Propellant filling and sealing valve

Details Propellant filling and sealing valve Propellant filling and sealing valve

B - Operations, Transporting

65

D

226/64.3

B65D 51/16 (2006.01) B65D 83/14 (2006.01)

Patent

CA 1275078

ABSTRACT OF THE DISCLOSURE A non-venting propellant filling and sealing valve is adapted to be seated in a propellant filling hole in a bottom wall of a container and permits pressurization of a container through the hole and thereafter seals the container. The propellant filling and sealing valve includes an umbrella sealing portion, a stem portion and shoulder portions in a collar around the stem portion. The umbrella sealing portion is employed to selectively engage, separate from, and then make a generally annular seal with the interior surface of the bottom wall of the container. The stem portion is used to position the umbrella sealing portion around the filling hole and has axially extending grooves therein for conducting pressurizing fluid to the interior of the container. The shoulder portions in the collar bear against the outer surface of the bottom wall to cause the umbrella sealing portion to engage the interior surface of the bottom wall and the grooves extending axially through the collar and along the stem portion allow fluid access along the stem portion for the pressurizing fluid to enter the container. The method of pressurizing and sealing a pressurized container utilizes the filling and sealing valve described above.

527137

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