US3876280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric terminator comprising one-piece bimetallic connector and method for making such connector
Assignee: Coatings Inc
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Filing: 1973-10-02
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Granted: 1975-04-08
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Expires: 1993-10-02
Abstract
Abstract An elbow-type loadbreak/deadbreak terminator or bushing for electrically connecting an insulated aluminum conductor wire to a copper terminal of an electrical device comprises an L-shaped insulated housing having intersecting passages, one of which accommodates a one-piece bimetallic (aluminum-copper) connector and the other of which accommodates a cylindrical copper probe threaded at its inner end. The connector comprises an aluminum portion and a copper portion welded together across their entire interface by an inertia welding process. An opening extends inwardly axially from the end of the aluminum portion of the connector for receiving the bare end of the aluminum wire which is crimped therein. A threaded opening extends inwardly transversely from a side of the copper portion of the connector for receiving the threaded inner end of the copper probe which screws thereinto. A method for making a one-piece bimetallic connector broadly comprises the steps of providing a cylindrical copper blank and a cylindrical aluminum blank, heat treating the aluminum blank, cleaning those faces of the blanks which are be welded, welding the two blanks together by an inertia welding process and machining the joined blanks into a connector of desired shape.
Inventors
- 👤 Benjamin G Jones
- 👤 Richard B Leachy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:54
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/16; H01R4/00; H01R4/58; H01R4/62
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
160 words
In an electrical terminator for connecting a wire to a terminal, said wire and terminal being made of dissimilar metals, a housing having a pair of transverse intersecting passages, a one-piece bimetallic electrically conductive connector in one of said passages and comprising two portions of dissimilar metals, each portion initially having a solid uninterrupted flat end surface and each end surface abutting the other along a common interface, said portions being joined together across their entire interface in a solid state bond, wire connection means on one portion of said connector, said one portion being made of the same metal as said wire, probe connection means on the other portion of said connector, and an electrically conductive probe in said other passage connected to said probe connection means of said connector, that portion of said probe connected to said connector being of the same metal as said terminal and as that portion of said connector to which it is connected.
Claim 2
Dependent Claim
160 words
In an electrical terminator for connecting a wire to a terminal, said wire and terminal being made of dissimilar metals, a housing having a pair of transverse intersecting passages, a one-piece bimetallic electrically conductive connector in one of said passages and comprising two portions of dissimilar metals, each portion initially having a solid uninterrupted flat end surface and each end surface abutting the other along a common interface, said portions being joined together across their entire interface in a solid state bond, wire connection means on one portion of said connector, said one portion being made of the same metal as said wire, probe connection means on the other portion of said connector, and an electrically conductive probe in said other passage connected to said probe connection means of said connector, that portion of said probe connected to said connector being of the same metal as said terminal and as that portion of said connector to which it is connected.
Claim 3
Dependent Claim
50 words
A terminator according to claim 1 wherein said wire connection means comprises a wire receiving opening extending inwardly into said one portion from an end of said connector and wherein said probe connection means comprises an opening extending laterally inwardly from a side of the other portion of said connector.
Claim 4
Dependent Claim
28 words
A terminator according to claim 2 wherein the opening comprised in said probe connection means is threaded and wherein said portion of said probe connected thereto is threaded.
Claim 5
Dependent Claim
25 words
A terminator according to claim 3 wherein said one portion of said connector is aluminum and wherein the other portion of said connector is copper.
Claim 6
Dependent Claim
17 words
A terminator according to claim 4 wherein said portions are joined together in a solid state bond.
Claim 7
Dependent Claim
122 words
In an electrical terminator for connecting an aluminum wire to a copper terminal: a housing having a pair of transverse intersecting passages; a one-piece electrically conductive connector in one of said passages and comprising an aluminum portion and a copper portion, each portion initially having a solid uninterrupted flat end surface and each end surface abutting the other along a common interface, said portions being joined together across their entire interface in a solid state bond; wire connection means on said aluminum portion of said connector for attachment to said aluminum wire; probe connection means on said copper portion of said connector, and an electrically conductive copper probe in said other passage for connection to said probe connection means on said connector.
Claim 8
Dependent Claim
122 words
In an electrical terminator for connecting an aluminum wire to a copper terminal: a housing having a pair of transverse intersecting passages; a one-piece electrically conductive connector in one of said passages and comprising an aluminum portion and a copper portion, each portion initially having a solid uninterrupted flat end surface and each end surface abutting the other along a common interface, said portions being joined together across their entire interface in a solid state bond; wire connection means on said aluminum portion of said connector for attachment to said aluminum wire; probe connection means on said copper portion of said connector, and an electrically conductive copper probe in said other passage for connection to said probe connection means on said connector.
Claim 9
Dependent Claim
50 words
A terminator according to claim 6 wherein said wire connection means comprises a wire receiving opening extending inwardly into said one portion from an end of said connector and wherein said probe connection means comprises an opening extending laterally inwardly from a side of the other portion of said connector.
Claim 10
Dependent Claim
28 words
A terminator according to claim 7 wherein the opening comprised in said probe connection means is threaded and wherein said portion of said probe connected thereto is threaded.
Claim 11
Dependent Claim
17 words
A terminator according to claim 8 wherein said portions are joined together in a solid state bond.
Claim 12
Dependent Claim
190 words
In an elbow type electrical terminator for connecting an aluminum wire to a copper terminal: an insulating housing having a pair of transverse intersecting passages; a one-piece electrically conductive connector removably mounted in one of said passages and comprising an aluminum portion and a copper portion, each portion initially having a solid uninterrupted flat end surface and each end surface abutting the other along a commonn interface, said portions being joined together across their entire interface in a solid state bond; wire connecting means on said aluminum portion of said connector for attachment to said aluminum wire, said wire connection means comprising a wire receiving opening extending axially inwardly of said aluminum portion from an end of said connector and further comprising a crimpable wall portion adjacent said wire receiving opening; probe connection means on said copper portion of said connector, said probe connection means comprising a probe receiving opening extending laterally inwardly from a side of said copper portion of said connector; and an electrically conductive probe mounted in the other of said passages and having a copper portion for engagement with said probe receiving opening in said connector.
Claim 13
Dependent Claim
190 words
In an elbow type electrical terminator for connecting an aluminum wire to a copper terminal: an insulating housing having a pair of transverse intersecting passages; a one-piece electrically conductive connector removably mounted in one of said passages and comprising an aluminum portion and a copper portion, each portion initially having a solid uninterrupted flat end surface and each end surface abutting the other along a commonn interface, said portions being joined together across their entire interface in a solid state bond; wire connecting means on said aluminum portion of said connector for attachment to said aluminum wire, said wire connection means comprising a wire receiving opening extending axially inwardly of said aluminum portion from an end of said connector and further comprising a crimpable wall portion adjacent said wire receiving opening; probe connection means on said copper portion of said connector, said probe connection means comprising a probe receiving opening extending laterally inwardly from a side of said copper portion of said connector; and an electrically conductive probe mounted in the other of said passages and having a copper portion for engagement with said probe receiving opening in said connector.
Claim 14
Dependent Claim
22 words
A terminator according to claim 10 wherein said crimpable wall portion adjacent said wire receiving opening completely surrounds said wire receiving opening.
Claim 15
Dependent Claim
23 words
A terminator according to claim 10 wherein said probe receiving opening is threaded and wherein said copper portion of said probe is threaded.
Claim 16
Dependent Claim
11 words
A terminator according to claim 12 wherein said connector is cylindrical.
Claim 17
Dependent Claim
37 words
A terminator according to claim 13 wherein said copper portion of said connector is provided with at least one flat surface on a side thereof and wherein said probe receiving opening extends inwardly from said flat surface.
Claim 18
Dependent Claim
35 words
A terminator according to claim 14 wherein said copper portion of said connector is provided with flat surfaces on two opposite sides thereof and wherein said probe receiving opening extends between both said flat surfaces.
Claim 19
Dependent Claim
105 words
In a connector for an electrical terminator: a one-piece body comprising two portions of electrically conductive dissimilar metals, each portion initially having a solid uninterrupted flat end surface and each end surface abutting the other along a common interface, said portions being joined together across said entire interface in a solid state bond, wire connection means comprising a wire receiving first opening extending axially inwardly of one of said portions from an end face of said body, and probe connection means comprising a second opening extending inwardly of a side of the other of said portions, said second opening being transverse to said first opening.
Claim 20
Dependent Claim
105 words
In a connector for an electrical terminator: a one-piece body comprising two portions of electrically conductive dissimilar metals, each portion initially having a solid uninterrupted flat end surface and each end surface abutting the other along a common interface, said portions being joined together across said entire interface in a solid state bond, wire connection means comprising a wire receiving first opening extending axially inwardly of one of said portions from an end face of said body, and probe connection means comprising a second opening extending inwardly of a side of the other of said portions, said second opening being transverse to said first opening.
Claim 21
Dependent Claim
12 words
A connector according to claim 16 wherein said second opening is threaded.
Claim 22
Dependent Claim
17 words
A connector according to claim 17 wherein said first opening is surrounded by a crimpable wall portion.
Claim 23
Dependent Claim
18 words
A connector according to claim 18 wherein said one portion is aluminum and said other portion is copper.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |