Evaporative emissions control device with internal seals

Abstract

A hydrocarbon scrubber comprises: a monolith; a seal disposed concentrically around an end of the monolith, wherein the seal comprises an inner surface having a diameter equal to or less than an outer diameter of the monolith, a shoulder member protruding from the seal and physically contacting at least a portion of an end face of the monolith, and a rib member disposed on an outer side of the seal and in physical contact with the shell.

1 . An evaporative emission control device, comprising: 
 a monolith;    a shell;    a seal disposed concentrically around an end of the monolith, wherein the seal comprises an inner surface having a diameter equal to or less than an outer diameter of the monolith, a shoulder member protruding from the seal and physically contacting at least a portion of an end face of the monolith, a flare disposed at an end of the seal opposite the shoulder member, and a rib member disposed on an outer side of the seal and in physical contact with the shell, wherein the seal further comprises a material having a durometer hardness on a Shore A scale of about 20 to about 50.    
     
     
         2 . (Cancelled)  
     
     
         3 . (Cancelled)  
     
     
         4 . The evaporative emission control device of  claim 1 , wherein the seal further comprises a material selected from the group consisting of silicone, fluorosilicone, epichlorohydrin, and combinations comprising at least one of the foregoing materials.  
     
     
         5 . The evaporative emission control device of  claim 1 , wherein the rib member comprises protrusions having a geometry selected from the group consisting of rounded, triangular, pointed, saw-toothed, square, hooked, curved, and combinations comprising at least one of the foregoing geometries.