Differential wheel mounting for railroad car
Patent 7316436 Issued on January 8, 2008. Estimated Expiration Date: 
February 22, 2026. 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.
February 22, 2026. 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.InventorApplicationNo. 11359652 filed on 02/22/2006US Classes:295/37, Sleeved and fixed wheels295/43, WHEEL-ATTACHING DEVICES295/44, LOOSE WHEEL105/49, Electric295/35, Bushings295/36.1, AXLE384/275, Radial collar and sleeve105/218.1, Axle bearing mounting105/154Inner wheelsExaminersPrimary: Stormer, Russell D.Attorney, Agent or FirmForeign Patent References
International ClassB60B 37/12AbstractA differential wheel mounting for replacing a standard railroad axle assembly having a wheel seat portion which includes a sleeve having several sliding surfaces fixedly mounted over the wheel seat portion of the axle, a railroad wheel with a running surface for contacting a rail and a plain bearing member detachably mounted to the railroad wheel. The plain bearing member has non-metallic bearing surfaces that mate with the sliding surfaces on the sleeve so that the bearing member and the attached wheel are laterally confined on the sleeve while being rotatable about the sleeve. The plain bearing member sustains both radial and thrust loads during normal operation of a railroad car. | |
