251A
Cited
US4791391A
Cited
US4500159A
Cited
US4729743A
Cited
US4726790A
Cited
US4784618A
Cited
US4772221A
Cited
US4761147A
Cited
US4867706A
Cited
US4937936A
Cited
US4954794A
Cited
US4992061A
Cited
US4929196A
Cited
US5032091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-20 | 1995-07-22 | 1996-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-20 | 1999-07-22 | 2000-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-20 | 2003-07-22 | 2004-01-21 | $7700.00 | Window Closed / Lapsed |