Patent US3477167A successfully refreshed from Google Patents.
US4034471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of isolating bonding material on a terminal plate
Assignee: AT&T Inc
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Filing: 1976-05-03
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Granted: 1977-07-12
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Expires: 1996-05-03
Abstract
Abstract A circuit component having a solder connection and screw-clamp terminal connection is formed from brass, solder-coated coiled stock with a portion of the brass exposed to separate the solder connection from the area of the screw connection in order to block the molten solder from migrating into the screw connection. The screw connection is cold-formed with radially-oriented, inwardly-sloping projections or fins arranged around a central threaded opening to engage the tines of a terminal lug as it is screw-clamped in place. The radial projections or fins, by being cold-formed, are work-hardened and bite into the U-shaped tines of the terminal lug as the screw is tightened. This prevents the terminal lug from turning as the screw descends and clamps the terminal in place. The inward slope of the projections or fins cams the tines of the terminal lug towards the screw threads, thus preventing the tines from splaying outwardly.
Inventors
- 👤 Eugene E. Bias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:59
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/02; H01R4/028; H01R12/00; H01R12/50; H01R12/51; H01R12/53; H01R4/28; H01R4/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49147; Y10T29/49174; Y10T29/49181; Y10T29/49185; Y10T29/49204; Y10T29/49224
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
76 words
A method of blocking the flow of a bonding material tending to flow to a path toward an area on an article; comprising: making the article of a base material repellent to the bonding material; covering the article with a coating material receptive to the bonding material; and deforming the repellent material and rupturing the recepting coating material to expose underlying repellent material and block the path of flow of the bonding material toward the area.
Claim 2
Independent Claim
76 words
A method of blocking the flow of a bonding material tending to flow to a path toward an area on an article; comprising: making the article of a base material repellent to the bonding material; covering the article with a coating material receptive to the bonding material; and deforming the repellent material and rupturing the recepting coating material to expose underlying repellent material and block the path of flow of the bonding material toward the area.
Claim 3
Dependent Claim
32 words
A method according to claim 1 wherein the exposing step is accomplished by raising repellent material above the receptive material to form a barrier in the path of flow of bonding material.
Claim 4
Independent Claim
76 words
A method of making a component having a barrier to the migration of molten solder toward an area on the component, comprising: coating with solder a material that is repellent to solder when unfluxed; and ductily forming the material to the shape of the component while simultaneously shearing the material at the location of the barrier to expose the repellent material and form a barrier of repellent material to the flow of material toward the area.
Claim 5
Independent Claim
76 words
A method of making a component having a barrier to the migration of molten solder toward an area on the component, comprising: coating with solder a material that is repellent to solder when unfluxed; and ductily forming the material to the shape of the component while simultaneously shearing the material at the location of the barrier to expose the repellent material and form a barrier of repellent material to the flow of material toward the area.
Claim 6
Dependent Claim
58 words
A method of making a component according to claim 3 wherein the shearing operation exposes the repellent material on a side of the component whereon soldering principally takes place and also exposes the repellent material on the peripheral edges of the component, so as to form a barrier to solder migrating to said opposite side of the component.
Claim 7
Dependent Claim
65 words
A method according to claim 4 wherein the exposed, repellent material on the side of the component where soldering principally takes place and the exposed repellent material on the opposite side of the component are displaced along the component so as to avoid minimizing the distance between the two areas of exposed repellent material thereby minimizing the likelihood of weakening the structure of the component.
Claim 8
Dependent Claim
28 words
A method according to claim 3 wherein the shearing operation also exposes repellent material at a second location to form a successive barrier to the flow of solder.
Claim 9
Independent Claim
78 words
A method of protecting an area on article from a flow of bonding material wherein the article is constructed of a material that is repellent to the flow of bonding material and the article is surface coated with a layer of bonding material, which comprises: cold forming the article to extend the coated surface to break the coated surface and expose a barrier surface about the area to prevent the flow of bonding material into the protected area.
Claim 10
Independent Claim
78 words
A method of protecting an area on article from a flow of bonding material wherein the article is constructed of a material that is repellent to the flow of bonding material and the article is surface coated with a layer of bonding material, which comprises: cold forming the article to extend the coated surface to break the coated surface and expose a barrier surface about the area to prevent the flow of bonding material into the protected area.
Claim 11
Dependent Claim
32 words
A method as defined in claim 7 wherein the article is cold formed to break the surface to expose a second barrier surface between the first barrier surface and the protected area.
Claim 12
Dependent Claim
36 words
A method as defined in claim 7 wherein a hole is formed in the area and a plurality of radiating fins are cold formed to extend outwardly and upwardly from the hole toward the barrier surface.
Claim 13
Dependent Claim
132 words
In a method of making adjacent solder free and solder wire connections to a terminal plate coated with solder, wherein the terminal plate is made of material that is repellent to solder in the liquid state: forming a wire receiving hole in the terminal plate; forming a wire fastener receiving hole in the terminal plate, said fastener receiving hole being adjacent to the wire receiving hole so that liquid solder applied to the solder coating about the wire receiving hole would normally flow into the wire fastener receiving hole; and cold forming the article and shearing the solder coating to provide a ring extending about the wire fastener receiving hole which has a peripheral barrier surface free of coated solder to repel the normal flow of solder into the fastener receiving hole.
Claim 14
Dependent Claim
132 words
In a method of making adjacent solder free and solder wire connections to a terminal plate coated with solder, wherein the terminal plate is made of material that is repellent to solder in the liquid state: forming a wire receiving hole in the terminal plate; forming a wire fastener receiving hole in the terminal plate, said fastener receiving hole being adjacent to the wire receiving hole so that liquid solder applied to the solder coating about the wire receiving hole would normally flow into the wire fastener receiving hole; and cold forming the article and shearing the solder coating to provide a ring extending about the wire fastener receiving hole which has a peripheral barrier surface free of coated solder to repel the normal flow of solder into the fastener receiving hole.
Claim 15
Dependent Claim
73 words
In a method as defined in claim 9, the further steps of: cold forming a plurality of fins which radiate from the fastener receiving hole and extend outwardly and upwardly toward the barrier surface; placing a U-shaped terminal lug on the article with tines, overlying the fins; moving a shank of a headed fastener into the hole to move the headed fastener against the tines to cam inwardly the tines toward the shrank.
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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) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |