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Railway switches and signals April category listing, related patent applications 04/11

20110095138 - Split sector gear: A sector gear split into sections for secure engagement around a tripper shaft, allowing the gear to be replaced in less time, by a smaller crew, and with fewer tools.... Agent:

20110095139 - Method and apparatus for bi-directional downstream adjacent crossing signaling: First and second crossing predictors communicate with each other, and each predictor transmits signals to instruct downstream adjacent predictors to activate their warning devices at a constant warning time (referred to as DAXing) by using train detection information from the other predictor. The communications between the predictors may be rail... Agent: Invensys Rail Corporation

20110084175 - Switch or rail box with sealing system for railway rails and methods for sealing the box: A switch or rail box for railway rails that include a system for sealing a portion of a location where the rail enters or exits the box. The sealing system includes a pair of seal plates that can be connected to an inner surface and an outer surface of the... Agent: R&r Solutions, Lp

20110084176 - Railroad crossing: A method of operating a railway crossing including the steps of receiving a signal from a locomotive; and activating crossing warning devices and/or downroad warning and in-vehicle alert devices.... Agent: