Valve

A valve which comprises:

• (a) a hollow valve body having a cavity therein;
• (b) at least one flat valve disk received therein, said flat valve disk having a pair of parallel faces and having a generally circular cross section with an open passage therethrough;
• (c) inlet and outlet passages through said valve body adapted to be aligned with the cavity thereof to communicate through said flat valve disk;
• (d) said valve body having a channel surrounding the peripheral edge of said valve disk,
• (e) said valve disk having a drive pin secured rigidly therein and extending into said surrounding channel,
• (f) a plurality of rolling bearings in said surrounding channel in abutting relation to each other and extending from abutting relation to said drive pin on one side thereof to abutting relation on the other side of said pin,
• (g) said pin having its outer end shaped in a curvature corresponding to the shape of said bearings and cooperating with said bearings to transmit motion from said bearings to said disk,
• (h) said bearings being in load supporting relation to said disk and individually rotatable and collectively movable with said disk,
• (i) valve operator means extending into said valve body in intersecting relation to said channel and including engaging means adapted to engage said rolling bearings to transmit force directly from bearing to bearing to impart rotation to said flat valve disk between a closed and open position.