Patent ID: 7448515

Claim:
An automatic machine for dosing water and dental alginate, which comprises: a) a water container in which the water is stored: b) means for flowing the water from said container to a water dosing point; c) an alginate container in which the dental alginate is stored, said alginate container having a center and a bottom; d) means for transporting the dental alginate from the bottom of said alginate container to an alginate dosing point which is outside of said alginate container; e) means for distributing the dental alignate over said transporting means; wherein said distributing means comprises: a first rotary roller having a first plurality of radially protruding extensions, said first roller being mounted inside said alginate container and rotating in a first direction; a second rotary roller having a second plurality of radially protruding extensions, said second roller being mounted inside said alginate container and being laterally separated from said first rotary roller; wherein said second rotary roller rotates in a second direction opposite to the first direction; a double ribbon worm mounted inside said alginate container and centrally located therein, said double ribbon worm being disposed between and under said first and second rotary rollers; and, means for rotating said double ribbon worn and said first and second rotary rollers, whereby, as said first and second rollers rotate, said extensions thereof move the dental alginate to the center and toward the bottom of said alginate container, where the dental alginate is received by said double ribbon worn, which homogenously distributes the dental alginate over said transporting means; and f) a control unit being electrically connected to: i) said flowing means, ii) said transporting means, and iii) said distributing means; wherein said control unit operates said flowing means in order to dose a predetermined amount of water from said water container to the water dosing point; then said control unit operates said distributing means in order to move the dental alginate inside said alginate container and homogenously distribute the dental alginate over said transporting means, said transporting means are also operated by said control unit in order to carry a predetermined amount of the dental alginate from the bottom of said alginate container to the alginate dosing point, and once the predetermined amount, of the alginate has been dosed, said control unit operates said transporting means in order to return any amount of the alginate remaining in said transporting means to said alginate container.