Patent ID: 7459078

Claim:
A filter device, comprising: at least one filter element having a dirty side; a filter housing receiving said filter element therein and having an inlet opening supplying contaminated fluid to said dirty side of said filter element and an outlet opening for flow of filtered fluid from said filter housing; a fluid container with fluid connections; a bayonet catch on said filter housing and said fluid container for releasably coupling and disengaging said filter housing and said fluid container by rotation of said filter housing relative to said fluid container; a rotary disk valve pivotally mounted in said fluid container to open and close said fluid connections, said disk valve having inlet and outlet connecting sleeves forming extensions of said fluid connections, extending into an interior of said filter housing and transferring rotary motion of said filter housing to drive said rotary disk valve, said inlet and outlet connecting sleeves penetrating said inlet and outlet openings, respectively; inlet and outlet valves at said inlet and outlet openings, respectively, said valves having blocking bodies movable between open positions allowing flow through said openings and closed positions blocking flow through said openings, said valves having closing springs biasing the blocking bodies thereof to the closed positions thereof; and inlet and outlet control lugs on said inlet and outlet connecting sleeves, respectively, projecting into said interior of said filter housing and directly contacting said blocking bodies of said inlet and outlet valves, respectively, when said filter housing is attached to said filter container to move said blocking bodies from said closed positions to said open position against biasing of said closing springs.