Abstract: 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.

Abstract: 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.

Abstract: A method of extruding bark and of forming a solid article, solid synthetic fuel or fireplace log comprising from about 60 to 95 percent by weight bark, which comprises physically blending pieces of combustible thermoplastic of an extrudable size with pieces of bark also of an extrudable size and having less than 7 percent preferably less than 2 percent moisture, to form a bark thermoplastic mixture of from about 60 to 95 percent by weight bark and about 2.