A manway cover assembly to cover an opening of a tank car, defined by an upstanding manway nozzle. The manway cover assembly comprises a manway cover housing, a safety vent and a manway nozzle gasket. The safety vent includes a body mounted on the manway cover housing. The safety vent further includes a surge protector and a rupture disk. The rupture disk is designed to open at a known pressure and allow controlled venting of the pressure in the car. The manway cover housing defines a bore which contains the surge protector of the safety vent. The manway cover housing includes a tube extending downwardly and surrounding the surge protector.
申请公布号
US6076471(A)
申请公布日期
2000.06.20
申请号
US19980162060
申请日期
1998.09.28
申请人
BURIAN, WILLIAM F.;DEGUTIS, ALEX V.;RYAN, MICHAEL S.;BRZEZNIAK, STANLEY A.
发明人
BURIAN, WILLIAM F.;DEGUTIS, ALEX V.;RYAN, MICHAEL S.;BRZEZNIAK, STANLEY A.;HORNE CHARLES L