US5004866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained grounding strip
Assignee: International Business Machines Corp
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Filing: 1989-10-27
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Granted: 1991-04-02
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Expires: 2009-10-27
Abstract
Abstract An apparatus for electromagnetically shielding electronic equipment has a first and second spaced apart housing members having a gap between them. A rigid member having a plurality of openings is interposed between them. A spring member connected to the rigid member has a plurality of spring fingers extending through openings in the rigid member. A cover member has a cam which forces the first housing member against one side of the spring member to extend the spring finger into the second housing member in order to cause an electrical connection between the first and second housing members.
Inventors
- 👤 Kevin K. Cooke
- 👤 John R. DeWitt
- 👤 Paul J. Galinis
- 👤 Walter B. Koteff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:16
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1422; H05K7/1427; H05K7/1429; G; G06; G06F; G06F1/00; G06F1/16; G06F1/18; G06F1/181; G06F1/182; H05K9/00; H05K9/0007; H05K9/0015; H05K9/0016
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
85 words
Apparatus for electromagnetically shielding electronic equipment comprising: first and second spaced apart housing members and means defining a gap there between; an interposer between said means defining said gap; a spring member on said interposer and having portions thereof facing and extending towards said means defining said gap; and a cover member for embracing said means defining said gap, and cam means associated with said cover member to effect closure of said gap to bias said first and second housing members against said spring member.
Claim 2
Dependent Claim
85 words
Apparatus for electromagnetically shielding electronic equipment comprising: first and second spaced apart housing members and means defining a gap there between; an interposer between said means defining said gap; a spring member on said interposer and having portions thereof facing and extending towards said means defining said gap; and a cover member for embracing said means defining said gap, and cam means associated with said cover member to effect closure of said gap to bias said first and second housing members against said spring member.
Claim 3
Dependent Claim
36 words
Apparatus in accordance with claim 1 wherein at least said means defining said gap and said spring member are composed of a conductive medium to create an electrical connection between said first and second housing members.
Claim 4
Dependent Claim
36 words
Apparatus in accordance with claim 1 wherein said means defining a gap comprises a first flange extending from said first member and a second flange, spaced from said first flange, and extending from said second member.
Claim 5
Independent Claim
124 words
An apparatus for electromagnetically shielding electronic equipment comprising: first and second spaced apart housing members and means defining a gap there between; an interposer between said means defining said gap; a spring member on said interposer and having portions thereof facing and extending towards said means defining said gap; and a cover member for embracing said means defining said gap, and cam means associated with said cover member to effect closure of said gap to bias said first and second housing members against said spring member; wherein said interposer comprises a flange disposed within said gap; and a plurality of longitudinally spaced apart apertures extending through said flange; and fingers on said spring member extending through said apertures for contact with said housing members.
Claim 6
Independent Claim
124 words
An apparatus for electromagnetically shielding electronic equipment comprising: first and second spaced apart housing members and means defining a gap there between; an interposer between said means defining said gap; a spring member on said interposer and having portions thereof facing and extending towards said means defining said gap; and a cover member for embracing said means defining said gap, and cam means associated with said cover member to effect closure of said gap to bias said first and second housing members against said spring member; wherein said interposer comprises a flange disposed within said gap; and a plurality of longitudinally spaced apart apertures extending through said flange; and fingers on said spring member extending through said apertures for contact with said housing members.
Claim 7
Dependent Claim
206 words
An electromagnetic device for shielding a housing for electronic equipment comprising: a first and second housing members having a gap between them; a relatively rigid member interposed between said first and second housing members, said rigid member having an outer surface opposed said first housing and an inner surface opposed said second housing, said rigid member having an edge and a plurality of openings adjacent the edge; a contact spring member attached to the edge of said rigid member, said contact spring member having a plurality of individual spring fingers, each spring finger having a first surface extending away from the outer surface of said rigid member, said first surface extending into a second surface extending through said opening and being positioned against the inner surface of said rigid member in the rest; and a cover member enclosing a portion of said first member, said cover member forcing said portion of said first member towards said second member to close the gap, said first member contacting the first surface of each individual spring finger to force said second surface away from the inner surface of said rigid member and into said second housing member to create an electrical connection between said first and second housing members.
Claim 8
Dependent Claim
206 words
An electromagnetic device for shielding a housing for electronic equipment comprising: a first and second housing members having a gap between them; a relatively rigid member interposed between said first and second housing members, said rigid member having an outer surface opposed said first housing and an inner surface opposed said second housing, said rigid member having an edge and a plurality of openings adjacent the edge; a contact spring member attached to the edge of said rigid member, said contact spring member having a plurality of individual spring fingers, each spring finger having a first surface extending away from the outer surface of said rigid member, said first surface extending into a second surface extending through said opening and being positioned against the inner surface of said rigid member in the rest; and a cover member enclosing a portion of said first member, said cover member forcing said portion of said first member towards said second member to close the gap, said first member contacting the first surface of each individual spring finger to force said second surface away from the inner surface of said rigid member and into said second housing member to create an electrical connection between said first and second housing members.
Claim 9
Dependent Claim
29 words
The apparatus in accordance with claim 5, wherein said spring member is composed of a conductive medium to create an electrical connection between said first and second housing members.
Claim 10
Independent Claim
74 words
An apparatus for electromagnetically shielding electronic equipment comprising: first and second spaced apart housing members and means defining a gap there between; an interposer between said means defining said gap; a spring member on said interposer and having portions thereof facing and extending towards said means defining said gap; cam means associated with a cover member to effect closure of said gap to bias said first and second housing members against said spring member.
Claim 11
Independent Claim
74 words
An apparatus for electromagnetically shielding electronic equipment comprising: first and second spaced apart housing members and means defining a gap there between; an interposer between said means defining said gap; a spring member on said interposer and having portions thereof facing and extending towards said means defining said gap; cam means associated with a cover member to effect closure of said gap to bias said first and second housing members against said spring member.
Claim 12
Dependent Claim
36 words
Apparatus in accordance with claim 7 wherein at least said means defining said gap and said spring member are composed of a conductive medium to create an electrical connection between said first and second housing members.
Claim 13
Dependent Claim
36 words
Apparatus in accordance with claim 7 wherein said means defining a gap comprises a first flange extending from said first member and a second flange, spaced from said first flange, and extending from said second member.
Claim 14
Independent Claim
112 words
An apparatus for electromagnetically shielding electronic equipment comprising: first and second spaced apart housing members and means defining a gap there between; an interposer between said means defining said gap; a spring member on said interposer and having portions thereof facing and extending towards said means defining said gap; cam means associated with a cover member to effect closure of said gap to bias said first and second housing members against said spring member; wherein said interposer comprises a flange disposed within said gap; and a plurality of longitudinally spaced apart apertures extending through said flange; and fingers on said spring member extending through said apertures for contact with said housing members.
Claim 15
Independent Claim
112 words
An apparatus for electromagnetically shielding electronic equipment comprising: first and second spaced apart housing members and means defining a gap there between; an interposer between said means defining said gap; a spring member on said interposer and having portions thereof facing and extending towards said means defining said gap; cam means associated with a cover member to effect closure of said gap to bias said first and second housing members against said spring member; wherein said interposer comprises a flange disposed within said gap; and a plurality of longitudinally spaced apart apertures extending through said flange; and fingers on said spring member extending through said apertures for contact with said housing members.
References Cited (Backward Citations)
DE2601277A1
Cited
US4750569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |