Hydraulic control of detergent concentration in an automatic warewashing machine
First Claim
1. An apparatus for maintaining an effective concentration of alkaline detergent in an aqueous medium in a warewashing machine, which apparatus comprises:
- (a) a batch-fill warewashing machine having an aqueous rinse system, an alkaline detergent dispenser and a sump sized for a predetermined volume of the alkaline detergent in the aqueous medium;
(b) a source of the aqueous medium fluidly connected to the rinse system;
(c) means for controlling a flow of the aqueous medium through the rinse system;
(d) a diverter for splitting the flow of the aqueous medium into the two unequal streams and for obtaining a predetermined portion of the aqueous flow from the rinse system and for directing the diverted portion through a metering tip to the alkaline detergent dispenser, thereby to dissolve the alkaline detergent; and
(e) means for directing the dissolved alkaline detergent to the sump;
wherein the detergent is dispensed and directed to the sump only during the rinse cycle and an effective concentration of alkaline detergent is maintained in the warewashing machine sump.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for maintaining an effective concentration of alkaline detergent in an aqueous medium in a warewashing machine, which apparatus comprises a batch-fill warewashing machine having an aqueous rinse system, an alkaline detergent dispenser and a sump sized for a predetermined volume of an aqueous solution of the alkaline detergent in the aqueous medium; a source of the aqueous medium fluidly connected to the rinse system; means for controlling the flow of the aqueous medium through the rinse system; diverting means for obtaining a predetermined portion of the aqueous flow from the rinse system and for directing the diverted portion through a metering cap and volume control to the alkaline detergent dispenser, thereby to dissolve the alkaline detergent; and means for directing the dissolved alkaline detergent to the sump; wherein the detergent is dispensed only in a rinse cycle and an effective concentration of alkaline detergent is maintained in the warewashing machine sump.
41 Citations
6 Claims
-
1. An apparatus for maintaining an effective concentration of alkaline detergent in an aqueous medium in a warewashing machine, which apparatus comprises:
-
(a) a batch-fill warewashing machine having an aqueous rinse system, an alkaline detergent dispenser and a sump sized for a predetermined volume of the alkaline detergent in the aqueous medium;
(b) a source of the aqueous medium fluidly connected to the rinse system;
(c) means for controlling a flow of the aqueous medium through the rinse system;
(d) a diverter for splitting the flow of the aqueous medium into the two unequal streams and for obtaining a predetermined portion of the aqueous flow from the rinse system and for directing the diverted portion through a metering tip to the alkaline detergent dispenser, thereby to dissolve the alkaline detergent; and
(e) means for directing the dissolved alkaline detergent to the sump;
wherein the detergent is dispensed and directed to the sump only during the rinse cycle and an effective concentration of alkaline detergent is maintained in the warewashing machine sump. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification