<p>A valve in which a rotary valve member includes rollers which support two endless belts to roll along the cylindrical wall of a valve housing as the valve member is opened and closed. The belts seal tightly against the wall and close off inlet and outlet ports when the valve member is in its closed position.</p>
申请公布号
DE3802467(A1)
申请公布日期
1988.08.18
申请号
DE19883802467
申请日期
1988.01.28
申请人
BERGSTROM MFG. CO., ROCKFORD, ILL., US
发明人
AHRENS, ROBERT H., JANESVILLE, WIS.,(VERSTORBEN), US
