Bolster and spring pockets for use with rail truck

Details Bolster and spring pockets for use with rail truck Bolster and spring pockets for use with rail truck

2006-07-19

2008-12-30

Morano, S. Joseph (Department: 3617)

Railway rolling stock

Trucks

C105S197050, C105S190200

Reexamination Certificate

active

07469641

ABSTRACT:
A bolster for use with a rail truck assembly comprising a spring receptacle having a plurality of spring pockets on the bottom of each bolster. The bolster slidingly attached to a side frame at each end. A spring group comprising load springs and control springs, the load springs on each side frame to support and suspend the bolster end and control springs to control bolster end movement. The spring pocket adapted to retain the springs in a predetermined location and position relative to the bolster and side frame. The spring receptacle comprising spring guides intermediate the load springs and control springs to prevent tangling or interference between the springs. An angled surface on each spring guide, the angled surface forming a chamfer disposed to urge the spring into the spring pocket during installation and use.

REFERENCES:
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patent: 4760799 (1988-08-01), Jackson et al.
patent: 6371033 (2002-04-01), Smith et al.
patent: 6823800 (2004-11-01), Berg et al.
patent: 7255048 (2007-08-01), Forbes
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patent: 2002/0073880 (2002-06-01), Wronkiewicz et al.
patent: 2006/0283351 (2006-12-01), Forbes et al.
patent: 2008/0017065 (2008-01-01), Berg et al.
patent: 2008/0035011 (2008-02-01), Forbes

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