Patent ID: 9005341
Filing Date: 2015-04-14
Classification: B01D,F16J,Y10T

Abstract:
1. A sealing device for a control rod passing through an aperture in a wall comprising: the control rod attached between an actuator placed on one side of the wall and a controlled entity placed on the other side of the wall, such that the actuator can control the controlled entity with motion of the control rod, a packing box gas tightly sealed to the control rod with a seal, with the packing box and control rod moveable in relation to the wall; and a flexible member integral to the packing box gas tightly secured to the wall, wherein a play is provided between the aperture in the wall and the control rod, and the packing box includes an opening housing a firm gastight seal between the packing box and the control rod, the gastight seal having at least one sealing ring that provides a seal around the control rod.