Inventors:
Leander L. Keller - Laplace LA
Assignee:
Kaiser Aluminum & Chemical Corporation - Oakland CA
International Classification:
F16K 2902, F16K 3153
Abstract:
An improved, motorized Lunkenheimer valve is provided having two independently actuated drive means for operating the valve, one of which moves the valve stem and disc longitudinally along the axis of the stem and the other of which rotates the stem and disc about the longitudinal axis of the stem. The two drive means can be operated concurrently to effect more rapid opening or closing, and countercurrently to provide a continuous grinding operation when the valve is in the closed position.