B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
141/17
B08B 3/02 (2006.01) A47L 15/00 (2006.01) A47L 15/46 (2006.01)
Patent
CA 1295212
Docket HMS 005 P2 Abstract of the Disclosure A commercial warewasher is disclosed, in which racks of soiled ware, such as dishes, are consecutively washed through a machine cycle which includes recirculating wash water over the ware followed by a fresh water spray rinse. A portion of the wash water is drained and a second portion is retained in the machine after each rack of dishes is washed, and combined with subsequent fresh rinse water spray to provide a volume of water sufficient for pumped wash recirculation for the next rack without cavitation. When a drain valve is opened, water pressure to the wash arm system is reduced, flow through it decreases, and when the pump stops the wash system will drain by gravity to the lowest point in the wash system plumbing. In the meantime the pump discharges wash water until the level of water in the sump and/or its associated outlet pipe reaches the level of the pump impeller eye. The pump begins to cavitate and effectively ceases to pump water. The pump and its drive motor are mounted outside the perimeter of the cabinet, with the pump impeller inverted and the drive motor extending vertically above the pump. This, together with the plumbing lines being located adjacent the bottom wall of the cabinet, leaves a substantial open space between the supporting floor and the underside of the machine, providing for ease of cleaning and maintenance in a crowded kitchen environment.
528537
Gowling Lafleur Henderson Llp
Stero Company (the)
LandOfFree
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