Patent ID: 8613425

Claim:
A valve seal member ( 120 ), comprising: a port interface portion ( 201 ) including one or more port apertures ( 202 ); a duct 207 connected to the port interface portion ( 201 ) and in fluid communication with a particular port aperture of the one or more port apertures ( 202 ); a seal portion ( 211 ) connected to the duct 207 and comprising: an upper seal portion ( 213 a ) adapted to encompass an upper valve seat ( 105 a ); a lower seal portion ( 213 b ) adapted to encompass a lower valve seat ( 105 b ); a lip ( 222 a ) formed on the upper seal portion ( 213 a ); and a lip ( 222 b ) formed on the lower seal portion ( 213 b ); wherein the duct ( 207 ) provides a continuous sealed passage from the particular port aperture of the port interface portion ( 201 ) to the upper seal portion ( 213 a ) and the lower seal portion ( 213 b ) of the seal portion ( 211 ); a retainer ( 130 ) adapted to hold the seal portion ( 211 ) in position, with the retainer ( 130 ) comprising: an upper ring ( 133 a ) adapted to retain the upper seal portion ( 213 a ) to an upper valve interior surface, with the upper ring ( 133 a ) including a step ( 134 a ) that receives the lip ( 222 a ) of the upper seal portion ( 213 a ); a lower ring ( 133 b ) adapted to retain the lower seal portion ( 213 b ) to a lower valve interior surface, with the lower ring ( 133 b ) including a step ( 134 b ) that receives the lip ( 222 b ) of the lower seal portion ( 213 b ); and one or more joiners ( 137 ) extending between the upper ring ( 133 a ) and the lower ring ( 133 b ).