Railway flanged wheel vibration dampening assembly
Patent 4183572 Issued on January 15, 1980. Estimated Expiration Date: 
November 10, 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.
November 10, 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 1880953 2129178 2285924 2293181 2605132 InventorsAssigneeApplicationNo. 05/850368 filed on 11/10/1977US Classes:295/7, Sound deadeners105/452, SOUND DEADENERS181/207, Mechanical vibration attenuator188/218A, Dust guard188/268, Using yieldable or fluent solid or semisolid295/15, Tire fasteners295/19, Transverse keys295/20, Bolted lap flanges301/6.91, Having vibration damper or heat insulator74/443Sound deadeningExaminersPrimary: Blix, Trygve M.Assistant: Beltran, Howard Attorney, Agent or FirmInternational ClassesB60B 17/00 (20060101)G10K 11/16 (20060101) G10K 11/00 (20060101) Foreign Application Priority Data1976-11-20 DEAbstractThe present noise damping apparatus is especially intended for damping the noise caused by wheels running on rails. For this purpose there is provided a noise screen connected to at least one surface of the rail wheel in a force transmitting, yet removable manner. The noise screen comprises vibration damping reed members. This screen prevents noise generated by the wheel proper from radiating outwardly and it also acts as a noise absorber for the impact noise propagating in the wheel and other solid bodies.Other References
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