Invention Grant
- Patent Title: Dual ultrasonic train detector
- Patent Title (中): 双超声波列车检测仪
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Application No.: US12592452Application Date: 2009-11-27
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Publication No.: US08109474B2Publication Date: 2012-02-07
- Inventor: Peter M. Bartek
- Applicant: Peter M. Bartek
- Agent William Nitkin
- Main IPC: B61L25/02
- IPC: B61L25/02
Abstract:
A train detector having dual ultrasonic sensors positioned adjacent to a rail for sensing the movement thereby of a train wheel and determining the direction and speed of the train for transmitting such information to nearby workers and signal devices and a method of train detecting are disclosed.
Public/Granted literature
- US20110127389A1 Dual ultrasonic train detector Public/Granted day:2011-06-02
Information query
