A trapezoidal shaped peripheral seal is inserted in a trapezoidal cast peripheral groove in the valve body. A relief cut-out is disposed beneath the peripheral groove. The sealing function is effected by loading the peripheral seal with the gate so as to deflect the seal into the groove a relief cut out which places the seal in a shear mode.
申请公布号
US5154397(A)
申请公布日期
1992.10.13
申请号
US19910703329
申请日期
1991.05.20
申请人
THOMAS, DAVID L.;SUMRALL, TIMOTHY C.;FLIPPO, DAVID L.;BRYAN, SAMUEL A.
发明人
THOMAS, DAVID L.;SUMRALL, TIMOTHY C.;FLIPPO, DAVID L.;BRYAN, SAMUEL A.