Whirlpool Corporation
WATER FILTER SYSTEM

Abstract:

A filter unit includes a body portion with first and second engagement surfaces that traverse at least a part of the body portion. The first and second engagement surfaces include a first segment that extends substantially parallel with a longitudinal extent of the body portion and a second segment that extends at an angle relative to the first segment. An engagement protrusion extends from the body portion and has a water inlet and a concave engagement wall with a water outlet. A periphery of the concave engagement wall includes a first portion with a first radius of curvature and a second portion with a second radius of curvature that is larger than the first radius of curvature. A first seal is disposed on a sidewall of the engagement protrusion proximate the water outlet. A first cross-section of the engagement protrusion, taken at the first seal and perpendicular to the longitudinal extent of the body portion, is egg-shaped with only one axis of symmetry. A second seal is disposed on the engagement protrusion and spaced apart from the first seal. A second cross-section of the engagement protrusion, taken at the second seal and perpendicular to the longitudinal extent of the body portion, is egg-shaped.