Patent ID: 8110016

Claim:
A fluid filter assembly comprising: i) a spiral wound filter module comprising a permeate tube defining a central axis extending along the length of the module between two opposite ends and a cylindrical outer periphery extending along the length between the two opposite ends; ii) a ring-shaped seal disposed about a portion of the outer periphery of the spiral wound filter module, wherein the seal has a width extending between opposing ends and comprises: an inner surface comprising at least two parallel contact surfaces separated by a channel, wherein the contact surfaces form parallel bands about the outer periphery of the filter module and are in sealing engagement with the outer periphery of the filter module, and an outer surface located opposite the inner surface and comprising tapered surfaces extending from an apex toward the opposing ends of the seal, wherein the tapered surfaces of the outer surface comprise either concave or convex surfaces extending from the apex toward the opposing ends of the seal, and wherein the apex is: centrally located between the opposing ends and directly opposite the channel, and extends away from the filter module; and iii) a housing including an inner periphery, wherein the spiral wound filter module and seal are positioned within the housing with the apex of the seal deflected inward into the channel and in sealing engagement with the inner periphery of the housing.