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US 2015/0251671 A1Published application
End-of-car energy management system for railcars
AssigneeCanadian National Railway Company
InventorDarrell ILER
Life of this patent
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Abstract
An end-of-car system for railcars is provided comprising an asymmetric draft gear mechanism offering shock absorption to a railcar when the latter is subjected to buff or draft forces. The end-of-car system may be retrofitted to railcars having a different type of shock absorption system.
Claims17
An end of railcar energy management system, comprising a draft gear unit, the end of railcar energy management system being:
- (1) responsive to a buff force to compress over a buff stroke;
- and
- (2) responsive to a draft force to expand over a draft stroke;
- wherein the buff stroke is greater than the draft stroke.
1 more element
Dependencies are inferred from the claim text.