Patent ID: 8282821

Claim:
An oil filter assembly having a filter element through which oil can flow in a radial direction, the assembly comprising; a housing defining a receiving chamber, said housing having two rotary stops, a drain opening and means for spring loading; a supporting tube fixed in said receiving chamber and disposed, structured and dimensioned for supporting the filter element, said supporting tube spring loaded in an axial direction by said spring loading means, said supporting tube disposed, structured and dimensioned for rotation through an angle of rotation defined by said two rotary stops; and a cover element screwed onto said housing, said cover element having carrier sections cooperating with said supporting tube and/or the filter element for rotating said supporting tube through said angle of rotation when said cover element is screwed onto and/or unscrewed from said housing, wherein said supporting tube is disposed for displacement in said axial direction between an operating position and a drain position, wherein, in said operating position, said drain opening position is closed when said receiving chamber is closed by said cover element and, in said drain position, said drain opening is opened when said receiving chamber is opened.