Abstract: A filter system (100) has at least one filter element (10), a filter housing (108) having at least one first housing part and one second housing part, in particular a lid (110), as well as a coupling device (50). The coupling device (50) thereby has at least one first coupling part (60) and at least one second coupling part (70) that corresponds to it for removable coupling of the at least one filter element (10) to the second housing part (110). The first coupling part (60) has one or a plurality of first latching means (62) and control surfaces (64). The second coupling part (70) has one or a plurality of second latching means (72) that can be brought into operative connection with the one or a plurality of first latching means (62) and control surfaces (64).

Abstract: A filter system has a filter element in a filter housing having a coupling device configured to detachably couple and mount the filter system onto a receiving member external to the filter system. The coupling device has one or more inwardly projecting coupling elements which lockably engage with coupling contours of the receiving member by a sliding-rotating movement.

Abstract: A filter system (100) has at least one filter element (10), a filter housing (108) having at least one first housing part and one second housing part, in particular a lid (110), as well as a coupling device (50). The coupling device (50) thereby has at least one first coupling part (60) and at least one second coupling part (70) that corresponds to it for removable coupling of the at least one filter element (10) to the second housing part (110). The first coupling part (60) has one or a plurality of first latching means (62) and control surfaces (64). The second coupling part (70) has one or a plurality of second latching means (72) that can be brought into operative connection with the one or a plurality of first latching means (62) and control surfaces (64).

Abstract: A fluid filter system has a filter element disposed in a filter housing with cover. A coupling device is provided with coupling element and corresponding coupling receptacle. The coupling device has a locking position and a release position. The coupling element engages the coupling receptacle in the locking position. The coupling element is released from the coupling receptacle in the release position. In the locking position, filter element and cover are coupled to each other. A locking device is provided with locking element and corresponding locking receptacle. The coupling device is moveable from the release position into the locking position by rotating the coupling element relative to the coupling receptacle about an axial direction and is releasable by rotating the coupling element relative to the coupling receptacle about the axial direction. The locking element locks the coupling device in the locking position by engaging the locking receptacle.

Abstract: The invention relates to a connecting device (10) for connecting two pipe end sections (12, 13) in a fluidically sealed manner. The connecting device (10) has retaining element which can be fitted to a first pipe end section (12) by means of a bayonet connection. The retaining element has a strap (46) which can be fixed to a second pipe end section (13) by means of a screw (58) of the connecting device (10). The connecting device (10) is therefore particularly simple from a constructive point of view, creates a sealed connection, and can also be easily fitted in restricted condition.