Patent US3813502A successfully refreshed from Google Patents.
US3813502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductor rails for energising electrical machinery
Assignee: Acieries de Gennevilliers SA
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Filing: 1972-10-10
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Granted: 1974-05-28
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Expires: 1992-10-10
Abstract
Abstract A conductor rail assembly for high speed tracked vehicles includes an I-section aluminium rail core, the lower flange carrying a U-section stainless steel sheath for contact by a current-collecting shoe. The remainder of the core is protected by an insulating sheath which is spaced from the vertical web of the core to provide spaces within which fishplates can be located. An inverted J insulating support carries the rail by means of a resilient claw. The base of the support is connected to a bracket secured to track sleepers, the connection between support and bracket enabling vertical and lateral adjustment.
Inventors
- 👤 P Bommart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:00
CPC Classifications
B; B60; B60M; B60M1/00; B60M1/30; B60M1/305; B60M1/12; B60M1/13; B60M1/135
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
110 words
A conductor rail comprising a longitudinal core having a pair of flanges opposed central regions of which are interconnected by a web to form a substantially I-section construction, a longitudinal generally U-section conducting sheath being disposed over one flange for engagement by a collecting shoe, a longitudinal generally U-section electrically insulating sheath having a base portion covering an outwardly facing surface of the second flange, lateral portions of the insulating sheath extending to adjacent the said one flange but being separated from the web to define a space on each side thereof, said lateral portions of said insulating sheath having edges cooperating with said one flange to close said spaces.
Claim 2
Dependent Claim
110 words
A conductor rail comprising a longitudinal core having a pair of flanges opposed central regions of which are interconnected by a web to form a substantially I-section construction, a longitudinal generally U-section conducting sheath being disposed over one flange for engagement by a collecting shoe, a longitudinal generally U-section electrically insulating sheath having a base portion covering an outwardly facing surface of the second flange, lateral portions of the insulating sheath extending to adjacent the said one flange but being separated from the web to define a space on each side thereof, said lateral portions of said insulating sheath having edges cooperating with said one flange to close said spaces.
Claim 3
Dependent Claim
29 words
A conductor rail as claimed in claim 1 in which the said one flange has a lateral protuberance on each side and the insulating sheath engages around each protuberance.
Claim 4
Dependent Claim
20 words
A conductor rail as claimed in claim 1 in which the insulating sheath overlaps the conducting sheath on each side.
Claim 5
Dependent Claim
25 words
A conductor rail as claimed in claim 1 in which the core is formed of aluminium and the conducting sheath is formed of stainless steel.
Claim 6
Dependent Claim
35 words
A conductor rail assembly comprising a pair of rails each substantially of the form as claimed in claim 1 and having adjacent ends thereof interconnected by at least two fishplates situated one within each space.
Claim 7
Dependent Claim
49 words
An assembly as claimed in claim 5 wherein the adjacent ends of the two rails are each reduced in cross section along a plane extending through the web and overlap one another to form an expansion joint, the overlapping portions being interconnected by fishplates disposed within the said spaces.
Claim 8
Dependent Claim
111 words
A conductor rail comprising a longitudinal core having a pair of flanges opposed central regions of which are interconnected by a web to form a substantially I-section construction, a longitudinal generally U-section conducting sheath being disposed over one flange for engagement by a collecting shoe, a longitudinal generally U-section electrically insulating sheath having a base portion covering an outwardly facing surface of the second flange, lateral portions of the insulating sheath extending to adjacent the said one flange but being separated from the web to define a space one eAch side thereof, the said one flange having a lateral protuberance on each side and the insulating sheath engaging around each protuberance.
Claim 9
Dependent Claim
111 words
A conductor rail comprising a longitudinal core having a pair of flanges opposed central regions of which are interconnected by a web to form a substantially I-section construction, a longitudinal generally U-section conducting sheath being disposed over one flange for engagement by a collecting shoe, a longitudinal generally U-section electrically insulating sheath having a base portion covering an outwardly facing surface of the second flange, lateral portions of the insulating sheath extending to adjacent the said one flange but being separated from the web to define a space one eAch side thereof, the said one flange having a lateral protuberance on each side and the insulating sheath engaging around each protuberance.
Claim 10
Dependent Claim
145 words
A conductor rail comprising a pair of rails, each rail comprising a longitudinal core having a pair of flanges opposed central regions of which are interconnected by a web to form a substantially I-section construction, a longitudinal generally U-section conducting sheath being disposed over one flange for engagement by a collecting shoe, a longitudinal generally U-section electrically insulating sheath having a base portion covering an outwardly facing surface of the second flange, lateral portions of the insulating sheath extending to adjacent the said one flange but being separated from the web to define a space on each side thereof, said rails being arranged end-to-end, the adjacent ends of the two rails each being reduced in cross section along a plane extending through the web and overlapping each other to form an expansion joint, the overlapping portions being interconnected by fishplates disposed within the said spaces.
Claim 11
Dependent Claim
145 words
A conductor rail comprising a pair of rails, each rail comprising a longitudinal core having a pair of flanges opposed central regions of which are interconnected by a web to form a substantially I-section construction, a longitudinal generally U-section conducting sheath being disposed over one flange for engagement by a collecting shoe, a longitudinal generally U-section electrically insulating sheath having a base portion covering an outwardly facing surface of the second flange, lateral portions of the insulating sheath extending to adjacent the said one flange but being separated from the web to define a space on each side thereof, said rails being arranged end-to-end, the adjacent ends of the two rails each being reduced in cross section along a plane extending through the web and overlapping each other to form an expansion joint, the overlapping portions being interconnected by fishplates disposed within the said spaces.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |