US3670123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-point to common point dead tank switch having vacuum insulated contacts and vacuum insulated terminals
Assignee: Joslyn Manufacturing and Supply Co
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Filing: 1971-04-29
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Granted: 1972-06-13
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Expires: 1991-04-29
Abstract
Abstract A vacuum switch has means for selectively opening or closing one or more of plural contact sets each having a stationary contact and a relatively movable contact. Terminals for the stationary contacts are provided within an electrically dead tank which provides the vacuum enclosure for the contacts and also for terminal conductors.
Inventors
- 👤 Elmer L Luehring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:56
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/02; H01H33/022; H01H2033/024; H01H33/666; H01H2033/6668; H01H33/662; H01H33/66261
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
In a high voltage electrical switch, the combination of an outer tank means which forms a substantially single enclosure protected against ambient and for containing substantially no air, plural contact sets located within the tank means and each comprising a relatively stationary contact and a relatively movable contact, plural operating rods at least partly insulative and arranged for selectively moving each of the movable contacts each selectively independent of position or movement of any other, an internal common member electrically in circuit with all movable contacts, plural terminal connectors each associated with a respective one of the stationary contacts, plural shielding means each spacingly surRounding a respective stationary contact with said shielding means being electrically isolated each from the other.
Claim 2
Dependent Claim
120 words
In a high voltage electrical switch, the combination of an outer tank means which forms a substantially single enclosure protected against ambient and for containing substantially no air, plural contact sets located within the tank means and each comprising a relatively stationary contact and a relatively movable contact, plural operating rods at least partly insulative and arranged for selectively moving each of the movable contacts each selectively independent of position or movement of any other, an internal common member electrically in circuit with all movable contacts, plural terminal connectors each associated with a respective one of the stationary contacts, plural shielding means each spacingly surRounding a respective stationary contact with said shielding means being electrically isolated each from the other.
Claim 3
Dependent Claim
46 words
In a high voltage switch, the combination of claim 1 further characterized by the internal common connection member being plate-like, and there being movable contact support members which interconnect the operating rods with the movable contacts and with the internal common connection member through universal joints.
Claim 4
Dependent Claim
73 words
In a high voltage switch, the combination of claim 1 further characterized by the switch being a plural way to common point vacuum switch with the plural contact sets insulated, at least in part, from one another, and each from any terminal connector with which it is not most directly associated by the common vacuum environment of the common enclosure, while the terminal connectors are in part so insulated from one another also.
Claim 5
Dependent Claim
31 words
In a high voltage switch, the combination of claim 2 further characterized by the universal joints being between the operating rods and the movable contacts and comprising ball and socket means.
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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |