Drain Cartridge Having Removable Valved System

Abstract

Various embodiments of a cartridge for regulating a fluid flow are described that include an upper housing, and an insert that is user-removable from the upper housing. The cartridge can include one or more valves that are biased in a closed position to prevent odors from escaping the cartridge. The cartridge can also include a fluid trap that is at least partially disposed within the cartridge or fluidly coupled thereto. An ultraviolet light can be inserted within the cartridge to disinfect a fluid passageway of the cartridge.

1 . A cartridge for regulating a fluid flow, comprising:
 a housing;   an insert that is user-removable from the housing;   a first valve configured to be biased in a closed position; and   a second valve fluidly coupled to the first valve, and wherein the second valve comprises a gravity flow valve and is disposed downstream of the first valve.   
   
   
       2 . The cartridge of  claim 1 , wherein the first valve is a gravity flow valve. 
   
   
       3 . The cartridge of  claim 1 , wherein the first valve is disposed within the insert. 
   
   
       4 . The cartridge of  claim 1 , wherein an interior of the insert forms a passageway configured to allow a fluid to flow from the first valve to the second valve. 
   
   
       5 . The cartridge of  claim 1 , wherein the second valve is biased in a closed position. 
   
   
       6 . The cartridge of  claim 1 , wherein the first and second valves are separated by no more than six inches. 
   
   
       7 . The cartridge of  claim 1 , wherein the first valve is electrically operated. 
   
   
       8 . The cartridge of  claim 1 , further comprising an ultraviolet light emitter. 
   
   
       9 . The cartridge of  claim 8 , wherein the ultraviolet light emitter is disposed within the cartridge such that ultraviolet light is radiated on at least part of a fluid passageway of the cartridge. 
   
   
       10 . The cartridge of  claim 1 , wherein at least one of the first and second valves comprises a skirt valve. 
   
   
       11 . The cartridge of  claim 1 , wherein at least one of the first and second valves is biased to be convex in an upstream direction. 
   
   
       12 . The cartridge of  claim 1 , further comprising a fluid trap that is fluidly coupled to the cartridge. 
   
   
       13 . The cartridge of  claim 1 , further comprising a fluid trap that is at least partially disposed within the cartridge. 
   
   
       14 . The cartridge of  claim 1 , further comprising a fluid trap at least partially formed by insertion of the insert into the cartridge. 
   
   
       15 . The cartridge of  claim 1 , wherein at least one of the first and second valves is at least partially opened by a pressure of a fluid against a surface of the respective first or second valve. 
   
   
       16 . The cartridge of  claim 1 , further comprising a lighting system. 
   
   
       17 . The cartridge of  claim 1 , further comprising a valve controller, coupled to a sensor that provides a signal used by the valve controller to operate at least one of the first valve, the second valve, and a vibrator. 
   
   
       18 . The cartridge of  claim 17 , wherein the sensor comprises at least one of a fluid sensor, a temperature sensor, an infrared sensor, an optical sensor, a capacitive sensor, a proximity sensor and an inductive sensor. 
   
   
       19 . A urinal that includes the cartridge of  claim 1 . 
   
   
       20 . A floor drain that includes the cartridge of  claim 1 . 
   
   
       21 . A cartridge for regulating a fluid flow, comprising:
 a housing; and   a skirt valve configured to be biased in a closed position.   
   
   
       22 . The cartridge of  claim 21 , further comprising an insert that is user-removable from the housing. 
   
   
       23 . The cartridge of  claim 22 , wherein the skirt valve is disposed within the insert. 
   
   
       24 . The cartridge of  claim 21 , further comprising a gravity flow valve fluidly coupled to the skirt valve. 
   
   
       25 . The cartridge of  claim 22 , wherein an interior of the insert forms a passageway configured to allow a fluid to flow past the skirt valve. 
   
   
       26 . The cartridge of  claim 21 , further comprising an ultraviolet light emitter. 
   
   
       27 . The cartridge of  claim 26 , wherein the ultraviolet light emitter is disposed within the cartridge such that ultraviolet light is radiated on at least part of a fluid passageway of the cartridge. 
   
   
       28 . The cartridge of  claim 21 , further comprising a fluid trap that is at least partially disposed within the cartridge.