US3813639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connection for high voltage electrical systems
Assignee: TDK Micronas GmbH
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Filing: 1972-03-27
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Granted: 1974-05-28
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Expires: 1992-03-27
Abstract
Abstract Disclosed is a non-vented electrical connector designed to mate with a connection to a transformer or the like in a primary power distribution system. The connector will mate with and make electrical connection with a load break terminator as used in such systems, so that an electrical circuit carrying high currents at elevated voltage levels may be broken in the field without harm to the service personnel making and breaking the connection. The connector has internal members for suppressing the arc generated by high current, high voltage circuit openings and closures. In addition, the connector has internal structure for rapidly condensing and diffusing gases formed within the connector by an arc. In this way, the gas pressure developed in the connector is relieved to prevent pressure blowouts of the terminator. The gas condensing structure shown includes further, a multiple thickness tubular screen, which may be comprised of a length of fine mesh screen coiled into a tubular form. In addition, the connector has an internal scraping member which contacts the arc follower and removes surface contaminants to prevent such contaminants from adding to an arc and to prevent secondary arcing due to the presence of such contaminants in the path of an arc.
Inventors
- 👤 G Schurter
- 👤 Luca C De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:02
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/53
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
199 words
A connector for receiving a load break terminator having a central conductive electrode, said connector comprising an electrode for receiving said terminator electrode through an open face at one end of said connector and for engaging said terminator electrode to complete a current transmitting path therebetween, a conductive body in said connector for completing a heavy power transmitting path from said receiving electrode to a connecting member at the remote end of said connector, a housing surrounding said conductive body to enclose said conductive body and produce an otherwise cLosed cavity therein, an arc suppressant member adjacent the open face of said connector for receiving said terminator electrode prior to entry and after removal of the terminator electrode from the receiving electrode, said body, including a sidewall tapering from said open face end to produce a flow path of successively increasing section, a pressure relieving member within said conductive body cavity, said relieving member comprising a tubular member of mesh screen, means positioning said member said body cavity substantially concentrically within said flow path adjacent said remote end to receive and condense a pressure wave generated by an arc during entry or removal of said terminator from said connector.
Claim 2
Dependent Claim
199 words
A connector for receiving a load break terminator having a central conductive electrode, said connector comprising an electrode for receiving said terminator electrode through an open face at one end of said connector and for engaging said terminator electrode to complete a current transmitting path therebetween, a conductive body in said connector for completing a heavy power transmitting path from said receiving electrode to a connecting member at the remote end of said connector, a housing surrounding said conductive body to enclose said conductive body and produce an otherwise cLosed cavity therein, an arc suppressant member adjacent the open face of said connector for receiving said terminator electrode prior to entry and after removal of the terminator electrode from the receiving electrode, said body, including a sidewall tapering from said open face end to produce a flow path of successively increasing section, a pressure relieving member within said conductive body cavity, said relieving member comprising a tubular member of mesh screen, means positioning said member said body cavity substantially concentrically within said flow path adjacent said remote end to receive and condense a pressure wave generated by an arc during entry or removal of said terminator from said connector.
Claim 3
Dependent Claim
21 words
A connector as claimed in claim 1, wherein said tubular member comprises a metallic, mesh screen wound spirally into tubular form.
Claim 4
Dependent Claim
25 words
A connector as claimed in claim 1, wherein said tubular member is fabricated of a sheet of fine mesh copper screening configured into tubular form.
Claim 5
Dependent Claim
22 words
A connector as claimed in claim 1, wherein said tubular member comprises a copper mesh screen tube plated with a transition metal.
Claim 6
Dependent Claim
18 words
A connector as claimed in claim 3, wherein said tubular member comprises a nickel-plated sheet of screen material.
Claim 7
Dependent Claim
18 words
A connector as claimed in claim 3, wherein said tubular member comprises a platinum-plated sheet of screen material.
Claim 8
Dependent Claim
18 words
A connector as claimed in claim 3, wherein said tubular member comprises a palladium-plated sheet of screen material.
Claim 9
Dependent Claim
53 words
A connector as claimed in claim 1, wherein there is interposed between said connector and said tubular member a tubular scraping edge of dielectric material axially aligned in said cavity to engage the arc follower in surface contact therewith, and a surface positioned to deposit material scraped from said follower adjacent said screen.
