Patent US3603752A successfully refreshed from Google Patents.
US3603752A
Expired / Lapsed
US
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Grounding-switch device
Assignee: Westinghouse Electric Corp
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Filing: 1970-01-15
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Granted: 1971-09-07
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Expires: 1990-01-15
Abstract
Abstract A grounding switch device is provided capable of utilizing the same type of mechanism as a circuit breaker, and adapted for substitution for the circuit breaker structure in metal-clad switchgear equipment. Each pole-unit is provided with a selector switch capable of being manually positioned in either one of two positions, for grounding either the line terminal or the bus terminal, and, additionally, the pole-unit includes a grounding switch capable of being actuated by the quick-acting circuit breaker type of operating mechanism. The grounding device is of the same dimensions and can be rolled into the same cell structure of the metal-clad switchgear equipment which accommodates the circuit breaker unit.
Inventors
- 👤 Russell E Frink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:37
CPC Classifications
H; H02; H02B; H02B11/00; H02B11/18; H02B11/20; H02B11/22; H02B11/28
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
89 words
In metal-clad switchgear equipment, the combination of: a. means defining a line terminal; b. means defining a bus terminal; c. a grounding switch device comprising a movable selector switch adaptable for selectively electrically contacting either the line terminal or the bus terminal at the will of the operator; d. said device additionally comprising a movable grounding switch adaptable for being electrically connected to, and disengaged from, one terminal of said selector switch; and, e. an operating mechanism for operating said movable grounding switch to its contacting and disengaged positions.
Claim 2
Dependent Claim
89 words
In metal-clad switchgear equipment, the combination of: a. means defining a line terminal; b. means defining a bus terminal; c. a grounding switch device comprising a movable selector switch adaptable for selectively electrically contacting either the line terminal or the bus terminal at the will of the operator; d. said device additionally comprising a movable grounding switch adaptable for being electrically connected to, and disengaged from, one terminal of said selector switch; and, e. an operating mechanism for operating said movable grounding switch to its contacting and disengaged positions.
Claim 3
Dependent Claim
28 words
The combination of claim 1, wherein the grounding switch device is interchangeable with a circuit-breaker unit and may be rolled into the cubicle structure of metal-clad switchgear equipment.
Claim 4
Dependent Claim
30 words
The combination of claim 1, wherein the grounding switch device comprises a tank structure having the movable selector switch and thE movable grounding switch disposed together within the tank structure.
Claim 5
Dependent Claim
27 words
The combination of claim 1, wherein the grounding switch device includes a mechanical linkage which is in toggle in the closed position of the movable grounding switch.
Claim 6
Dependent Claim
26 words
The combination of claim 1, wherein the grounding switch device includes a mechanical linkage which is in toggle in the closed position of the selector switch.
Claim 7
Dependent Claim
38 words
The combination of claim 1, wherein the grounding switch device has a mechanical linkage for both the selector switch and the movable grounding switch, each of which is in toggle in the closed position of the respective switch.
Claim 8
Dependent Claim
18 words
The combination of claim 3, wherein the tank structure encloses a high insulating gas having high dielectric properties.
Claim 9
Dependent Claim
25 words
The combination of claim 1, wherein the grounding switch device has the selector switch and grounding switch both rotatively mounted upon an insulator barrier plate.
Claim 10
Dependent Claim
16 words
The combination of claim 8, wherein two spaced insulating barrier plates in parallel relation are used.
Claim 11
Dependent Claim
28 words
The combination of claim 3, wherein an insulating barrier plate is removably disposed within the tank structure and rotatively supports both the selector switch and the grounding switch.
Claim 12
Dependent Claim
110 words
In metal-clad switchgear equipment, the combination of: a. a cubicle structure supporting both line and bus terminals; b. a roll-in type grounding switch device having corresponding line and bus terminals capable of contacting the aforesaid line and bus terminals supported by the cubicle structure; c. said device including a tank structure enclosing a highly insulating gas and interiorly disposed selector switch and grounding switch assemblies; d. the selector-switch assembly being capable of being manually positioned to electrically contact either the bus or line terminals of the tank structure; and, e. said roll-in type device including, as a component part thereof, a mechanism which is linked to the grounding switch assembly.
Claim 13
Dependent Claim
110 words
In metal-clad switchgear equipment, the combination of: a. a cubicle structure supporting both line and bus terminals; b. a roll-in type grounding switch device having corresponding line and bus terminals capable of contacting the aforesaid line and bus terminals supported by the cubicle structure; c. said device including a tank structure enclosing a highly insulating gas and interiorly disposed selector switch and grounding switch assemblies; d. the selector-switch assembly being capable of being manually positioned to electrically contact either the bus or line terminals of the tank structure; and, e. said roll-in type device including, as a component part thereof, a mechanism which is linked to the grounding switch assembly.
Claim 14
Dependent Claim
20 words
The combination of claim 11, wherein the selector-switch assembly and grounding-switch assembly are rotatively supported on an insulating barrier plate.
Claim 15
Dependent Claim
17 words
The combination of claim 3, wherein a viewing window is located between the bus and line terminals.
Claim 16
Dependent Claim
17 words
The combination of claim 11, wherein a viewing window is located between the line and bus terminals.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |