Patent US4236776A successfully refreshed from Google Patents.
US4236776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical contact with improved means for solder wicking and degassing
Assignee: ABB Installation Products International LLC
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Filing: 1978-08-24
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Granted: 1980-12-02
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Expires: 1998-08-24
Abstract
Abstract An electrical contact adapted to be mounted in a plated-through hole and having means to improve solder wicking and degassing. A conical transitional surface between the bottom of the contact body and the solder tail is provided with a plurality of projecting ribs. When inserted in a plated-through hole, because the body is larger than the hole, the ribs rest on the rim of the hole and provide degassing paths between them. The contact may be mounted individually in electrical panel boards, or in arrays in insulators wherein the contacts receive the leads of dual-in-line packages or other electronic components.
Inventors
- 👤 Roger D. Wellington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:47
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/306; H05K3/308; H01; H01R; H01R12/00; H01R12/70; H01R12/71; H01R12/712; H01R12/716; H01R12/718; H01R4/00; H01R4/02; H01R4/028
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
168 words
An insulative socket comprising: a rectangular insulative body having two spaced parallel rows of holes therethrough; a plurality of socket contacts, one of which is secured in each of said holes in said insulative body, each said contact comprising: a cylindrical body having one open end and one closed end; an elongated pin axially projecting from said closed end; a conical transitional surface between said body and said pin; and a plurality of ribs substantially parallel to and projecting outwardly from said transitional surface, said transitional surface and said pin extending outwardly from the bottom surface of said insulative body; said socket contacts mounted in said insulative socket being adapted to be inserted in a dual-in-line array of plated-through holes in an electrical interconnection panel board whereby said ribs of at least some of said socket contacts engage the surface of the rim of the plating material in each corresponding hole, thereby providing escape paths for gases between said ribs and between said transitional surface and said rim.
Claim 2
Dependent Claim
168 words
An insulative socket comprising: a rectangular insulative body having two spaced parallel rows of holes therethrough; a plurality of socket contacts, one of which is secured in each of said holes in said insulative body, each said contact comprising: a cylindrical body having one open end and one closed end; an elongated pin axially projecting from said closed end; a conical transitional surface between said body and said pin; and a plurality of ribs substantially parallel to and projecting outwardly from said transitional surface, said transitional surface and said pin extending outwardly from the bottom surface of said insulative body; said socket contacts mounted in said insulative socket being adapted to be inserted in a dual-in-line array of plated-through holes in an electrical interconnection panel board whereby said ribs of at least some of said socket contacts engage the surface of the rim of the plating material in each corresponding hole, thereby providing escape paths for gases between said ribs and between said transitional surface and said rim.
Claim 3
Dependent Claim
21 words
The insulative socket recited in claim 1 wherein there are at least three said ribs substantially equiangularly spaced around said surface.
Claim 4
Dependent Claim
16 words
The insulative socket recited in claim 1 wherein said elongated pin is a round solder tail.
Claim 5
Dependent Claim
160 words
An electronic interconnection panel board having a plurality of holes therethrough, said panel board comprising: electrically conductive plating material lining said holes thereby effectively reducing their diameters; a plurality of socket contacts, one of which is mounted in at least some of said plated holes in said panel board, each said contact comprising: a cylindrical body having one open end and one closed end; an elongated pin axially projecting from said closed end; a conical transitional surface between said body and said pin; a plurality of ribs substantially parallel to and projecting outwardly from said transitional surface, said pin extending through said plated hole; and solder adhered to said plating material and said elongated pin and substantially filling the space therebetween; whereby said ribs on said transitional surface engage the surface of the rim of the plating material in each of said holes, thereby providing escape paths for gases between said ribs and between said transitional surface and said rim.
Claim 6
Dependent Claim
160 words
An electronic interconnection panel board having a plurality of holes therethrough, said panel board comprising: electrically conductive plating material lining said holes thereby effectively reducing their diameters; a plurality of socket contacts, one of which is mounted in at least some of said plated holes in said panel board, each said contact comprising: a cylindrical body having one open end and one closed end; an elongated pin axially projecting from said closed end; a conical transitional surface between said body and said pin; a plurality of ribs substantially parallel to and projecting outwardly from said transitional surface, said pin extending through said plated hole; and solder adhered to said plating material and said elongated pin and substantially filling the space therebetween; whereby said ribs on said transitional surface engage the surface of the rim of the plating material in each of said holes, thereby providing escape paths for gases between said ribs and between said transitional surface and said rim.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |