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| Number | Title | Issue Date |
| 7301433 | Fuse and truck cable assembly for a rail vehicle third rail current collector A fuse and truck cable assembly for a rail vehicle third rail current collector comprising a truck cable, a cable-engaging element, a fuse canister, a canister closure, a fuse contact element, and a flexible gland arranged so that the fuse can be replaced in the fus... | 11/27/2007 |
| 7164100 | High-frequency de-icing of cableways High-frequency AC voltage with a frequency in a range of from 60 to 100 kHz supplied from a power source at 3 to 15 kV is applied to an electrical conductor within about 30 cm of a cableway. The high-frequency AC voltage generates an alternating electric field. Capa... | 01/16/2007 |
| 7038125 | Low-frequency de-icing of cableways Low-frequency AC power in a range of about from 50 to 200 Hz flows through a cableway, providing 5 to 100 watts per meter of cableway. Through separate connections to a power bus, a cableway is electrically divided into branches of a parallel circuit that use low vo... | 05/02/2006 |
| 4429845 | Rail track heaters Rail track heaters, comprising metal sheathed electric heaters, adapted to be positioned for heating a third rail or a switch rail. Our invention includes a simple stamping to provide a bracket for holding a cover containing the heater and surrounding ins... | 02/07/1984 |
| 4195805 | Railroad switch heater An apparatus for heating railroad rails such as those forming a railroad switch to prevent obstruction of the switch by ice and snow includes an elongate, bendable, high temperature heating cable disposed lengthwise against and along a side of the rail we... | 04/01/1980 |
| 4190137 | Apparatus for deicing of trolley wires In a power transmission system comprising at least two trolley wires for supplying an alternating current power to an electric vehicle, and at least two feeder lines coupled to the trolley wires at feeding points of the corresponding trolley wires spaced ... | 02/26/1980 |
| 4106599 | Electrification rail and joint construction A conductor rail construction, and a joint for connecting conductor rails of electrification systems as used for vehicles, cranes and the like, comprising rail members whose cross-sections are like the figure H, and joints each comprising a relatively thi... | 08/15/1978 |
