发明名称 Railroad freight car draft gear assembly
摘要 A railcar draft gear assembly having an axially elongated spring assembly comprised of an axially stacked array of individual spring units and further including cooperating instrumentalities for maintaining the spring assembly generally axially aligned with a longitudinal axis of the railcar draft gear assembly during operation of the draft gear assembly while maintaining the individual spring units in generally aligned relation relative to each other.
申请公布号 US2013153526(A1) 申请公布日期 2013.06.20
申请号 US201113374160 申请日期 2011.12.14
申请人 WILT DONALD E.;SALIS KEITH A.;HANSON LAWRENCE W. 发明人 WILT DONALD E.;SALIS KEITH A.;HANSON LAWRENCE W.
分类号 B61G9/14;B61G9/12 主分类号 B61G9/14
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