Patent US3710302A successfully refreshed from Google Patents.
US3710302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bus duct with hinged cover for plug-in region
Assignee: Westinghouse Electric Corp
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Filing: 1971-05-24
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Granted: 1973-01-09
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Expires: 1991-05-24
Abstract
Abstract A section of plug-in type bus duct comprises a plug-in region at an opening in the housing of the duct. A plug-in insulating member, having opening means therein, is supported in the housing at the plug-in region. A plug-in cover is pivotally mounted on the insulating member to cover the opening means in the insulating member. The cover is formed with a resilient latch at the pivoted end thereof that cooperates with the housing to maintain the cover in the open position and another resilient latch at the opposite end thereof that cooperates with the insulating member to maintain the cover in the closed position. The parts are constructed such that the plug-in cover is captured on the insulating member when the insulating member is mounted in the housing.
Inventors
- 👤 B Shannon
- 👤 C Weimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06; H02G5/08; H02G5/005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
227 words
An elongated section of bus duct comprising a housing, a plurality of bus bars supported in said housing, a plug-in region along the length of said section, said housing at said plug-in region having opening means therein, a plug-in insulating member supported in said housing at said opening means, said plug-in insulating member having opening means therein for receiving plug-in power take-off members of a plug-in unit, said plug-in insulating member being a molded insulating member with hinge-pin means molded integral therewith, a plug-in cover comprising a sheet metal member with hinge means formed integrally therewith cooperating with said hinge-pin means to pivotally support said plug-in cover on said plug-in insulating member to cover said opening means in said plug-in insulating member when said plug-in cover is in the closed position, said plug-in cover being pivotally movable on said plug-in insulating member to an open position to provide access to said opening means in said plug-in insulating member, said plug-in cover being mounted on said plugin insulating member before said plug-in insulating member is mounted in said bus duct housing, securing means securing said plug-in insulating member to said housing, and said plug-in insulating member and said pluG-in cover being constructed and arranged such that said plug-in cover is captured in place on said plug-in insulating member when said plug-in insulating member is mounted in said housing.
Claim 2
Dependent Claim
227 words
An elongated section of bus duct comprising a housing, a plurality of bus bars supported in said housing, a plug-in region along the length of said section, said housing at said plug-in region having opening means therein, a plug-in insulating member supported in said housing at said opening means, said plug-in insulating member having opening means therein for receiving plug-in power take-off members of a plug-in unit, said plug-in insulating member being a molded insulating member with hinge-pin means molded integral therewith, a plug-in cover comprising a sheet metal member with hinge means formed integrally therewith cooperating with said hinge-pin means to pivotally support said plug-in cover on said plug-in insulating member to cover said opening means in said plug-in insulating member when said plug-in cover is in the closed position, said plug-in cover being pivotally movable on said plug-in insulating member to an open position to provide access to said opening means in said plug-in insulating member, said plug-in cover being mounted on said plugin insulating member before said plug-in insulating member is mounted in said bus duct housing, securing means securing said plug-in insulating member to said housing, and said plug-in insulating member and said pluG-in cover being constructed and arranged such that said plug-in cover is captured in place on said plug-in insulating member when said plug-in insulating member is mounted in said housing.
Claim 3
Dependent Claim
57 words
An elongated section of bus duct according to claim 1, said plug-in insulating member comprising a first latch part molded integral therewith, said plug-in cover comprising a first resilient latch, in the open position of said plug-in cover said first latch resiliently engaging said first latch part to latch said plug-in cover member in the open position.
Claim 4
Dependent Claim
48 words
An elongated section of bus duct according to claim 2, said plug-in insulating member comprising a second latch part molded integral therewith, and said plug-in cover comprising a second resilient latch resiliently cooperating with said second resilient latch part to latch said plug-in cover in the closed position.
Claim 5
Dependent Claim
47 words
An elongated section of bus duct according to claim 3, said first latch of said plug-in cover being disposed at a first end of said plug-in cover in proximity to said hinge part, and said second latch being disposed at the opposite end of said plug-in cover.
Claim 6
Dependent Claim
54 words
An elongated section of bus duct according to claim 4, said plug-in insulating member comprising a pair of hinge-pin parts molded integral therewith, said plug-in cover member comprising a pair of hinge parts formed integral therewith cooperating with said pair of hinge-pin parts to pivotally support said plug-in cover on said plug-in insulating member.
Claim 7
Dependent Claim
28 words
An elongated section of bus duct according to claim 5, and said first latch of said plug-in cover being disposed intermediate said hinge parts of said plug-in cover.
Claim 8
Dependent Claim
52 words
An elongated section of bus duct according to claim 6, said plug-in cover being movable substantially 180* from the closed position to the open position, and said first latch cooperating with said the said first latch part of said plug-in insulating member to latch said plug-in cover in the fully open position.
Claim 9
Dependent Claim
88 words
An elongated section of bus duct according to claim 7, said plug-in cover being movable into the mounted position on said plug-in insulating member before said plug-in insulating member is mounted on said housing, securing means for securing said plug-in insulating member on said housing, and said hinge-pin parts said catch parts said hinge parts and said catches along with said housing cooperating to capture said plug-in cover in place on said plug-in insulating member when said plug-in insulating member is in the mounted position on said housing.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |