ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,748, issued on Oct. 20, was assigned to HITACHI RAIL STS USA INC. (Pittsburgh).
"Railway control and field device switching system" was invented by Igor Bentsionov (Pittsburgh) and Dmitriy Chelobanov (Wexford, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A switching system for selectively connecting railway field devices with a first control system or a second control system. The switching system includes a first plug panel including a number of first plugs structured to connect to the field devices, the first control system, and the second control system, a plurality of first relays structured to selectively connect one of the first plugs wit...