Self steering railway car
Patent 4164188 Issued on August 14, 1979. Estimated Expiration Date: 
May 26, 1997. 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.
May 26, 1997. 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 638665 1256558 1682517 1723720 1728096 1953401 1973816 2245333 3687085 3696757 InventorsAssigneeApplicationNo. 05/800687 filed on 05/26/1977US Classes:105/166, Six-wheel105/135, Opposing torque equalizer105/136, Axle mounting105/168, Positive control105/175.1, Articulated105/176InterconnectedExaminersPrimary: Husar, Francis S.Assistant: Beltran, Howard International ClassesB61C 9/00 (20060101)B61C 9/50 (20060101) B61F 5/46 (20060101) B61F 5/00 (20060101) B61F 5/24 (20060101) B61F 5/02 (20060101) AbstractA railway car includes a chassis supported on two sub-frames which are relatively pivotally movable. The sub-frames support propulsion motors, differentials, and driven flanged wheels. And intermediate steering axle and wheel assembly are transversly movable in response to track curvature and a steering beam extending outwardly from the steering axle pivots the sub-frames for steering movement. | |
