A hatch cover adapted to be positioned over a hatch opening on a railroad hopper car is disclosed. The hatch cover includes a rigid panel sized to cover the hopper car hatch opening. The panel for the hatch cover includes an inner skin, an outer skin, and a core material sandwiched between and adhered to the inner and outer skins. Edge structure is secured to the panel for protecting edges of the panel.
申请公布号
WO2004094211(A2)
申请公布日期
2004.11.04
申请号
WO2004US07876
申请日期
2004.03.16
申请人
MINER ENTERPRISES, INC.;GAYDOS, CHRISTOPHER, C.;PALERMO, MICHAEL, R.