US 5,682,150 AGranted

Remote control train warning apparatus

OwnerRobert Bob Votavainventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

A train warning device has a ladder frame with barrier sign hingedly mounted for movement by an electric motor between positions folded against the frame between the tracks and upstanding transversely from the tracks. Releasable clamping arms are mounted at the top and bottom of ladder uprights for securement thereof to track ties and enabling passage of a train thereover when folded. A signal receiver/micro computer mounted on the ladder frame controls the motor operation in response to a signal received from a hand held remote controller. A battery mounted on the ladder frame supplies power to the electric motor, signal receiver and other devices such as lamps to ensure independent operation. The barrier sign is profiled as a flagman with a sprung warning arm carrying a stroboscopic lamp. The ladder frame can be used to access the track from an elevated platform.

Claims11

Dependent claims

A portable, remote-control warning apparatus for rail transit systems comprising a remote-controlled, train warning device and a hand held remote controller therefor, the train warning device comprising:

an elongate ladder frame;
a warning barrier sign hingedly mounted on the ladder frame for movement between a retracted position, folded adjacent and along the ladder frame and an extended position, upstanding transversely from the ladder frame, respectively;
releasable clamping means on the ladder frame for securement thereof to rail ties to lie between a pair of tracks so that a train on the tracks can pass over the warning device with the warning barrier sign in retracted position;
an electric motor on the ladder frame connected to the warning barrier sign for effecting said movement;
a signal receiver/motor controller on the ladder frame connected to the electric motor for actuation thereof in response to a signal received from the hand held remote controller;
and,
battery means on the ladder frame connected for supplying power to the electric motor and the signal receiver, whereby operation of the hand held remote controller transmits a signal to the signal receiver to actuate the electric motor to move the warning barrier into said extended, position upstanding from the tracks in the path of a train and into said retracted position lying substantially horizontally between the tracks, to stop and release a train, respectively.

4 more elements

Dependencies are inferred from the claim text.