US4907975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector utilizing flexible electrical circuitry
Assignee: International Business Machines Corp
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Filing: 1988-12-19
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Granted: 1990-03-13
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Expires: 2008-12-19
Abstract
Abstract An assembly for interconnecting two relatively rigid circuit cards using a flexible circuit for forming this connection is provided. The assembly includes a housing which has a first pressure exerting member which has the flexible circuit reeved therearound. Second and third pressure exerting members are provided in spaced juxtaposed relationship against which the opposite legs of the flexible circuit are maintained to define therebetween a slot for the reception of a circuit card. The assembly is inserted into a card substrate with the first pressure exerting means causing the flexible circuit to be biased into contact with the contacts on a substrate. A second circuit card is inserted into the slot between the legs of the flexible circuit, and the second and third pressure exerting members urge each of the legs as the flexible circuit into contact with the second circuit board.
Inventors
- 👤 David W. Dranchak
- 👤 David E. Engle
- 👤 David E. Hessian
- 👤 Alan D. Knight
- 👤 Wai M. Ma
- 👤 Thomas G. Macek
- 👤 John J. Squires
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:48
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/50; H01R12/59; H01R12/62; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/325; H05K3/36; H05K3/361
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
208 words
An assembly for connecting flexible circuit means to connectors on a substrate member and connections on a card member comprising; a housing member; first resilient pressure exerting means carried by said housing member and adapted to receive flexible circuit means reeved thereon and positioned to urge said reeved portions of said flexible circuit means against the connectors on the substrate to cause electrical contact; second and third individual pressure exerting means carried by said housing independently of each other and of said first pressure exerting means, and being positioned in spaced juxtaposed relationship and defining an opening therebetween; locating means to maintain one leg portion of said flexible circuit positioned in contact with the second pressure exerting means and another leg portion of said flexible circuit means positioned in contact with the third pressure exerting means, said two leg portions of said flexible circuit defining therebetween a slot to receive a circuit card; said slot being of less width than the thickness of the circuit card; whereby when said card is inserted in said slot and the reeved portion of the flexible circuit means is in contact with the connectors on said substrate a circuit connection is establish between said substrate and said card through said flexible circuit.
Claim 2
Dependent Claim
208 words
An assembly for connecting flexible circuit means to connectors on a substrate member and connections on a card member comprising; a housing member; first resilient pressure exerting means carried by said housing member and adapted to receive flexible circuit means reeved thereon and positioned to urge said reeved portions of said flexible circuit means against the connectors on the substrate to cause electrical contact; second and third individual pressure exerting means carried by said housing independently of each other and of said first pressure exerting means, and being positioned in spaced juxtaposed relationship and defining an opening therebetween; locating means to maintain one leg portion of said flexible circuit positioned in contact with the second pressure exerting means and another leg portion of said flexible circuit means positioned in contact with the third pressure exerting means, said two leg portions of said flexible circuit defining therebetween a slot to receive a circuit card; said slot being of less width than the thickness of the circuit card; whereby when said card is inserted in said slot and the reeved portion of the flexible circuit means is in contact with the connectors on said substrate a circuit connection is establish between said substrate and said card through said flexible circuit.
Claim 3
Dependent Claim
26 words
The assembly as defined in claim 1 wherein each of said pressure exerting means includes a pad of elastomeric material conformally contacting said flexible circuit means.
Claim 4
Dependent Claim
38 words
The assembly as claimed in claim 1 wherein said second and third pressure exerting means are oriented transverse to the orientation of the first pressure exerting means whereby to support the card member transverse to the substrate member.
Claim 5
Dependent Claim
76 words
The as defined in claim 1 wherein said flexible circuit member is comprised of a pair of flexible circuit members and said first resilient pressure exerting means is comprised of a pair of resilient members; and wherein each of said flexible circuit members is reeved around one of said resilient members; and wherein one of said flexible circuit members provides one leg portion and the other of said flexible circuit members provides the other leg portion.
Claim 6
Dependent Claim
24 words
The assembly as defined in claim 4 wherein compression means are provided to bias said pads of elastomeric material against said flexible circuit means.
Claim 7
Dependent Claim
40 words
The assembly as defined in claim 1 wherein said flexible circuit means includes a single flexible circuit member having a central portion reeved around said first pressure exerting means, and wherein said single flexible circuit member provides both leg portions.
Claim 8
Dependent Claim
35 words
The assembly as defined in claim 6 wherein said flexible circuit means includes circuit connections on each side thereof and means interconnecting some of the connections on one side to those on the other side.
Claim 9
Dependent Claim
17 words
The assembly as defined in claim 1 including means to removably secure said housing to said substrate.
Claim 10
Dependent Claim
25 words
The assembly as defined in claim 8 wherein means are provided to interconnect a pair of said housings on opposite sides of said substrate member.
Claim 11
Dependent Claim
198 words
An assembly for connecting a pair of flexible circuit members to connectors on a substrate member and connections on a card member comprising; a housing member; first resilient pressure exerting means carried by said housing member, said first pressure exerting means including a pair of block members, each block member having a pressure exerting member disposed thereon, and a flexible arm extending therefrom; second and third pressure exerting means, one carried by each of said flexible arms and positioned in spaced juxtaposed relationship and defining an opening therebetween; a flexible circuit member reeved around each pressure exerting means and having a portion reeved around each block member and a portion reeved around each resilient arm, the portions of each of said flexible members reeved around their respective resilient arms defining a slot for the reception of a circuit card, which slot has a width less than the thickness of the circuit card; whereby when said card is inserted in said slot and the reeved portion of the flexible circuit around each block member is in contact with the connectors on said substrate a circuit connection is established between said substrate and said card through said flexible circuit members.
Claim 12
Dependent Claim
198 words
An assembly for connecting a pair of flexible circuit members to connectors on a substrate member and connections on a card member comprising; a housing member; first resilient pressure exerting means carried by said housing member, said first pressure exerting means including a pair of block members, each block member having a pressure exerting member disposed thereon, and a flexible arm extending therefrom; second and third pressure exerting means, one carried by each of said flexible arms and positioned in spaced juxtaposed relationship and defining an opening therebetween; a flexible circuit member reeved around each pressure exerting means and having a portion reeved around each block member and a portion reeved around each resilient arm, the portions of each of said flexible members reeved around their respective resilient arms defining a slot for the reception of a circuit card, which slot has a width less than the thickness of the circuit card; whereby when said card is inserted in said slot and the reeved portion of the flexible circuit around each block member is in contact with the connectors on said substrate a circuit connection is established between said substrate and said card through said flexible circuit members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |