公开(公告)号：US5158022A

公开(公告)日：1992-10-27

申请号：US695902

申请日：1991-05-06

申请人： Richard A. Dugge ,  William U. Casseau ,  John A. Krug

发明人： Richard A. Dugge ,  William U. Casseau ,  John A. Krug

IPC分类号： B61D5/06 ,  B65D90/10 ,  B65D90/34 ,  F16J13/18

CPC分类号： B61D5/08 ,  B65D90/10 ,  B65D90/34 ,  F16J13/18

摘要： A hatch cover assembly includes a vent passageway through a hatch cover for venting the interior of a railroad hopper car, or the like, to the environment. The hatch cover is held in closed position by a locking strap, and the vent passageway is located directly beneath the locking strap to help prevent rain and other environmental contaminants from passing through the vent passageway. An inexpensive baffle assembly is releasably clipped into the vent passageway beneath the locking strap and is comprised of a two piece molded plastic structure with a mesh screen held therebetween to further protect the vent passageway from contaminants.

摘要翻译： 舱口盖组件包括通过舱口盖的排气通道，用于将铁路料斗车厢等的内部排放到环境中。 舱口盖通过锁定带保持在关闭位置，排气通道位于锁定带的正下方，以防止雨水和其他环境污染物通过排气通道。 便宜的挡板组件可释放地夹紧在锁定带下方的通气通道中，并且包括两片模制的塑料结构，其中保持有筛网，以进一步保护排气通道免受污染物的影响。