Control of model vehicles on a track
Patent 5749547 Issued on May 12, 1998. Estimated Expiration Date: 
August 11, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 11, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2606281 2622542 2830148 2963985 3220356 3529216 3587100 3675586 3810099 Model railroad train control system InventorsAssigneeApplicationNo. 514052 filed on 08/11/1995US Classes:246/4, Cab signal or train control104/300, Car-carried speed regulator104/302, Reversing of car movement or conductor current246/187A, Remote control340/825.69, Radio link446/455Via conductor adjacent to vehicle pathExaminersPrimary: Morano, S. JosephAttorney, Agent or FirmInternational ClassesB61L 007/08B61L 027/00 AbstractA controller for model trains on a train track is provided. The controller causes direct current control signals to be superimposed on alternating current power signals to control effects and features on model vehicles. The model vehicle includes a receiver unit responsive to the direct current control signals.Other References
Field of SearchCentral signal controlCab signal or train control Selective CAB SIGNAL OR TRAIN CONTROL Electric Speed-control systems Remote control Non-mechanical control of vehicles from wayside Visual cab signals Train mechanism Electric or magnetic Inductive Cab-circuit controller WITH MEANS FOR CONTROLLING OPERATION RESPONSIVE TO ELECTROMAGNETIC RADIATION, MAGNETIC FORCE, OR SOUND WAVES RECEIVED FROM SOURCE, OR REFLECTED FROM OBJECT OR SURFACE, LOCATED APART FROM VEHICLE External car control Auxiliary function on car Superimposed signal on same conductor Car-carried speed regulator Of multiple trains on same track Reversing of car movement or conductor current Phase or frequency shift keying Radio link Wireless link Endless track vehicle Having reversible drive Remotely controlled Via conductor adjacent to vehicle path By radio signal Railroad locomotive simulation | |
