Railway car truck friction shoe

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10589759
SERIAL NO

15453515

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Importance

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Abstract

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A friction shoe includes a bottom base engaging and supported by a pair of support springs, and a sloped wall engaging the sloped support face of a bolster. The bottom base includes a cylindrical spring lug that has a center opening that extends through the spring lug. The bottom surface of the spring lug is flat and smooth and is configured to engage an additional concentrically nested support spring. The additional spring increases the force between the vertical support face of the wedge and the vertical wear plate of the side frame.

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First Claim

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Patent Owner(s)

  • AMSTED RAIL COMPANY, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Coseglia, John Edwardsville, US 7 9

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