US4085988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bus duct plug-in ground stab
Assignee: Westinghouse Electric Corp
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Filing: 1977-01-27
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Granted: 1978-04-25
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Expires: 1997-01-27
Abstract
Abstract A multi-phase electrical power distribution apparatus characterized by a section of bus duct having a plurality of multi-phase bus bars supported therein, a ground bar within the bus duct, an insulated outlet opening in one wall of the bus duct, a plug-in unit detachably mounted on the bus duct and having electrically conductive means extending through the opening and attached to the bus bars, and a ground conductor extending through the opening and being detachably connected to the ground bar.
Inventors
- 👤 Dennis H. Gamble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:12
CPC Classifications
H; H01; H01R; H01R25/00; H01R25/16; H01R25/164
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
A multiphase electrical power distribution apparatus comprising a section of bus duct including top and bottom walls and opposite side walls forming a housing, a plurality of multi-phase bus bars supported within the housing, a ground bar mounted on a side wall of the housing, one of the walls having an outlet opening, a plug-in unit detachably mounted on the bus duct, the plug-in unit being a box-like member having a bottom wall, the bottom wall including an aperture aligned with the outlet opening when the plug-in unit is attached to the bus duct, the plug-in unit having electrically conductive means extending through the opening and detachably engaging the multi-phase bus bars, ground conductor means within and electrically connected to the plug-in unit and comprising a flexible conductor extending through the opening, and the conductor being biased in detachable contact with the ground bar in the bus duct.
Claim 2
Dependent Claim
148 words
A multiphase electrical power distribution apparatus comprising a section of bus duct including top and bottom walls and opposite side walls forming a housing, a plurality of multi-phase bus bars supported within the housing, a ground bar mounted on a side wall of the housing, one of the walls having an outlet opening, a plug-in unit detachably mounted on the bus duct, the plug-in unit being a box-like member having a bottom wall, the bottom wall including an aperture aligned with the outlet opening when the plug-in unit is attached to the bus duct, the plug-in unit having electrically conductive means extending through the opening and detachably engaging the multi-phase bus bars, ground conductor means within and electrically connected to the plug-in unit and comprising a flexible conductor extending through the opening, and the conductor being biased in detachable contact with the ground bar in the bus duct.
Claim 3
Dependent Claim
41 words
The apparatus of claim 1 in which an electrically insulating member is in the bus duct and aligned with the opening, the electrically insulating member having a number of hole means, and the electrically conductive means extending through the hole means.
Claim 4
Dependent Claim
15 words
The apparatus of claim 2 in which the flexible conductor extends through the hole means.
Claim 5
Dependent Claim
38 words
The apparatus of claim 3 in which the hole means comprises a wall inclined from the outer surface of the insulating member and inwardly toward the ground bar to hold the flexible metal member against the ground bar.
Claim 6
Dependent Claim
57 words
The apparatus of claim 1 in which the ground bar is located against one side wall of the bus duct, the side wall comprises a hole adjacent the ground bar, the conductor extends from the plug-in unit externally of the side wall, and the conductor being biased into the hole and in contact with the ground bar.
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) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |