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US6407932B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Electromagnetic interference shield and ground cage

Assignee: Viavi Solutions Inc
•
Filing: 1999-10-01
•
Granted: 2002-06-18
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Expires: 2019-10-01
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Abstract

Abstract An electrical component is provided that has a plurality of electrical leads. Further, an electromagnetic interference shield and ground cage is provided which has a plurality of conductive walls connected together to form an enclosure having an open bottom. One of the walls has a plurality of openings formed therein to allow the plurality of leads to be passed into the enclosure. The electromagnetic interference shield and ground cage further has at least two ground connection pins attached to a lower edge of the walls. One of the leads is a ground lead that is electrically coupled to the electromagnetic interference shield and ground cage at one of the openings, thus reducing the length, inductance and impedance of the ground lead.

Inventors

  • 👤 David Peter Gaio
  • 👤 William K. Hogan
  • 👤 Paul John Sendelbach

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 08:28
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/648; H01R13/658; H01R13/6581; H01R13/6585; H01R13/6588; H01R13/6591; H01R13/6597; H01R13/6594

Claims Analysis

Total Claims: 26
Claim 1
Independent Claim 72 words
An electromagnetic interference shield and ground cage, comprising: a plurality of conductive walls connected together to form an enclosure, with at least one of said walls having at least one opening formed therein to allow a lead to be passed into the enclosure; and an insulator clip disposed in the at least one opening, said insulator clip preventing the lead passing through the at least one opening from contacting said one wall.
Claim 2
Dependent Claim 72 words
An electromagnetic interference shield and ground cage, comprising: a plurality of conductive walls connected together to form an enclosure, with at least one of said walls having at least one opening formed therein to allow a lead to be passed into the enclosure; and an insulator clip disposed in the at least one opening, said insulator clip preventing the lead passing through the at least one opening from contacting said one wall.
Claim 3
Dependent Claim 97 words
The electromagnetic interference shield and ground cage defined in claim 1 , wherein said insulator clip includes a base portion having an opening formed therein, and two protruding clips disposed on opposing edges of the opening in the base portion, said protruding clips extending through the at least one opening to attach said insulator clip to said one wall with the opening in the base portion being in registration with the at least one opening in said one wall, said protruding clips preventing the lead passing through the at least one opening from contacting said one wall.
Claim 4
Dependent Claim 57 words
The electromagnetic interference shield and ground cage defined in claim 2 , wherein said one wall has a plurality of openings formed therein to allow a plurality of leads to be passed into the enclosure; and wherein the opening in the base portion is smaller than at least two of the openings formed in said one wall.
Claim 5
Dependent Claim 47 words
The electromagnetic interference shield and ground cage defined in claim 3 , wherein said enclosure has an open bottom; wherein said plurality of walls includes a top wall, two side walls, a front wall and a back wall; and wherein said one wall comprises the front wall.
Claim 6
Dependent Claim 36 words
The electromagnetic interference shield and ground cage defined in claim 1 , further comprising a plurality of ground connection pins, each connection pin being attached to a lower edge of a respective one of said walls.
Claim 7
Dependent Claim 84 words
An electromagnetic interference shield and ground cage, comprising: a plurality of conductive walls, including a top wall, two side walls, a front wall and a back wall, connected together to form an enclosure having an open bottom, with said front wall having a plurality of openings formed therein to allow a plurality of leads to be passed into the enclosure; at least two ground connection pins attached to a lower edge of said walls; and an insulator clip disposed in one of the openings.
Claim 8
Dependent Claim 84 words
An electromagnetic interference shield and ground cage, comprising: a plurality of conductive walls, including a top wall, two side walls, a front wall and a back wall, connected together to form an enclosure having an open bottom, with said front wall having a plurality of openings formed therein to allow a plurality of leads to be passed into the enclosure; at least two ground connection pins attached to a lower edge of said walls; and an insulator clip disposed in one of the openings.
Claim 9
Dependent Claim 26 words
The electromagnetic interference shield and ground cage defined in claim 6 , wherein said plurality of conductive walls and said ground connection pins are integrally-formed together.
Claim 10
Dependent Claim 25 words
The electromagnetic interference shield and ground cage defined in claim 6 , wherein said plurality of openings comprises four openings formed in the front wall.
Claim 11
Dependent Claim 109 words
The electromagnetic interference shield and ground cage defined in claim 6 , wherein said insulator clip includes a base portion having an opening formed therein, and two protruding clips disposed on opposing edges of the opening in the base portion, said protruding clips extending through the one of the openings formed in the front wall to attach the insulator clip to the front wall with the opening in the base portion being in registration with the one of the openings in the front wall, said protruding clips further preventing a lead passing through the one of the openings from contacting the other leads and from contacting the front wall.
Claim 12
Dependent Claim 33 words
The electromagnetic interference shield and ground cage defined in claim 1 , wherein the opening in the base portion is smaller than at least two of the openings formed in the front wall.
Claim 13
Dependent Claim 34 words
The electromagnetic interference shield and ground cage defined in claim 6 , wherein said side walls abut against said back wall at respective abutting edges thereof, and wherein the abutting edges have intermeshing teeth.
Claim 14
Dependent Claim 113 words
A combination, comprising: an electrical component having a plurality of electrical leads; and an electromagnetic interference shield and ground cage, having a plurality of conductive walls connected together to form an enclosure having an open bottom, with one of said walls having a plurality of openings formed therein to allow the plurality of leads to be passed into the enclosure; and at least two ground connection pins attached to a lower edge of said walls; wherein one of the leads is a ground lead electrically coupled to the electromagnetic interference shield and ground cage at one of the openings; and wherein the electrical component is one of an optical receiver and optical transmitter.
Claim 15
Dependent Claim 113 words
A combination, comprising: an electrical component having a plurality of electrical leads; and an electromagnetic interference shield and ground cage, having a plurality of conductive walls connected together to form an enclosure having an open bottom, with one of said walls having a plurality of openings formed therein to allow the plurality of leads to be passed into the enclosure; and at least two ground connection pins attached to a lower edge of said walls; wherein one of the leads is a ground lead electrically coupled to the electromagnetic interference shield and ground cage at one of the openings; and wherein the electrical component is one of an optical receiver and optical transmitter.
Claim 16
Dependent Claim 26 words
The combination defined in claim 12 , wherein another one of the leads is a power lead, and another two of the leads are data leads.
Claim 17
Dependent Claim 100 words
A combination, comprising: an electrical component having a plurality of electrical leads; an electromagnetic interference shield and ground cage, having a plurality of conductive walls connected together to form an enclosure having an open bottom, with one of said walls having a plurality of openings formed therein to allow the plurality of leads to be passed into the enclosure; and at least two ground connection pins attached to a lower edge of said walls; and a printed circuit board; wherein said ground connection pins and at least some of said leads are directly electrically connected to said printed circuit board.
Claim 18
Dependent Claim 100 words
A combination, comprising: an electrical component having a plurality of electrical leads; an electromagnetic interference shield and ground cage, having a plurality of conductive walls connected together to form an enclosure having an open bottom, with one of said walls having a plurality of openings formed therein to allow the plurality of leads to be passed into the enclosure; and at least two ground connection pins attached to a lower edge of said walls; and a printed circuit board; wherein said ground connection pins and at least some of said leads are directly electrically connected to said printed circuit board.
Claim 19
Dependent Claim 31 words
The combination defined in claim 14 , wherein one of the leads is a ground lead electrically coupled to the electromagnetic interference shield and ground cage at one of the openings.
Claim 20
Dependent Claim 46 words
The combination defined in claim 15 , wherein another one of the leads is a power lead, and another two of the leads are data leads, said power lead and said data leads being the leads that are directly electrically connected to said printed circuit board.
Claim 21
Dependent Claim 52 words
The combination defined in claim 16 , wherein said plurality of walls comprises a top wall, two side walls, a front wall and a back wall; and wherein said plurality of openings comprises four openings formed in the front wall, each of the four openings accommodating a respective one of the leads.
Claim 22
Dependent Claim 106 words
The combination defined in claim 17 , further comprising an insulator clip disposed in the opening that accommodates said power lead, said insulator clip including a base portion having an opening formed therein, and two protruding clips disposed on opposing edges of the opening in the base portion, said protruding clips extending through the opening that accommodates said power lead to attach the insulator clip to the front wall with the opening in the base portion being in registration with the opening that accommodates said power lead, said protruding clips further preventing the power lead from contacting the data leads and from contacting the front wall.
Claim 23
Dependent Claim 152 words
A computer, comprising: a housing; and a transceiver disposed in said housing, comprising: at least one printed circuit board; at least one of an optical receiver and optical transmitter disposed on said circuit board, said at least one of an optical receiver and optical transmitter having a plurality of electrical leads electrically coupled to said printed circuit board; and an electromagnetic interference shield and ground cage, having a plurality of conductive walls connected together to form an enclosure having an open bottom facing the printed circuit board, with one of said walls having a plurality of openings formed therein to allow at least some of the plurality of leads to be passed into the enclosure and directly connected to said printed circuit board; and at least two ground connection pins attached to a lower edge of said walls and electrically connected to a ground potential by way of said printed circuit board.
Claim 24
Dependent Claim 152 words
A computer, comprising: a housing; and a transceiver disposed in said housing, comprising: at least one printed circuit board; at least one of an optical receiver and optical transmitter disposed on said circuit board, said at least one of an optical receiver and optical transmitter having a plurality of electrical leads electrically coupled to said printed circuit board; and an electromagnetic interference shield and ground cage, having a plurality of conductive walls connected together to form an enclosure having an open bottom facing the printed circuit board, with one of said walls having a plurality of openings formed therein to allow at least some of the plurality of leads to be passed into the enclosure and directly connected to said printed circuit board; and at least two ground connection pins attached to a lower edge of said walls and electrically connected to a ground potential by way of said printed circuit board.
Claim 25
Dependent Claim 50 words
The computer defined in claim 19 , wherein one of the leads is a ground lead electrically coupled to the electromagnetic interference shield and ground cage at one of the openings so as to connect said at least one of an optical receiver and optical transmitter to the ground potential.
Claim 26
Dependent Claim 162 words
The computer defined in claim 20 , wherein another one of the leads is a power lead, and another two of the leads are data leads; wherein said plurality of walls comprises a top wall, two side walls, a front wall and a back wall; and wherein said plurality of openings comprises four openings formed in the front wall; further comprising an insulator clip disposed in an opening that accommodates said power lead, said insulator clip including a base portion having an opening formed therein, and two protruding clips disposed on opposing edges of the opening in the base portion, said protruding clips extending through the opening that accommodates said power lead to attach the insulator clip to the front wall with the opening in the base portion being in registration with the opening that accommodates said power lead, said protruding clips further preventing the respective leads passing through the respective openings from contacting each other, and from contacting the front wall.

References Cited (Backward Citations)

US3368150A Cited
US5365410A Cited
US5414597A Cited
US5559676A Cited
US6290535B1 Cited
US6267625B1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2005-06-17 2005-12-17 2006-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2009-06-17 2009-12-17 2010-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2013-06-17 2013-12-17 2014-06-18 $7700.00 Window Closed / Lapsed

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