Patent US3564344A successfully refreshed from Google Patents.
US3564344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal clad switch plants for high voltages
Assignee: COQ NV
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Filing: 1968-06-05
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Granted: 1971-02-16
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Expires: 1988-06-05
Abstract
Abstract A high voltage system includes at least two horizontal parallel bus bar systems enclosed in metal tubes and switching units connected thereto. The switching units each contain at least a circuit breaker and two bus bar isolating switches connected in series therewith and each isolating switch is connected to a bar of the bus bar system. The circuit breaker and the isolating switches are accommodated in a common metal casing which is joined to the metal tubes enclosing the bus bars through the medium of tubular extensions or collars which are joined to tubular parts extending perpendicularly upwardly from the metal tubes, the fixed contact of each isolating switch being permanently connected to the relevant bus bar and being contained in a respective one of the tubular parts.
Inventors
- 👤 Rintje Boersma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:10
CPC Classifications
H; H02; H02B; H02B13/00; H02B13/02; H02B13/035
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
197 words
In combination with a system of parallel bus bars enclosed in metal tubes which are adapted to be connected to ground potential, and which are provided with a pair of parallel support collars perpendicular to said tubes, a fixed contact within each support collar connected to a respective one of said bus bars, a switch assembly including: a common metal housing having a pair of parallel mounting collars projecting therefrom, said mounting collars being spaced apart commensurate with the spacing between said tubes, said housing being axially symmetrical and disposed with its axis parallel to the axes of said mounting collars, means joining said mounting collars in alignment with said support collars, a movable contact within each of said mounting collars, means within said housing for selectively moving said movable contacts into engagement with said fixed contacts, a cable connection box projecting from said housing adjacent said mounting collars, a cable within said cable connection box for connection to external equipment, a circuit breaker within said housing, and conductor means within said housing connecting said movable contacts, said circuit breaker and said cable in series whereby to form at least one looped current path within said housing.
Claim 2
Dependent Claim
197 words
In combination with a system of parallel bus bars enclosed in metal tubes which are adapted to be connected to ground potential, and which are provided with a pair of parallel support collars perpendicular to said tubes, a fixed contact within each support collar connected to a respective one of said bus bars, a switch assembly including: a common metal housing having a pair of parallel mounting collars projecting therefrom, said mounting collars being spaced apart commensurate with the spacing between said tubes, said housing being axially symmetrical and disposed with its axis parallel to the axes of said mounting collars, means joining said mounting collars in alignment with said support collars, a movable contact within each of said mounting collars, means within said housing for selectively moving said movable contacts into engagement with said fixed contacts, a cable connection box projecting from said housing adjacent said mounting collars, a cable within said cable connection box for connection to external equipment, a circuit breaker within said housing, and conductor means within said housing connecting said movable contacts, said circuit breaker and said cable in series whereby to form at least one looped current path within said housing.
Claim 3
Dependent Claim
61 words
In a system as defined in claim 1 wherein said housing includes a top wall, a bottom wall and a sidewall interconnecting said top and bottom walls, the axis of said housing being parallel to the axes of said mounting collars, and the axes of said mounting collars including an angle of 90* with respect to the axis of said housing.
Claim 4
Dependent Claim
63 words
In a system as defined in claim 2 wherein said cable connection box projects from said housing parallel to said mounting collars and is equidistantly spaced with respect thereto, insulator means closing said cable connection box said conductor means including a fixed contact projecting through said insulator means and a conductor within said housing connecting the last-mentioned fixed contact to said circuit breaker.
Claim 5
Dependent Claim
82 words
In a system as defined in claim 1 wherein said housing includes top and bottom walls connected by an elongate sidewall, a sleeve mounted on said bottom wall and extending axially and centrally within said housing, said mounting collars projecting outwardly from said bottom wall in parallel relation to said sleeve and including an angle of 90* with respect to the axis of said housing, said circuit breaker being housed within said sleeve, and means for blasting extinguishing gas through said sleeve.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |