Featured patents

Railway Dark Territory Switch Automation
US 08857770 B2, Oct. 14, 2014, Donald Coy Beamon et al.
In a vital railroad switching system for dark territory, a method of wirelessly…

Shield Device for a Switch Point Adjusting Element
US 08783627 B1, July 22, 2014, James Arnold et al.
A shield device for a switch point adjusting element of a railroad switch having…

Patentorg has 2 documents under Switch Signals Patents.