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US 2019/0100223 A1Published application
Railway truck with elastomeric suspension
AssigneeAmsted Rail Company, Inc.
InventorZachary Harris
Life of this patent
Estimating the term…
Abstract
A railway freight car truck is provided with an elastomeric suspension device between the bolster end and the sideframe spring support surface. The elastomeric device is usually of an elongated oval shape. The elastomeric device takes the place of one or more rows of coil springs that comprise the suspension resting on the sideframe support surface. The freight car truck bolster is supported on the coil springs under empty car conditions and both the coil springs and the elastomeric device under fully loaded car conditions.
Claims11
A railway truck comprising
- two laterally spaced sideframes, each sideframe having a support surface forming a central pocket,
- a bolster extending laterally between said sideframes, the bolster having two end sections each of which is received in one of said sideframe central pockets,
- a plurality of coil springs supported on each sideframe support surface, the coil springs supporting the bolster under unloaded car conditions,
- an elastomeric suspension device supported on each sideframe support surface, the elastomeric suspension device and the plurality of coil springs supporting the bolster under loaded car conditions,
- and wherein said elastomeric suspension device comprises a generally elongated oval shaped body.
2 more elements
A railway truck comprising
- two laterally spaced sideframes, each sideframe having a support surface forming a central pocket,
- a bolster extending laterally between the sideframes, the bolster having two end sections each of which is received in one of the sideframe central pockets,
- a plurality of coil springs supported on each sideframe support surface, the coil springs supporting one of the bolster end sections,
- an elastomeric suspension device supported on each sideframe support surface, the elastomeric suspension device and the plurality of coil springs supporting the bolster under loaded car conditions,
- and wherein said elastomeric suspension device comprises a generally elongated shaped body.
2 more elements
Dependencies are inferred from the claim text.