Patent ID: 6921479

Claim:
A fluid filter housing, comprising an essentially tubular central support dome which extends into an interior of the filter housing and forms a duct through which filtered fluid can flow, said central support dome being disposable in an operating position by a retaining claw engaging a projection on the filter housing and therein axially retained in the filter housing, said central support dome being detachable from said projection in a disassembly position such that said central support dome is nondestructively removable from the filter housing, wherein the central support dome is mounted rotatably around a longitudinal axis in the filter housing, and a retaining component arranged in a rotationally restricted manner within the filter housing, said retaining component having a radially inner surface that partially surrounds a radially outer surface of the central support dome, wherein the radially inner surface of the retaining component and the radially outer surface of the central support dome having matching contours that inhibit rotation of said central support dome in the operating position, the central support dome being rotatable into the disassembly position when a clamping force exerted by the retaining component upon the central support dome is exceeded.