A filter unit includes a body portion having a proximal end and a distal end. An engagement protrusion extends from the proximal end. The engagement protrusion includes a first portion that has a first radius of curvature and a second portion opposing the first portion that has a second radius of curvature that is larger than the first radius of curvature. A protruding retention surface is disposed on and extends radially outward from the body portion. The protruding retention surface is adapted to secure the filter unit in a filter head assembly.
申请公布号
US2013068684(A1)
申请公布日期
2013.03.21
申请号
US201113233410
申请日期
2011.09.15
申请人
KRUCKENBERG CHRISTOPHER A.;MORRISON JOHN W.;SPINDLER JEFFREY A.;WHIRLPOOL CORPORATION
发明人
KRUCKENBERG CHRISTOPHER A.;MORRISON JOHN W.;SPINDLER JEFFREY A.