Pop-up drain

Abstract

A pop-up drain includes a stopper assembly, a spring and camming members. The stopper assembly, the spring and the camming members are arranged within a pipe assembly. The spring biases the interaction of the camming members so that depression of the stopper assembly results in the stopper assembly sealing the pipe assembly. A second depression of the stopper assembly results in the stopper assembly moving into a position that unseals the pipe assembly.

1 . A pop-up drain assembly configured to selectively prevent the flow of a liquid through a drain pipe including a first bore and the pop-up drain assembly including:
 a first member including a second bore and a first set of camming members;   a second member at least partially located in the second bore and including a third bore, a second set of camming members and a third set of camming members, said third set of camming members configured to engage said first set of camming members of said first member; and   a stopper assembly including at least one member configured to engage said third set of camming members;   wherein a majority of the liquid travels through at least one of said second bore or said third bore.   
   
   
       2 . The pop-up drain assembly as set forth in  claim 1 , wherein said first member includes a flange and receives a portion of the drain pipe. 
   
   
       3 . The pop-up drain assembly as set forth in  claim 1 , wherein said first member includes at least one trace, said at least one member of said stopper assembly is supported for movement within said at least one trace. 
   
   
       4 . The pop-up drain assembly as set forth in  claim 1  wherein said first set of camming members are formed in an inner surface of said first member. 
   
   
       5 . The pop-up drain assembly as set forth in  claim 4 , wherein said third set of camming members are formed in an outer surface of said second member. 
   
   
       6 . The pop-up drain assembly as set forth in  claim 1  wherein said first member is at least partially located in said first bore, said first member including an outer surface configured complementary to an inner surface of the drain pipe and wherein a majority of the liquid traverses said second bore as the liquid travels through the assembly. 
   
   
       7 . The pop-up drain assembly as set forth in  claim 1  wherein at least a majority of an outer surface of said first member contacts an inner surface of the drain pipe. 
   
   
       8 . The pop-up drain assembly as set forth in  claim 7  wherein at least a portion of an outer surface of said second member contacts an inner surface of said first member. 
   
   
       9 . The pop-up drain assembly as set forth in  claim 7  wherein a majority of the liquid traverses said third bore as the liquid travels through the assembly. 
   
   
       10 . The pop-up drain assembly as set forth in  claim 7  wherein at least a portion of said stopper assembly is located within said second bore. 
   
   
       11 . The pop-up drain assembly as set forth in  claim 1  further including a spring configured to bias said second member in the direction of said first member. 
   
   
       12 . A pop-up drain assembly configured for use in a basin having an opening with an outer pipe including an inner surface defining a first passageway for the draining of a liquid from the basin, the pop-up drain assembly including:
 a first set of camming members located interior to the inner surface;   an actuator member including a second set of camming members, a third set of camming members and a second passageway; at least a portion of said actuator member being located within said first passageway of the outer pipe;   a stopper assembly configured to selectively close the opening of the basin, at least a portion of said stopper assembly being located within said first passageway of the outer pipe;   wherein a majority of the liquid traverses said second passageway as the liquid is drained from the basin.   
   
   
       13 . The pop-up drain assembly as set forth in  claim 12  further including a receiving member, said first set of camming members integrally formed in said receiving member. 
   
   
       14 . The pop-up drain assembly as set forth in  claim 13  wherein said receiving member includes an inner surface defining a third passageway. 
   
   
       15 . The pop-up drain assembly as set forth in  claim 14  wherein said first set of camming members engage said third set of camming members, and at least a portion of said stopper assembly engages said second set of camming members. 
   
   
       16 . The pop-up drain assembly as set forth in  claim 15  wherein said stopper assembly includes at least one extended portion configured to engage said second set of camming members. 
   
   
       17 . The pop-up drain assembly as set forth in  claim 16  further including at least one trace located exterior of an outer surface of said actuating member, wherein said trace is configured to receive at least a portion of said extended portion. 
   
   
       18 . The pop-up drain assembly as set forth in  claim 13  wherein said first set of camming members are formed in an inner surface of said receiving member. 
   
   
       19 . The pop-up drain assembly as set forth in  claim 18  wherein said third set of camming members are formed in an outer surface of said actuating member. 
   
   
       20 . The pop-up drain assembly as set forth in  claim 19  wherein said second set of camming members are formed in an upper surface of said actuating member. 
   
   
       21 . The pop-up drain assembly as set forth in  claim 20  further including a spring, wherein said spring abuts a portion of said actuating member and said spring extends in a direction opposite said third set of camming members. 
   
   
       22 . The pop-up drain assembly as set forth in  claim 13  wherein said receiving member receives at least a portion of the outer pipe. 
   
   
       23 . The pop-up drain assembly as set forth in  claim 12  further including a spring positioned between said actuating member and the outer pipe. 
   
   
       24 . The pop-up drain assembly as set forth in  claim 23  wherein said actuating member includes a landing and the outer pipe includes a landing, said spring extending between said landing of said actuating member and the landing of the outer pipe. 
   
   
       25 . The pop-up drain assembly as set forth in  claim 12  wherein said first set of camming members are integrally formed in the inner surface of the outer pipe. 
   
   
       26 . The pop-up drain assembly as set forth in  claim 25  wherein said actuating member includes an outer surface, at least a portion of said outer surface of said actuating member being in contact with at least a portion of the inner surface of the outer pipe. 
   
   
       27 . The pop-up drain assembly as set forth in  claim 26  wherein at least a portion of said stopper assembly is in contact with the inner surface of the outer pipe. 
   
   
       28 . The pop-up drain assembly as set forth in  claim 25  wherein said first set of camming members are configured to engage said third set of camming members.