Patent US4004117A successfully refreshed from Google Patents.
US4004117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arcing electrode, more particularly for vacuum switches
Assignee: Rockwell Automation Switzerland GmbH
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Filing: 1974-09-18
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Granted: 1977-01-18
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Expires: 1994-09-18
Abstract
Abstract An arcing electrode in accordance with the invention has a number of plates separated by gaps. The plates are shaped with if necessary, additional plates into a receptacle for metal droplets produced by the arc.
Inventors
- 👤 Joachim Amsler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:36
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/664; H01H33/6646
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A contact assembly for a vacuum switch comprising two electrodes facing each other for taking up arc roots, each of said electrodes including a contact stud having a contact surface and a plurality of plates having narrow surfaces facing the opposite electrode, the plates being separated by gaps whose width is equal to at least the thickness of the plate, and further electrode plates intersecting the first said electrode plates at an angle to form a honeycomb structure at least in proximity to the contact surfaces of the nearest contact stud.
Claim 2
Dependent Claim
91 words
A contact assembly for a vacuum switch comprising two electrodes facing each other for taking up arc roots, each of said electrodes including a contact stud having a contact surface and a plurality of plates having narrow surfaces facing the opposite electrode, the plates being separated by gaps whose width is equal to at least the thickness of the plate, and further electrode plates intersecting the first said electrode plates at an angle to form a honeycomb structure at least in proximity to the contact surfaces of the nearest contact stud.
Claim 3
Dependent Claim
35 words
A contact assembly according to claim 1 wherein the first said electrode plates are radially oriented and the said further electrode plates are curved in a circle and are disposed concentrically in the plate assembly.
Claim 4
Dependent Claim
39 words
A contact assembly according to claim 1 wherein the first said electrode plates are disposed parallel to each other and the said further electrode plates are planar and disposed perpendicularly to the first electrode plates in the plate assembly.
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) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |