| 摘要 |
A device is provided for measuring and dispensing granular or powdered materials, such as coffee or powdered detergent. The device includes a body member which defines a hopper for receiving the granular material. The hopper includes a discharge opening and a discharge port disposed below the discharge opening. A dispensing cylinder is rotatably mounted in the body member between the hopper discharge opening and the discharge port. The cylinder is rotatable between a normally shut position and a fill position. The cylinder includes a first non-movable circumferential section which is maintained below the hopper discharge opening and the normally shut position of the cylinder. The cylinder includes a second movable circumferential section which is disposable below the discharge opening and the fill position of the cylinder. The second circumferential section is movable relative to the longitudinal axis of the cylinder and defines a variable volume cavity in the cylinder for receiving granular material from the hopper. A biasing device is configured with the cylinder to exert a constant closing force to maintain or return the cylinder to its normally shut position. An operable control device is configured with the second movable section of the cylinder so as to change the volume of the cavity which is presented to the discharge opening of the hopper. An operable turning device is also configured with the cylinder so that an operator can rotate the cylinder to its full position in opposition to the closing force of the biasing device. In this manner, granular material flows from the hopper into the cavity and, wherein, upon release of the turning device, the cylinder is caused by the biasing element to rotate to its normally shut position with any granular material carried in the cavity being dumped out through the discharge port.
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