Dispensing apparatus

Abstract

A dispensing apparatus to dispense at least one of a first substance and a second substance therefrom includes a head having a first inlet to receive the first substance therethrough, a second inlet to receive the second substance therethrough, and an outlet to expel a mixture of the first substance and the second substance therefrom, with the head configured to vary a ratio of the mixture between substantially all of the first substance and substantially all of the second substance. The dispensing apparatus further includes a first airless chamber to contain the first substance therein, with the first airless chamber fluidly coupled to the first inlet of the head.

1 . A dispensing apparatus to dispense at least one of a first substance and a second substance therefrom, the apparatus comprising:
 a head having a first inlet to receive the first substance therethrough, a second inlet to receive the second substance therethrough, and an outlet to expel a mixture of the first substance and the second substance therefrom, the head configured to vary a ratio of the mixture between substantially all of the first substance and substantially all of the second substance; and   a first airless chamber to contain the first substance therein, the first airless chamber fluidly coupled to the first inlet of the head.   
     
     
         2 . The dispensing apparatus of  claim 1 , wherein the first airless chamber comprises a first cartridge having a first piston removably received therein. 
     
     
         3 . The dispensing apparatus of  claim 1 , further comprising:
 a second airless chamber to contain the second substance therein, the second airless chamber fluidly coupled to the second inlet of the head.   
     
     
         4 . The dispensing apparatus of  claim 3 , further comprising:
 an outer housing having the head connected to the outer housing with the first cartridge and the second cartridge removably received within the outer housing.   
     
     
         5 . The dispensing apparatus of  claim 4 , wherein an end cap is removably secured to the outer housing such that the first cartridge and the second cartridge are removably received within the outer housing. 
     
     
         6 . The dispensing apparatus of  claim 1 , wherein the mixture of the first substance and the second substance comprises toothpaste for oral care. 
     
     
         7 . The dispensing apparatus of  claim 6 , wherein at least one of the first substance and the second substance comprises aloe vera. 
     
     
         8 . The dispensing apparatus of  claim 6 , wherein at least one of the first substance and the second substance comprises a peroxide solution. 
     
     
         9 . The dispensing apparatus of  claim 1 , wherein the head comprises an adjustment mechanism to vary the ratio of the mixture between substantially all of the first substance and substantially all of the second substance. 
     
     
         10 . A method to manufacture a dispensing apparatus that dispenses to dispense at least one of a first substance and a second substance therefrom, the method comprising:
 fluidly coupling a first airless chamber to a first inlet of a head, the heading having the first inlet to receive the first substance therethrough from the first airless chamber and having a second inlet to receive a second substance therethrough; and   the head having an outlet to expel a mixture of the first substance and the second substance therefrom, the head configured to vary a ratio of the mixture between substantially all of the first substance and substantially all of the second substance.   
     
     
         11 . The method of  claim 10 , wherein the first airless chamber comprises a first cartridge having a first piston removably received therein. 
     
     
         12 . The method of  claim 10 , further comprising:
 fluidly coupling a second airless chamber to the second inlet of the head, the second inlet to receive the second substance therethrough from the second airless chamber.   
     
     
         13 . The method of  claim 12 , further comprising:
 connecting the head to an outer housing with the first cartridge and the second cartridge removably received within the outer housing.   
     
     
         14 . The method of  claim 13 , further comprising:
 removably securing an end cap to the outer housing such that the first cartridge and the second cartridge are removably received within the outer housing.   
     
     
         15 . The method of  claim 10 , wherein the mixture of the first substance and the second substance comprises toothpaste for oral care. 
     
     
         16 . The method of  claim 10 , wherein the head comprises an adjustment mechanism to vary the ratio of the mixture between substantially all of the first substance and substantially all of the second substance. 
     
     
         17 . A dispensing apparatus to dispense toothpaste for oral care therefrom having at least one of a first substance and a second substance therefrom, the apparatus comprising:
 a head having a first inlet to receive the first substance therethrough, a second inlet to receive the second substance therethrough, an outlet to expel a mixture of the first substance and the second substance therefrom, and an adjustment mechanism to vary a ratio of the mixture between substantially all of the first substance and substantially all of the second substance;   a first airless cartridge to contain the first substance therein, the first airless cartridge fluidly coupled to the first inlet of the head; and   a second airless cartridge to contain the second substance therein, the second airless cartridge fluidly coupled to the second inlet of the head.   
     
     
         18 . The dispensing apparatus of  claim 17 , further comprising:
 an outer housing having the head connected to the outer housing with the first cartridge and the second cartridge removably received within the outer housing.   
     
     
         19 . The dispensing apparatus of  claim 18 , wherein an end cap is removably secured to the outer housing such that the first cartridge and the second cartridge are removably received within the outer housing. 
     
     
         20 . The dispensing apparatus of  claim 17 , wherein the first airless cartridge has a first piston removably received therein and the second airless cartridge has a second piston removably received therein.