Patent ID: 8393889

Claim:
A hot-runner system ( 101 ), comprising: an actuation plate ( 202 ) being movable; a valve stem assembly ( 305 ) installed in the actuation plate ( 202 ), the valve stem assembly ( 305 ) being movable responsive to movement of the actuation plate ( 202 ); an electro-magnetic actuator ( 210 ) being coupled, at least in part, with the actuation plate ( 202 ), the electro-magnetic actuator ( 210 ) being configured to actuatably move the actuation plate ( 202 ); a first stationary plate ( 201 ); and a second stationary plate ( 203 ) being offset from the first stationary plate ( 201 ); wherein: the actuation plate ( 202 ) is located and being movable between the first stationary plate ( 201 ) and the second stationary plate ( 203 ); the valve stem assembly ( 305 ) includes valve stems ( 205 ) installed in the actuation plate ( 202 ), the valve stems ( 205 ) extending through the second stationary plate ( 203 ), the valve stems ( 205 ) being movable between an opened position and a closed position responsive to movement of the actuation plate ( 202 ); and the electro-magnetic actuator ( 210 ) is coupled with: (i) the first stationary plate ( 201 ), (ii) the second stationary plate ( 203 ), and (iii) the actuation plate ( 202 ), the electro-magnetic actuator ( 210 ) being configured to move the actuation plate ( 202 ) relative to the first stationary plate ( 201 ) and the second stationary plate ( 203 ).