Douglas W. Smith

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Romeoville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Lightweight knuckle for a railroad car coupler
- Patent number 5,954,212
- Issue date Sep 21, 1999
- National Castings Incorporated
- Scott A. Beatty
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Railcar bolster casting method
- Publication number 20040031413
- Publication date Feb 19, 2004
- Douglas W. Smith
- B61 - RAILWAYS
Information Patent Application
Contour mold casting method
- Publication number 20040031580
- Publication date Feb 19, 2004
- Douglas W. Smith
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Railcar sideframe casting method
- Publication number 20030221811
- Publication date Dec 4, 2003
- Douglas W. Smith
- B22 - CASTING POWDER METALLURGY