US4610495A
Expired / Lapsed
US
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Solderless connector apparatus and method of making the same
Assignee: Rogers Corp
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Filing: 1985-03-07
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Granted: 1986-09-09
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Expires: 2005-03-07
Abstract
Abstract A solderless connection method and apparatus is presented wherein means are provided to either gradate or minimize the change in impedance between the contact portions of circuits which are to be connected therein. In a first embodiment of the present invention, a solderless electrical connector is provided in which impedance is gradated between the two different characteristic impedances of the circuits which are to be connected. The procedure for carrying out such a gradual change in impedance is the change in dielectric constant caused by compression of a shaped cellular polymeric material. In a second embodiment, a solderless electrical connection is provided which applies even pressure across the circuit element, but which also has a low dielectric constant. Such a connector includes syntactic foam produced by adding hollow microspheres, such as glass or silica microspheres, to an elastomer.
Inventors
- 👤 Vincent R. Landi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:02
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/50; H01R12/59; H01R12/61; H05; H05K; H05K3/00; H05K3/36; H05K3/361; H05K3/365; H01R12/51; H01R12/55; H01R12/57; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49194; Y10T29/49201; Y10T29/49202
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
65 words
In a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: means for providing gradated impedance to said solderless connector, said means for providing gradated impedance including; said elastomeric element having a preselected shape whereby the dielectric constant of said elastomeric element is varied when said elastomeric element is compressed.
Claim 2
Dependent Claim
65 words
In a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: means for providing gradated impedance to said solderless connector, said means for providing gradated impedance including; said elastomeric element having a preselected shape whereby the dielectric constant of said elastomeric element is varied when said elastomeric element is compressed.
Claim 3
Dependent Claim
18 words
The solderless connector of claim 1 wherein: said preselected shape of said elastomeric element is a wedge shape.
Claim 4
Dependent Claim
16 words
The solderless connector of claim 1 wherein: said elastomeric element is a highly compressible cellular foam.
Claim 5
Dependent Claim
15 words
The solderless connector of claim 1 wherein: said elastomeric element is a filled polymeric foam.
Claim 6
Dependent Claim
69 words
In a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: means for providing minimized impedance to said solderless connector, said means for providing minimized impedance including; said elastomeric element being formed of slightly compressible syntactic foam whereby said slightly compressible syntactic foam has a low dielectric constant relative to highly compressible cellular foam.
Claim 7
Dependent Claim
69 words
In a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: means for providing minimized impedance to said solderless connector, said means for providing minimized impedance including; said elastomeric element being formed of slightly compressible syntactic foam whereby said slightly compressible syntactic foam has a low dielectric constant relative to highly compressible cellular foam.
Claim 8
Dependent Claim
21 words
The solderless connector of claim 5 wherein: said slightly compressible syntactic foam is comprised of elastomeric material having hollow microspheres therein.
Claim 9
Dependent Claim
15 words
The solderless connector of claim 6 wherein: said hollow microspheres are glass or silica microspheres.
Claim 10
Dependent Claim
38 words
The solderless connector of claim 5 wherein: said elastomeric element has first and second layers and wherein said first layer is comprised of slightly compressible syntactic foam and said second layer is comprised of highly compressible cellular foam.
Claim 11
Dependent Claim
19 words
The solderless connector of claim 8 wherein: said syntactic foam is comprised of elastomeric material having hollow microspheres therein.
Claim 12
Dependent Claim
15 words
The solderless connector of claim 9 wherein: said hollow micrspheres are glass or silica microspheres.
Claim 13
Dependent Claim
60 words
In a method of making a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: shaping said elastomeric element so as to vary the dielectric constant of said elastomeric element when said elastomeric element is compressed wherein said solderless connector is provided with gradated impedance.
Claim 14
Dependent Claim
60 words
In a method of making a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: shaping said elastomeric element so as to vary the dielectric constant of said elastomeric element when said elastomeric element is compressed wherein said solderless connector is provided with gradated impedance.
Claim 15
Dependent Claim
14 words
The method of claim 11 including: shaping said elastomeric element into a wedge shape.
Claim 16
Dependent Claim
15 words
The method of claim 11 wherein: said elastomeric element is a highly compressible cellular foam.
Claim 17
Dependent Claim
14 words
The method of claim 11 wherein: said elastomeric element is a filled polymeric foam.
Claim 18
Dependent Claim
65 words
In a method of making a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: forming said elastomeric element of slightly compressible syntactic foam wherein said slightly compressible foam has a low dielectric constant relative to highly compressible cellular foam and whereby said solderless connector is provided with minimized impedance.
Claim 19
Dependent Claim
65 words
In a method of making a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: forming said elastomeric element of slightly compressible syntactic foam wherein said slightly compressible foam has a low dielectric constant relative to highly compressible cellular foam and whereby said solderless connector is provided with minimized impedance.
Claim 20
Dependent Claim
19 words
The method of claim 15 including: forming said slightly compressible syntactic foam from elastomeric material having hollow microspheres therein.
Claim 21
Dependent Claim
14 words
The method of claim 16 wherein: said hollow microspheres are glass or silica microspheres.
Claim 22
Dependent Claim
38 words
The method of claim 15 including: forming first and second layers in said elastomeric element wherein said first layer is comprised of said slightly compressible syntactic foam and said second layer is comprised of highly compressible cellular foam.
Claim 23
Dependent Claim
17 words
The method of claim 18 including: forming said syntactic foam from elastomeric material having hollow microspheres therein.
Claim 24
Dependent Claim
14 words
The method of claim 19 wherein: said hollow microspheres are glass of silica microspheres.
Claim 25
Dependent Claim
45 words
In a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: said elastomeric element including means for providing gradated change in impedance between said circuit devices and said solderless connector.
Claim 26
Dependent Claim
45 words
In a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: said elastomeric element including means for providing gradated change in impedance between said circuit devices and said solderless connector.
Claim 27
Dependent Claim
39 words
The solderless connector of claim 21 wherein said means for providing gradated change in impedance includes: said elastomeric element having a preselected shape whereby the dielectric constant of said elastomeric element is varied when said elastomeric element is compressed.
Claim 28
Dependent Claim
18 words
The solderless connector of claim 22 wherein: said preselected shape of said elastomeric element is a wedge shape.
Claim 29
Dependent Claim
16 words
The solderless connector of claim 21 wherein: said elastomeric element is a highly compressible cellular foam.
Claim 30
Dependent Claim
15 words
The solderless connector of claim 21 wherein: said elastomeric element is a filled polymeric foam.
Claim 31
Dependent Claim
38 words
The solderless connector of claim 21 wherein said means for providing gradated change in impedance includes: said elastomeric element having a preselected shape whereby the compression along said elastomeric element is varied when said elastomeric element is compressed.
Claim 32
Dependent Claim
49 words
In a method of making a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: providing said elastomeric element with means for gradating change in impedance between said solderless connector and said circuit devices.
Claim 33
Dependent Claim
49 words
In a method of making a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: providing said elastomeric element with means for gradating change in impedance between said solderless connector and said circuit devices.
Claim 34
Dependent Claim
35 words
The method of claim 27 wherein said means for gradating impedance is provided by: shaping said elastomeric element so as to vary the dielectric constant of said elastomeric element when said elastomeric element is compressed.
Claim 35
Dependent Claim
12 words
The method of claim 28 wherein: said elastomeric element is wedge shaped.
Claim 36
Dependent Claim
15 words
The method of claim 27 wherein: said elastomeric element is a highly compressible cellular foam.
Claim 37
Dependent Claim
14 words
The method of claim 27 wherein: said elastomeric element is a filled polymeric foam.
Claim 38
Dependent Claim
34 words
The method of claim 27 wherein said means for gradating impedance is providing by: shaping said elastomeric element so as to vary the compression along said elastomeric element when said elastomeric element is compressed.
Claim 39
Dependent Claim
45 words
In a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: said elastomeric element including means for providing minimized change in impedance between said circuit devices and said solderless connector.
Claim 40
Dependent Claim
45 words
In a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: said elastomeric element including means for providing minimized change in impedance between said circuit devices and said solderless connector.
Claim 41
Dependent Claim
42 words
The solderless connector of claim 33 wherein said means for providing gradated change in impedance includes: said elastomeric element being formed of slightly compressible syntactic foam wherein said slightly compressible syntactic foam has a low dielectric relative to highly compressible cellular foam.
Claim 42
Dependent Claim
49 words
In a method of making a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: providing said elastomeric element with means for minimizing change in impedance between said solderless connector and said circuit devices.
Claim 43
Dependent Claim
49 words
In a method of making a solderless connector wherein mechanical means applies force against an elastomeric element to effect electrical contact between terminal portions of circuit devices, the improvement comprising: providing said elastomeric element with means for minimizing change in impedance between said solderless connector and said circuit devices.
Claim 44
Dependent Claim
50 words
The method of claim 35 wherein said means for minimizing change in impedance is provided by: forming said elastomeric element of slightly compressible syntactic foam wherein said slightly compressible foam has a low dielectric constant relative to highly compressible cellular foam wherein said solderless connector is provided with minimized impedance.
References Cited (Backward Citations)
US3612744A
Cited
US3643201A
Cited
US3651432A
Cited
US4468074A
Cited
US4382236A
Cited
US4443657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-08 | 1990-03-10 | 1990-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-08 | 1994-03-10 | 1994-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-08 | 1998-03-10 | 1998-09-09 | $7700.00 | Window Closed / Lapsed |