Metering dispenser devices for fluids

Claim 1

A HAND-TYPE METERING DISPENSER COMPRISING A MATERIAL CONTAINER, A FLOWABLE MATERIAL TO BE DISPENSED AND A DISPENSING MECHANISM, SAID MECHANISM COMPRISING A MULTIPLICITY OF ROTATABLE METERING CAVITIES DISPOSED AT THE BOTTOM OF SAID CONTAINER WHEN IN ITS NORMAL UPRIGHT POSITION REFILLABLE FROM THE MATERIAL IN THE DISPENSER CHAMBER BY GRAVITY, VERTICALLY DISPOSED ROTATABLE SELECTING MEANS HAVING AN INDICATOR TO EFFECT ROTATION OF SAID METERING CAVITIES, SAID SELECTING MEANS DEFINING A DISCHARGE PASSAGE OPEN AT ITS UPPER END IN THE NORMAL UPRIGHT AT REST POSITION OF THE DEVICE, EACH CAVITY HAVING A SPECIFIC VOLUME AND ITS INDIVIDUAL FILLING OPENING, MEANS INCLUDING A STATIONARY PLATE (6) HAVING A CIRCULAR STOT (44) ADAPTED TO AT TIMES TO REGISTER WITH THE FILLING OPENINGS OF A PLURALITY OF SAID METERING CAVITIES, SAID SELECTING MEANS SELECTING ONE OR MORE OF THESE VOLUMES TO BE SIMULTANEOUSLY DISCHARGED THROUGH SAID DISCHARGE PASSAGE, AND MEANS FOR PASSING THE DISCHARGED MATERIAL IN SAID SELECTED VOLUMES THROUGH SAID DISCHARGE PASSAGE TO A LOCATION EXTERNALLY OF THE DISPENSER BY HAND INVERSION OF SAID MATERIAL CONTAINER.