Claim 10
Dependent Claim
208 words
A receiving connector for a load break terminator having a central conductive, rod-shaped electrode with an arc follower at the exposed end thereof, said connector comprising an annular receiving electrode for receiving said terminator electrode through an open face at one end of said connector and for engaging said terminator electrode to complete a current transmitting path between said electrodes, a conductive body in said connector for completing a heavy power transmitting path from said receiving electrode to a connecting member at the remote end of said bushing, a housing surrounding said conductive body to enclose said conductive body and produce an otherwise closed cavity therein, an arc suppressant member adjacent the open face of said connector for receiving said terminator electrode prior to entry and after removal of the terminator electrode from the receiving electrode, and a pressure relieving member within said conductive body cavity, and a scraping member disposed coaxially of said receiving electrode, means mounting said scraping member inwardly of said receiving electrode in position to engage said terminator electrode and follower, said scraping member comprising a ring sized to interferingly receive the arc follower and scrape materials therefrom, said scraper member tapered from said ring to deposit scraped materials rearwardly of said receiving electrode.
Claim 11
Dependent Claim
208 words
A receiving connector for a load break terminator having a central conductive, rod-shaped electrode with an arc follower at the exposed end thereof, said connector comprising an annular receiving electrode for receiving said terminator electrode through an open face at one end of said connector and for engaging said terminator electrode to complete a current transmitting path between said electrodes, a conductive body in said connector for completing a heavy power transmitting path from said receiving electrode to a connecting member at the remote end of said bushing, a housing surrounding said conductive body to enclose said conductive body and produce an otherwise closed cavity therein, an arc suppressant member adjacent the open face of said connector for receiving said terminator electrode prior to entry and after removal of the terminator electrode from the receiving electrode, and a pressure relieving member within said conductive body cavity, and a scraping member disposed coaxially of said receiving electrode, means mounting said scraping member inwardly of said receiving electrode in position to engage said terminator electrode and follower, said scraping member comprising a ring sized to interferingly receive the arc follower and scrape materials therefrom, said scraper member tapered from said ring to deposit scraped materials rearwardly of said receiving electrode.
Claim 12
Dependent Claim
17 words
A connector as claimed in claim 9, wherein said scraper ring is fabricated of dielectric, arc-suppressant material.
Claim 13
Dependent Claim
209 words
A receiving connector for a load break terminator having a central conductive electrode, said connector comprising an electrode for receiving said terminator electrode through an open face at one end of said connector and for engaging said terminator electrode to complete a current transmitting path therebetween, a conductive body in said connector for completing a heavy power transmitting path from said receiving electrode to connecting member at the remote end of said connector, a housing surrounding said conductive body to enclose said conductive body and produce an otherWise closed and walled cavity therein, an arc snuffing member adjacent the open face of said connector for receiving said terminator electrode prior to entry and after removal of the terminator electrode from the receiving electrode, the walls of said cavity positioned to channel a pressure wave generated by an arc toward said remote end during entry or removal of said terminator from said connector, and means within said conductive body cavity for condensing and diffusing a pressure wave, said last-mentioned means comprising a contoured member contained inwardly of the axial extension of the walls of the cavity and extending into said cavity from said remote end within the path of the pressure wave to diffuse the generated pressure wave channelled thereto.
Claim 14
Dependent Claim
209 words
A receiving connector for a load break terminator having a central conductive electrode, said connector comprising an electrode for receiving said terminator electrode through an open face at one end of said connector and for engaging said terminator electrode to complete a current transmitting path therebetween, a conductive body in said connector for completing a heavy power transmitting path from said receiving electrode to connecting member at the remote end of said connector, a housing surrounding said conductive body to enclose said conductive body and produce an otherWise closed and walled cavity therein, an arc snuffing member adjacent the open face of said connector for receiving said terminator electrode prior to entry and after removal of the terminator electrode from the receiving electrode, the walls of said cavity positioned to channel a pressure wave generated by an arc toward said remote end during entry or removal of said terminator from said connector, and means within said conductive body cavity for condensing and diffusing a pressure wave, said last-mentioned means comprising a contoured member contained inwardly of the axial extension of the walls of the cavity and extending into said cavity from said remote end within the path of the pressure wave to diffuse the generated pressure wave channelled thereto.
Claim 15
Dependent Claim
21 words
A connector as claimed in claim 11, wherein said snuffing member comprises a tubular member of polyoxymethylene with structural filler material.
Claim 16
Dependent Claim
17 words
A connector as claimed in claim 12, wherein said structural filler material is a glass fiber filler.
Claim 17
Dependent Claim
14 words
A connector as claimed in claim 11, wherein said glass fiber filler is borosilicate.
Claim 18
Dependent Claim
34 words
A connector as claimed in claim 11, wherein said condensing and diffusing means comprises an enlargement in said cavity with an inner diameter at least twice that of the bore of said snuffing member.
Claim 19
Dependent Claim
30 words
A connector as claimed in claim 15, wherein said condensing and diffusing means comprises a configured end face of said cavity confronting any pressure wave generated in said connector cavity.
References Cited (Backward Citations)
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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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |