Patent US5059129A successfully refreshed from Google Patents.
US5059129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector assembly including bilayered elastomeric member
Assignee: International Business Machines Corp
•
Filing: 1991-03-25
•
Granted: 1991-10-22
•
Expires: 2011-03-25
Abstract
Abstract An electrical connector assembly including a bilayered elastomeric element of integral construction for providing effective contact force (pressure) between corresponding arrays of conductors located on two circuit members (e.g., one a flexible circuit and the other a more rigid, circuit board or card). High density connections are assured in a sound, effective manner. The elastomer, preferably silicon rubber, includes a base layer with several spaced openings therein and an adjacent layer of several upstanding projections (e.g., cylindrical or box-like) spacedly located relative to the adjacent openings within the first layer. The first layer openings accommodate bulged elastomeric during compression to assist in preventing undesirable elastomeric buckling, thereby assuring the desired contact force (pressure) application.
Inventors
- 👤 William L. Brodsky
- 👤 Thomas G. Macek
- 👤 John J. Squires
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:00
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/50; H01R12/59; H01R12/62; H01R13/00; H01R13/02; H01R13/22; H01R13/24; H01R13/2407; H01R13/2414
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
181 words
An electrical connector assembly comprising: a first circuit member including a plurality of electrical conductors; a second circuit member including a plurality of electrical conductors; a pressure exertion member for exerting a predetermined pressure against said second circuit member to cause each of said electrical conductors of said second circuit member to electrically contact a respective one of said electrical conductors of said first circuit member, said pressure exertion member including a bilayered elastomeric element having a first layer including a plurality of openings spacedly located therein in a predetermined pattern and a second layer adjacent said first layer and including a plurality of upstanding projections located in a pre-established pattern relative to said pattern of openings in said first layer, each of said upstanding projections adapted for aligning with a respective one of said electrical conductors of said second circuit member and for engaging said circuit member to exert said predetermined pressure thereagainst; and means for retaining said pressure exertion member against said second circuit member to cause said exertion member to exert said pressure against said second circuit member.
Claim 2
Dependent Claim
181 words
An electrical connector assembly comprising: a first circuit member including a plurality of electrical conductors; a second circuit member including a plurality of electrical conductors; a pressure exertion member for exerting a predetermined pressure against said second circuit member to cause each of said electrical conductors of said second circuit member to electrically contact a respective one of said electrical conductors of said first circuit member, said pressure exertion member including a bilayered elastomeric element having a first layer including a plurality of openings spacedly located therein in a predetermined pattern and a second layer adjacent said first layer and including a plurality of upstanding projections located in a pre-established pattern relative to said pattern of openings in said first layer, each of said upstanding projections adapted for aligning with a respective one of said electrical conductors of said second circuit member and for engaging said circuit member to exert said predetermined pressure thereagainst; and means for retaining said pressure exertion member against said second circuit member to cause said exertion member to exert said pressure against said second circuit member.
Claim 3
Dependent Claim
17 words
The electrical connector according to claim 1 wherein said bilayered elastomeric element is comprised of silicone rubber.
Claim 4
Dependent Claim
34 words
The electrical connector assembly according to claim 1 wherein said first circuit member includes a substantially rigid substrate, said plurality of said electrical conductors of said first circuit member being located on said substrate.
Claim 5
Dependent Claim
23 words
The electrical connector assembly according to claim 3 wherein each of said electrical conductors of said first circuit member comprises a metallic pad.
Claim 6
Dependent Claim
33 words
The electrical connector assembly according to claim 1 wherein said second circuit member comprises a flexible substrate, each of said electrical conductors of said second circuit member being located on said flexible substrate.
Claim 7
Dependent Claim
23 words
The electrical connector assembly according to claim 5 wherein each of said electrical conductors of said second circuit member comprises a metallic pad.
Claim 8
Dependent Claim
46 words
The electrical connector assembly according to claim 1 wherein selected ones of said openings within said first layer are each located within said first layer substantially adjacent a respective one of said upstanding projections and substantially between said respective projection and a second projection adjacent thereto.
Claim 9
Dependent Claim
21 words
The electrical connector according to claim 7 wherein each of said selected ones of said openings is of substantially cylindrical configuration.
Claim 10
Dependent Claim
17 words
The electrical connector according to claim 8 wherein said upstanding projections are of a substantially box-like configuration.
Claim 11
Dependent Claim
17 words
The electrical connector according to claim 8 wherein said upstanding projections are of a substantially cylindrical configuration.
Claim 12
Dependent Claim
33 words
The electrical connector assembly according to claim 1 wherein said predetermined pressure provided by said pressure exertion member is within the range of from about ten to about fifty pounds per square inch.
Claim 13
Dependent Claim
40 words
The electrical connector assembly according to claim 1 wherein said first and second layers of said elastomeric element are each compressed from about fifteen to about thirty-five percent of their original, unstressed height during said exertion of said predetermined pressure.
References Cited (Backward Citations)
GB700490A
Cited
US3586917A
Cited
US3861135A
Cited
US3883213A
Cited
US3971610A
Cited
US4018496A
Cited
GB1488226A
Cited
US4029999A
Cited
US4150420A
Cited
US4064623A
Cited
US4116516A
Cited
US4184729A
Cited
US4329732A
Cited
EP0055640A1
Cited
US4513353A
Cited
US4538865A
Cited
US4597617A
Cited
US4587596A
Cited
US4647125A
Cited
US4787854A
Cited
US4768971A
Cited
US4878846A
Cited
US4937707A
Cited
US4849856A
Cited
US4914551A
Cited
US4902234A
Cited
US4936783A
Cited
US5015191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-21 | 1995-04-22 | 1995-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-21 | 1999-04-22 | 1999-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-21 | 2003-04-22 | 2003-10-22 | $7700.00 | Window Closed / Lapsed |