F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/57
F16K 41/10 (2006.01)
Patent
CA 1236447
A SEALED VALVE ABSTRACT The invention has especial utility for providing com- pletely safe hermetic sealing of actuators extending into highly sensitive or isolative process equipment, such as that using atomic radiation. The invention uses a gen- eral principle taught by the inventor's prior U.S. Pat. No. 3,933,052. The actuator is hermetically sealed by the aid of a flexible diaphragm, and the diaphragm is made safe by pressure compensation. A sealing liquid confined on the outside of the hermetic diaphragm ap- plies the same pressure to the outside face of the dia- phragm as is applied by the process atmosphere to the inside face of the diaphragm. According to the embodi- ment illustrated in that patent, a diaphragm (actually a bellows) entirely separate from the actuator was ex- posed to the process atmosphere to apply its pressure to the sealing liquid. According to the present invention, a diaphragm which accommodates the movement of the actuator and accomplishes the hermetic sealing also transmits the pressure of the process atmosphere to the sealing liquid. The present invention also has some fea- tures of "fail-safe" nature and achieves other simplifica- tion. Also, it provides a temporary seal that permits servicing of the outer packing around the actuator.
439391
Coles Carl R.
Smart & Biggar
LandOfFree
Sealed valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sealed valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealed valve will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1191132