Conveyor-Type Dishwasher and Method for Operating It
First Claim
1. A method of operating a conveyor-type dishwasher in which items to be cleaned are moved through the dishwasher and washing and rinsing operations are performed, prior to a final-rinsing step a spraying step is executed using a recirculated spraying solution, characterized in that the method includes producing a control signal that is contamination dependent or time dependent, the control signal produced so as to cause (i) a filtering operation to be carried out on the recirculated spraying solution or (ii) a regeneration operation to be carried out in connection with the recirculated spraying solution.
2 Assignments
0 Petitions
Accused Products
Abstract
A conveyor-type dishwasher and related method of operation utilizes a recirculated spray solution for a spray operation of items to be cleaned and produces a control signal that is contamination dependent or time dependent to cause a filtering operation to be carried out on the recirculated spray solution or a regeneration operation to be carried out on the recirculated spray solution.
27 Citations
15 Claims
- 1. A method of operating a conveyor-type dishwasher in which items to be cleaned are moved through the dishwasher and washing and rinsing operations are performed, prior to a final-rinsing step a spraying step is executed using a recirculated spraying solution, characterized in that the method includes producing a control signal that is contamination dependent or time dependent, the control signal produced so as to cause (i) a filtering operation to be carried out on the recirculated spraying solution or (ii) a regeneration operation to be carried out in connection with the recirculated spraying solution.
- 9. A conveyor-type dishwasher with a plurality of zones, a conveying device for conveying items through the zones, including at least one spraying zone with an associated recirculating water feed system by which water is fed from a tank, sprayed through spray nozzles onto items to be cleaned and returns to the tank, characterized in that a control system is provided for producing a control signal that is contamination dependent or time dependent, the control signal causing (i) a spray solution filtering operation via a filter arrangement associated with the tank or (ii) a spray solution regeneration operation via a water input line associated with the tank.
Specification