Improved elevated rail transportation system

Improved friction shoe for freight car truck

Improved friction shoe for freight car truck

Improved friction shoe for freight car truck

Improved gravity wedge for slackless railcar connections

Improved hand brake lever interface for single-cylinder...

Improved interior contour for bore of friction support...

Improved intermodal rail vehicle to form a train

Improved intermodal vehicle for forming a train of highway...

Improved lightweight and ultra-lightweight portable derails

Improved lightweight bolster for a railway truck

Improved mobile jaw vice for clamping and unclamping...

Improved positive signal comparator and method

Improved railcar coupler lock with increased chamfer on the...

Improved service-life, low-profile, retrofittable,...

Improved side stake for rotary dump rail car

Improved slack adjusting gravity wedge for railway slackless...

Improved supplemental restraint for auto-rack railroad car...

Improvements to vehicle-transporting railway cars

In-train wheel changing method & device