Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 3, 2009
Patent Application Number
11838434
Date Filed
August 14, 2007
Patent Primary Examiner
Patent abstract
A swing motion rail road freight car truck is provided that does not have lateral underslung cross bracing in the nature of a transom, a frame brace, or lateral rods. The truck has a truck bolster and a pair of sideframes, the truck bolster being mounted transversely relative to the sideframes. The sideframes have spring seats for the groups of springs. The springs seats may be on rockers, or may be rigidly mounted in the sideframes. Friction dampers are provided in inboard and outboard pairs. The biasing force on the dampers urges then to that act between the bolster ands and sideframes to resist parallelogram deflection of the truck.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
