Patent US4200779A successfully refreshed from Google Patents.
US4200779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for switching electrical circuits
Assignee: MOSCOVSKY INZHENERNO FIZICHESKY INSTITUT
•
Filing: 1978-08-28
•
Granted: 1980-04-29
•
Expires: 1998-08-28
Abstract
Abstract A device for switching a plurality of electrical circuits, each including a group of electrodes separated by insulators and a duct formed by coaxial holes made in the electrodes and insulators and filled partially with a conducting liquid wetting the surface of the electrodes within the duct. An element controls the flow of conducting liquid within the duct so as to close the electrodes. The element is linked mechanically with a duct sealing element in common with the ducts of all the groups. The sealing element has a cavity filled with a dielectric liquid communicating with the ducts of all the groups.
Inventors
- 👤 Anatoly V. Zakurdaev
- 👤 Andrei B. Luzhensky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:18
CPC Classifications
H; H01; H01H; H01H29/00; H01H29/004; H01H29/28; H01H57/00; H01H2029/008; H01H2057/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A device for switching electrical circuits, comprising a plurality of electrical circuits, each including a group of electrodes separated by insulators; a duct in each said group formed by coaxial holes in said electrodes and insulators and filled partially with a conducting liquid wetting the surface of said electrodes within said duct; a duct sealing element in common with all said ducts; a cavity in said duct sealing element filled with a dielectric liquid communicating with said ducts of all said groups; and an element mechanically linked to said duct sealing element for controlling the flow of said conducting liquid within said ducts by acting on said duct sealing element and producing a compressive wave which is passed simultaneously through the dielectric liquid to all said ducts and synchronously alters the position of the conductive liquid in all said ducts simultaneously thereby selectively placing said electrodes in electrical contact or electrically separating said electrodes.
Claim 2
Independent Claim
154 words
A device for switching electrical circuits, comprising a plurality of electrical circuits, each including a group of electrodes separated by insulators; a duct in each said group formed by coaxial holes in said electrodes and insulators and filled partially with a conducting liquid wetting the surface of said electrodes within said duct; a duct sealing element in common with all said ducts; a cavity in said duct sealing element filled with a dielectric liquid communicating with said ducts of all said groups; and an element mechanically linked to said duct sealing element for controlling the flow of said conducting liquid within said ducts by acting on said duct sealing element and producing a compressive wave which is passed simultaneously through the dielectric liquid to all said ducts and synchronously alters the position of the conductive liquid in all said ducts simultaneously thereby selectively placing said electrodes in electrical contact or electrically separating said electrodes.
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) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |