Patent ID: 9265977
Filing Date: 2016-02-23
CPC Classification: A62C,B64D

Claim Text:
1. 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 the inner assembly further including at least one sheave; 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; c. a lifting member connected to the outer assembly and disposed across an interior thereof; d. an electrical motor mounted to the inner assembly and having an output shaft and a drum connected to the shaft and being operable to rotate the drum in response to electrical control signals, e. a cable received on the drum and the at least one sheave and defining a closed loop as the cable runs around the drum and the at least one sheave, wherein the lifting member is connected to a point on the cable such that rotation of the cable in one direction causes the outer assembly to move towards the open position, and rotation of the cable in the opposite direction causes the outer assembly to move towards the closed position; and f. an electrical conduit connected to the motor to conduct electrical control signals from a control input device to the motor.