Thermal valve

A dispenser for obtaining a solution from a diluting product chemistry and a liquid, comprising:

• a housing;
• a cavity at least partially within the housing for holding the diluting product chemistry;
• a liquid source for providing the liquid to contact the diluting product chemistry to form the solution;
• a collection zone operatively connected to the housing to collect the formed solution;
• a diluting liquid source for providing diluting liquid to the solution in the collection zone;
• and
• a thermal valve assembly operatively connected to the diluting liquid source to automatically introduce varying amounts of diluting liquid to the collection zone based upon the temperature of the liquid to adjust the flow rate of the liquid to control the concentration of the solution.

A thermal valve assembly for automatic adjustment of the flow rate of a diluting liquid to control the concentration of a solution formed from a liquid and concentrated product chemistry, comprising:

• a thermal actuator having a thermal shaft extendable therefrom, the shaft length continuously variable based upon the temperature of the liquid in contact therewith;
• a spring operatively to the thermal shaft;
• and
• a sleeve operatively connected to the spring;
• wherein a change in the temperature causes the shaft to act upon the spring, which provides continuously variable movement of the shaft in a substantially relative relationship to the change in temperature.