Abstract: A household mixer-blender includes a housing 1 with a reception seat 3. The housing contains an electric motor unit 4 whose output shaft projects into the seat 3. A removable bowl 7 includes a base 9 with a sidewall 10 and is urged to interlock in operating condition on the seat. A central part 12 of the base 9 carries a rotating tool 13 integral with shaft 14 passing through the electric motor unit 4 and base 9. A first safety device includes at least one retractably mounted blocking member 17 is mounted in the reception seat 3. The blocking member is designed to have a first inoperative position in which it is retracted by an actuating member 22 integral with bowl base 23 when the bowl 7 is properly fixed to the base 9, as well as an operative position in which the blocking member is no longer controlled by the actuating member 22 when the bowl 7 is not on the base 9 or is not properly fixed to such base.

Abstract: A dispenser comprises a ground grain container positioned in a matching seat recess in a housing and at least one blade rotated by a motor in the housing and capable of transferring, on rotation, a measure of ground grains through a flow aperture in the container to an outlet in the housing seat recess. The container is removably fitted into the seat recess of the housing through the use of two rotary, mutual coupling elements located at the bottom of the container and at the base of the seat recess of the housing respectively, and connected to the blade and to the motor respectively. The container also comprises elements for closing the flow aperture when the motor is stopped and for opening it when the motor is started. The dispenser is particularly useful in automatic coffee machines.