Pinch valve for a closed container

Claim 1

Device for use with a closed container for dispensing beer contained in said closed container, comprising a resilient discharge tube connected to the lower portion of said closed container for discharging beer contained therein outwardly therefrom, a resilient air inlet tube provided at the lower portion of said closed container adjacent to said resilient discharge tube, an air communicating tube in communication with said resilient inlet tube and also communicating said inlet tube with the space within said container above the level of the beer therein, and a pinch valve means arranged at the lower portion of said container for opening and closing both said resilient discharge and inlet tubes in coupled relationship with each other; wherein the pinch valve comprises a casing, a stationary cylindrical member secured to the casing, a movable cylindrical member slidably fitted on the stationary cylindrical member, said resilient tubes passing transversely through said cylindrical members, supporting elements being mounted on the stationary member for supporting respectively one of the side surfaces of respective resilient tubes, and pressing elements being mounted on the movable member for pressing respectively the other of the side surfaces of respective tubes against said supporting elements respectively whereby the distances between supporting elements and pressing elements are changed to close or open the resilient tubes by actuating the movable member.