Shawn A. Opfer

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Drawbar for lightweight drawbar assembly
- Patent number 6,155,442
- Issue date Dec 5, 2000
- McConway & Torley Corporation
- Jeffrey D. Wurzer
- B61 - RAILWAYS
Information Patent Grant
Bearing block for lightweight drawbar assembly
- Patent number 6,131,752
- Issue date Oct 17, 2000
- McConway & Torley Corporation
- Jeffrey D. Wurzer
- B61 - RAILWAYS
Information Patent Grant
Lightweight drawbar assembly
- Patent number 6,102,222
- Issue date Aug 15, 2000
- McConway & Torley Corporation
- Jeffrey D. Wurzer
- B61 - RAILWAYS
Information Patent Grant
Support housing for lightweight drawbar assembly
- Patent number 6,092,679
- Issue date Jul 25, 2000
- McConway & Torley Corporation
- Jeffrey D. Wurzer
- B61 - RAILWAYS
Information Patent Grant
Spool for lightweight drawbar assembly
- Patent number 6,065,622
- Issue date May 23, 2000
- McConway & Torley Corporation
- Jeffrey D. Wurzer
- B61 - RAILWAYS