Multiple proportion delivery systems and methods

Abstract

A valve that includes a control spline positioned to move from a first position to a second position and the control spline being axially rotatable in both the first position and second position. The valve also includes a portion of a first fluid mixing cartridge rotatably coupled to at least one portion of the control spline when the control spline is in the second position. The valve includes a portion of a second fluid mixing cartridge rotatably coupled to the at least one portion of the control spline when the control spline is in the second position and the first fluid mixing cartridge is configured to rotate in a different direction than the second fluid mixing cartridge when the control spline is in the second position.

What is claimed is: 
     
         1 . A delivery head, comprising:
 a first plurality of channels extending from a first common supply channel that is connectable to receive a first fluid flow; and   a second plurality of channels extending from a second common supply channel that is connectable to receive a second fluid flow, the second plurality of channels at least partially overlapping the first plurality of channels.   
     
     
         2 . The delivery head of  claim 1 ,
 wherein each of the first plurality of channels includes a plurality of delivery ports;   wherein each of the second plurality of channels includes a plurality of delivery ports.   
     
     
         3 . The delivery head of  claim 2 ,
 wherein the plurality of delivery ports of the first plurality of channels and the plurality of delivery ports of the second plurality of channels are spatially disposed with respect to each other in a checkerboard pattern.   
     
     
         4 . The delivery head of  claim 2 ,
 wherein at least one of the plurality of delivery ports of each of the first plurality of channels is located in a space between two channels of the second plurality of channels.   
     
     
         5 . The delivery head of  claim 1 ,
 wherein at least one delivery port of a channel of the first plurality of channels is located between a first position of the channel overlapped by one of the second plurality of channels and a second position of the channel overlapped by another one of the second plurality of channels.   
     
     
         6 . The delivery head of  claim 1 ,
 wherein the first plurality of channels extend from the first common supply channel in a different direction that a direction in which the second plurality of channels extend from the second common supply channel.   
     
     
         7 . The delivery head of  claim 1 ,
 wherein the first plurality of channels, the first common supply channel, the second plurality of channels, and the second common supply channel are configured to keep the first fluid flow and the second fluid flow separate from each other.   
     
     
         8 . The delivery head of  claim 1 ,
 wherein the first plurality of channels are arranged in columns and each have a longitudinal axis in a first plane; and   wherein the second plurality of channels are arranged in rows with respect to the columns of the first plurality of channels and each have a longitudinal axis in a second plane different from the first plane.   
     
     
         9 . The delivery head of  claim 1 , further comprising:
 a third plurality of channels extending from a third common supply channel that is connectable to receive a third fluid flow, the third plurality of channels at least partially overlapping the second plurality of channels.   
     
     
         10 . A showerhead, comprising:
 a plurality of concentric channels with ports for spraying fluid;   wherein adjacent channels of the plurality of concentric channels are connectable to receive different fluid flows.   
     
     
         11 . The showerhead of  claim 10 ,
 wherein a first concentric channel and a third concentric channel of the plurality of concentric channels in an order from a center of the showerhead outward are connectable to receive a same flow of fluid; and   wherein a second concentric channel of the plurality of concentric channels in an order from the center of the showerhead outward is connectable to receive a different fluid flow than the first concentric channel and the third concentric channel.   
     
     
         12 . The showerhead of  claim 10 ,
 wherein a first concentric channel of the plurality of concentric channels is connectable to receive fluid flow from a source of hot water while a second concentric channel of the plurality of concentric channels is connectable to receive fluid flow from a source of cold water.   
     
     
         13 . The showerhead of  claim 10 ,
 wherein each of the plurality of concentric channels is circular.   
     
     
         14 . The showerhead of  claim 10 ,
 wherein each of the plurality of concentric channels is square.   
     
     
         15 . The showerhead of  claim 10 ,
 wherein each of the plurality of concentric channels includes a supply port on one side for receiving a corresponding fluid flow and a plurality of egress ports on an opposite side from the supply port.   
     
     
         16 . The showerhead of  claim 10 ,
 wherein each of the plurality of concentric channels comprises a pipe.