Patent ID: 7134579

Claim:
A system for supplying a moisture-curable RTV silicone rubber coating material to a spray head, including: a container having an interior, and an opening to the interior thereof; a quantity of sprayable, moisture-curable RTV silicone rubber coating material contained within said container interior; and a valve assembly comprising: a closure member associated with said opening of said container and having mounting structure thereon; a valve body having an upper end portion defining a cavity extending downwardly from a rim portion thereof, and a lower end portion having a passage in flow communication with said cavity and said container interior, said mounting structure of said closure member being constructed for mounting said valve body, and said valve body being fabricated from a material that is substantially non-absorbing of moisture, and being attached to said closure member mounting structure with said rim portion disposed proximate an overlying section of said mounting structure; a throttle member, fabricated from a material that is substantially non-absorbing of moisture, said cavity of said valve body being dimensioned and configured for seating said throttle member, and said throttle member being seated in said cavity of said valve body for movement between open and closed valve positions and having a sealing portion facing said overlying section of said mounting structure; and sealing means, fabricated from a conformable synthetic resinous material that is substantially non-absorbing of moisture, having a first portion interposed between said overlying section of said mounting structure of said closure member and said rim portion of said upper end portion of said valve body, for providing a permanent gas-tight seal therebetween, and a second portion disposed to engage said throttle member in said closed valve position for providing a temporary gas-tight seal between said overlying section of said mounting structure and said throttle member, said throttle member being spaced away from said sealing means in said open valve position to permit passage of said coating material from said container to a spray head.