发明名称 |
Locomotive whistle controlled railroad grade crossing warning system |
摘要 |
A railroad grade crossing warning device designed to operate at un-guarded grade crossings without the need for expensive train detection sensors. The system utilizes the sound of an approaching locomotive horn or whistle to activate a warning at a grade crossing. The preferred device is self contained and is powered by solar panel and storage battery to provide a flashing strobe warning on the approach of a train.
|
申请公布号 |
US6416021(B2) |
申请公布日期 |
2002.07.09 |
申请号 |
US20010867014 |
申请日期 |
2001.05.29 |
申请人 |
GREENE, JR. GEORGE JEFFERSON |
发明人 |
GREENE, JR. GEORGE JEFFERSON |
分类号 |
B61L29/24;(IPC1-7):B61L29/32 |
主分类号 |
B61L29/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|