Fluid filter system

Abstract

An endcap including a first plate member including a radial inner portion, a radial outer portion, and defining a longitudinal axis. The endcap also includes a flange disposed between the radial inner and outer portions of the first plate member and projecting axially along the longitudinal axis in a first direction. The endcap also includes a first seal member disposed adjacent the flange. The first seal includes a first portion thereof engaged with an axial facing surface of the first plate member and a second portion thereof engaged with a radially facing surface of the flange. The endcap further includes a second plate member disposed radially outward of the radial outer portion and a second seal member disposed adjacent the second plate member including at least a portion thereof axially spaced from the axially facing surface of the first plate member in a second direction along the longitudinal axis opposite the first direction.

1 - 11 . (canceled) 
     
     
         12 . A filter assembly for a container filter system configured to be received by a base, the filter assembly comprising:
 a sleeve defining an interior space and a sleeve axis;   a filter medium surrounding the sleeve; and   a first endcap attached to the sleeve; the first encap including:   an annular sidewall oriented substantially perpendicular to the first member and covering a portion of filter medium;   an outer wall spaced aparat from and encircling the first member;   a plurality of arms extending from the sidewall to the outer wall, the arms and the sidewall and the outer wall defining apertures in the first endcap;   a firs seal member encircling the perimeter of the endcap and including first, second and third sealing surfaces, the first sealing surface configured to receive a first radially sealing surface of the base when the base receives the container, the second sealing surface configured to receive a container sealing surface and the third sealing surface configured to receive an axial sealing surface of the base; and   a second seal member disposed on the top surface of the endcap and substantially extending above a plane containing the first seal.   
     
     
         13 . The filter assembly of  claim 12 , each arm further comprising a fin portion having a first and second bottom surfaces that together form a first reflex angle, the fin portion contiguous to the sidewall. 
     
     
         14 . The filter assembly of  claim 13 , wherein the reflex angle is less than about 270°. 
     
     
         15 . The filter assembly of  claim 14 , wherein the plurality of arms are evenly spaced around the sidewall. 
     
     
         16 . The filter assembly of  claim 12  further comprising a ledge perpendicular to the outer wall, wherein at least a portion of the ledge is received inside the first seal member. 
     
     
         17 . (canceled) 
     
     
         18 . The filter assembly of  claim 12 , wherein the second seal member includes a series of dovetails, and the flange includes a series of dovetail recesses that mate with the dovetails of the second seal member. 
     
     
         19 . The filter assembly of  claim 18 , wherein the second seal is positioned on the endcap to fully receive a second radial sealing interface of the base when the first seal member receives the axial sealing surface of the base. 
     
     
         20 . (canceled)