Apparatus for mixing liquids in a certain ratio

An apparatus for mixing two liquids in a predetermined mixing ratio, comprising:

• a liquid dispenser that includes
• (a) self-lubricating plastic container,
• (b) liquid level sensing means for sensing levels of a liquid supplied in said container,
• (c) liquid dispensing means for dispensing liquid from said container in a quantity corresponding to a capacity of said container, and
• (d) automatic liquid supply means for automatically supplying liquid from a chemical tank to said container;
• mixing means for mixing precisely the liquids in the precise predetermined mixing ratio;
• liquid mixture draining means for draining the liquid mixture from said mixing means;
• and
• control means for controlling said previously mentioned means.

An apparatus for mixing a combination of liquid chemicals in a predetermined ratio, including

• a first liquid dispenser for dispensing a predetermined amount of a first liquid;
• a second liquid dispenser for dispensing a predetermined amount of a second liquid;
• and
• mixing means for mixing said first and second liquids;
• wherein said first liquid dispenser comprises
• an outer container;
• a dispensing container located within said outer container, an upper edge of said dispensing container being formed with a plurality of spaced recesses;
• supply means for supplying said first liquid to both said outer container and said dispensing container;
• liquid sensor means for determining whether said first liquid in said first liquid dispenser is at a first, second or third predetermined level;
• first delivery means for delivering said first liquid contained within said dispensing container to said mixing means;
• and
• second delivery means for delivering said first liquid contained within said outer container back to said supply means;
• wherein said supply means provides said first liquid until said first level is attained;
• said second delivery means drains said first liquid until said second level is reached, such that said first liquid contained with in said dispensing container is at said third level;
• said first delivery means drains an amount of liquid from said dispensing container corresponding to said third level, and delivers said amount to said mixing means.