Patent ID: 6192990
Filing Date: 2001-02-27
Classification: A62C,B64D

Abstract:
A valve comprising:a) an inner assembly comprising a base plate spaced apart from a top plate, the base plate and the top plate defining therebetween an open side portion of the inner assembly, the base plate defining an outlet; and,b) an outer assembly comprising solid side walls, the outer assembly being movable with respect to the inner assembly between an open position and a closed position, an upper portion of the solid side walls being adapted to sealably cooperate with the top plate only when the outer assembly is in the closed position, a lower portion of the solid side walls being adapted to sealably cooperate with the base plate only when the outer assembly is in the closed position, wherein in the open position flow through the valve is permitted through the open side portion and the outlet of the outer assembly, and in the closed position flow through the valve is prevented by sealing engagement between the solid side walls of the outer assembly and the top plate and by engagement between the solid side walls and the base plate of the inner assembly.