US2014069473A1PendingUtilityA1

Dishwasher with disk sprayer

48
Assignee: BALDWIN MARK WPriority: Sep 13, 2012Filed: Sep 13, 2012Published: Mar 13, 2014
Est. expirySep 13, 2032(~6.2 yrs left)· nominal 20-yr term from priority
Inventors:Mark W. BaldwinMike S. HemryBarry E. TullerAmeresh B. Viswanathan
A47L 15/4204A47L 15/4214A47L 15/16A47L 15/4219A47L 15/4246A47L 15/4282A47L 15/4285A47L 15/22A47L 15/4202
48
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Claims

Abstract

A dishwasher for treating dishes according to at least one automatic cycle of operation and including a tub having a bottom wall for at least partially defining a treating chamber in which dishes may be received for treatment, at least one disk sprayer provided on the bottom wall, and having at least one opening through which liquid is emitted into the treating chamber, and a recirculation circuit fluidly coupling the treating chamber to the at least one disk sprayer such that liquid emitted into the treating chamber may be directed back to the disk sprayer for recirculation.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A dishwasher for treating dishes according to at least one automatic cycle of operation, comprising:
 a tub comprising a bottom wall for at least partially defining a treating chamber in which dishes may be received for treatment;   at least one disk sprayer provided on the bottom wall, and having at least one opening through which liquid is emitted into the treating chamber;   a recirculation circuit fluidly coupling the treating chamber to the at least one sprayer such that liquid emitted into the treating chamber may be directed back to the disk sprayer for recirculation; and   at least one of the following located exteriorly of the treating chamber:
 a heater thermally coupled to the recirculation circuit to heat liquid passing through the recirculation circuit; 
 a filter fluidly coupled to the recirculation circuit to filter liquid passing through the recirculation circuit; and 
 a sump fluidly coupled to the recirculation circuit; 
   wherein a placement of the at least one of the heater, filter, and sump exteriorly of the treating chamber frees the bottom wall of the tub for placement of the at least one disk sprayer.   
     
     
         2 . The dishwasher of  claim 1  wherein the at least one disk sprayer further comprises at least one small disk in combination with at least one large disk. 
     
     
         3 . The dishwasher of  claim 1  wherein the at least one disk sprayer comprises multiple disk sprayers. 
     
     
         4 . The dishwasher of  claim 3  wherein the multiple disk sprayers comprise at least four disk sprayers. 
     
     
         5 . The dishwasher of  claim 4  wherein the at least four disk sprayers are arranged one-per-quadrant relative to the bottom wall. 
     
     
         6 . The dishwasher of  claim 5  wherein the at least four disk sprayers are all a same size. 
     
     
         7 . The dishwasher of  claim 6 , further comprising a recirculation inlet opening located in the bottom wall between the at least four disk sprayers and fluidly coupled to a recirculation conduit. 
     
     
         8 . The dishwasher of  claim 4  wherein the multiple disks comprise different size disk sprayers. 
     
     
         9 . The dishwasher of  claim 1  wherein the at least one disk sprayer comprises multiple disk sprayers, with at least two of the multiple disk sprayers being of a different size. 
     
     
         10 . The dishwasher of  claim 1  wherein the at least one disk sprayer comprises at least one large disk sprayer having a diameter substantially equal to a diameter of the bottom wall. 
     
     
         11 . The dishwasher of  claim 10  wherein the at least one large disk is centered relative to the bottom wall. 
     
     
         12 . The dishwasher of  claim 10  wherein the bottom wall is polygonal with at least four corners, and the at least one disk sprayer further comprises at least four small disks arranged one-per-corner on the bottom wall. 
     
     
         13 . The dishwasher of  claim 1  wherein the at least one disk sprayer comprises a rotatable disk sprayer that is rotatable relative to the bottom wall. 
     
     
         14 . The dishwasher of  claim 13  wherein the rotatable disk sprayer is spaced above the bottom wall. 
     
     
         15 . The dishwasher of  claim 1  wherein the at least one disk sprayer comprises a fixed disk sprayer that is fixed relative to the bottom wall. 
     
     
         16 . The dishwasher of  claim 15  wherein the fixed disk sprayer is integrally formed with the bottom wall. 
     
     
         17 . The dishwasher of  claim 15  wherein the at least one disk sprayer further comprises a rotatable disk sprayer that is rotatable relative to the bottom wall. 
     
     
         18 . The dishwasher of  claim 17  wherein the rotatable disk sprayer is spaced above the bottom wall. 
     
     
         19 . The dishwasher of  claim 1  wherein at least two of the heater, filter, and sump are located exteriorly of the treating chamber. 
     
     
         20 . The dishwasher of  claim 19  wherein the filter is located within the sump to filter liquid passing through the sump. 
     
     
         21 . The dishwasher of  claim 20  wherein the filter is rotatable within the sump. 
     
     
         22 . The dishwasher of  claim 21  wherein the heater is thermally coupled to the sump to heat the liquid passing through the sump. 
     
     
         23 . The dishwasher of  claim 22 , further comprising a housing defining the sump and the heater is provided on the housing. 
     
     
         24 . The dishwasher of  claim 1  wherein all three of the heater, filter, and sump are located exteriorly of the treating chamber.

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