Patent FR410739A successfully refreshed from Google Patents.
Patent US3622724A successfully refreshed from Google Patents.
US3622724A
Expired / Lapsed
US
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Vacuum-type circuit interrupter having contacts with improved arc-revolving means
Assignee: General Electric Co
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Filing: 1970-02-24
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Granted: 1971-11-23
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Expires: 1990-02-24
Abstract
Abstract Discloses a vacuum-type circuit interrupter in which the contacts are constructed to revolve any arc located between the contacts. Each contact is a disc-shaped member divided into a plurality of circumferentially spaced segments, each comprising a radially extending body portion and a leg portion at the radially outer end of the body portion extending periphery of the discshaped member. Each leg portion is provided with an arc-running extension that extends peripherally of the disc-shaped member and overlaps the adjacent segment on the side of the adjacent segment facing the other contact.
Inventors
- 👤 Joseph C Sofianek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:32
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/664; H01H33/6644
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
197 words
In a vacuum-type circuit interrupter comprising a highly evacuated envelope and a pair of electrodes within said envelope defining an arcing gap therebetween, one of said electrodes comprising: a. a disc-shaped member of conductive material comprising a plurality of circumferentially spaced segments, b. each segment including a radially extending body portion and a leg portion at the radially outer end of said body portion extending peripherally of said disc-shaped member, each of said peripherally extending leg portions extending from its associated body portion in the same angular direction, c. arc-running extensions of said peripherally extending leg portions extending peripherally of said disc-shaped member, each of said extensions being joined to its associated segment near the distal end of the peripherally extending leg portion of said associated segment and extending in overlapping relationship with respect to the adjacent segment adjacent said distal end on the side of said adjacent segment facing said arcing gap, d. and means for forcing most of the current flowing into any extension on which an arc is located to flow through the discshaped member via the particular segment to which said extension is joined at the distal end of the segment''s leg portion.
Claim 2
Dependent Claim
197 words
In a vacuum-type circuit interrupter comprising a highly evacuated envelope and a pair of electrodes within said envelope defining an arcing gap therebetween, one of said electrodes comprising: a. a disc-shaped member of conductive material comprising a plurality of circumferentially spaced segments, b. each segment including a radially extending body portion and a leg portion at the radially outer end of said body portion extending peripherally of said disc-shaped member, each of said peripherally extending leg portions extending from its associated body portion in the same angular direction, c. arc-running extensions of said peripherally extending leg portions extending peripherally of said disc-shaped member, each of said extensions being joined to its associated segment near the distal end of the peripherally extending leg portion of said associated segment and extending in overlapping relationship with respect to the adjacent segment adjacent said distal end on the side of said adjacent segment facing said arcing gap, d. and means for forcing most of the current flowing into any extension on which an arc is located to flow through the discshaped member via the particular segment to which said extension is joined at the distal end of the segment''s leg portion.
Claim 3
Dependent Claim
30 words
The structure of claim 1 in which each of said extensions extends peripherally of said disc-shaped member past the radially extending body portion of the segment overlapped by said extension.
Claim 4
Dependent Claim
51 words
The structure of claim 1 in which each of said extensions is supported on the segment overlapped thereby by means comprising a spacer interposed between said extension and said overlapped segment, said spacer being of a material that has a higher resistivity than the material of said segment and said extension.
Claim 5
Dependent Claim
24 words
The circuit interrupter of claim 1 in which each of said segments is of a generally L-shaped configuration, as viewed from said arcing gap.
Claim 6
Dependent Claim
37 words
The structure of claim 1 in further combination with: a. means for initiating an arc at a location radially inwardly of said peripherally extending extensions, b. and means for propelling said arc radially outwardly onto said extensions.
Claim 7
Dependent Claim
78 words
The structure of claim 1 in further combination with: a. means for initiating an arc at a location radially inwardly of said peripherally extending extensions comprising a contact-making button having a generally annular contact-making portion supported on the body portions of said segments, b. and means for propelling said arc radially outwardly onto said extensions comprising means for causing the major current path through said contact-making button via said contact-making portion to extend in a radially outward direction.
Claim 8
Dependent Claim
60 words
The electrode structure of claim 1 in which said peripherally extending extensions form a generally annular arc-running ring subdivided by circumferentially spaced discontinuities between said extensions, said discontinuities being located at points circumferentially spaced from the body portions of said segments, each extension extending peripherally of said disc member past the body portion of the segment overlapped by said extension.
Claim 9
Dependent Claim
83 words
The structure of claim 1 in which: a. said peripherally extending extensions form a generally annular arc-running ring subdivided by circumferentially spaced discontinuities between said extensions, and b. said extensions each have a peripheral lip extending axially of said electrode away from the arcing gap in a position radially spaced from the outer periphery of the segment overlapped by said extension, c. said lips collectively forming a generally annular flange substantially surrounding the outer periphery of said disc-shaped member and radially spaced therefrom.
Claim 10
Dependent Claim
68 words
The structure of claim 1 in which: a. said peripherally extending extensions form a generally annular arc-running riNg subdivided by circumferentially spaced discontinuities between said extensions, b. a generally annular contact-making button is provided radially inwardly of said annular arc-running ring on which arcs are initiated, c. and means is provided for preventing a low resistance conductive path from being formed through said button between said arc-running extensions.
Claim 11
Dependent Claim
36 words
The structure of claim 9 in which the means for preventing said low-resistance path from being formed comprises a space between the outer periphery of said contact-making button and the inner periphery of said arc-running ring.
Claim 12
Dependent Claim
55 words
The structure of claim 1 in which: a. said peripherally extending extensions form a generally annular arc-running ring subdivided by circumferentially spaced discontinuities between said extensions, and b. the body portion of any segment through which the major portion of the current flows to an arc on any extension is circumferentially displaced from said extension.
Claim 13
Dependent Claim
65 words
The structure of claim 1 in which: a. said peripherally extending extensions form a generally annular arc-running ring subdivided by circumferentially spaced discontinuities between said extensions, b. and the major current path through said electrode structure to an arc at any location on said annular arc-running ring extends radially outward through said electrode structure at a location which is maintained circumferentially displaced from said arc.
Claim 14
Dependent Claim
50 words
The structure of claim 3 in which at least one of said spacers has a neck portion of reduced cross-sectional area between its ends for increasing the resistance of said spacer without decreasing the area available at the ends of the spacer for bonding the spacer to juxtaposed electrode structure.
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |