Abstract: A liquid filter has a filter housing with a housing cup. A filter element of the liquid filter has a filter medium annularly surrounding a longitudinal axis of the filter element. The filter element has an extension part with lock groove. A lock device arranged at the housing cup has a lock element movable radially to the longitudinal axis. The lock element engages the lock groove in a locked state of the lock device and is disengaged in a release state. A filter element for the liquid filter has a filter medium annularly surrounding a longitudinal axis and an extension part with lock groove with rounded cross section. The lock groove is engaged by a lock element, movable radially relative to the longitudinal axis, of a lock device of a housing cup of the liquid filter in a locked state of the lock device and disengaged in a release state.

Abstract: An exchangeable filter of a treatment device has a housing with a housing pot and a housing cover connected to the open side of the housing pot. The exchangeable filter is connectable to a connecting head of the treatment device with a bayonet-type connecting device. The connecting device has a housing connecting part on the housing interacting with a head connecting part of the connecting head for connecting the connecting device. The housing has an inlet for a fluid to be treated connectable to a supply conduit of the treatment head and an outlet for the treated fluid connectable to a discharge conduit of the treatment head. The housing pot has a rim at the open side of the housing pot. The rim radially outwardly surrounds the housing connecting part and axially projects past the housing connecting part in a direction away from the housing bottom.

Abstract: A filter device for treating fluids, in particular for filtering fluids such as fuel, oil, or water, has a housing (56) with a housing pot (58), a housing cover (60), at least one inlet (88) for the fluid to be treated, and at least one outlet (82) for the treated fluid. A connecting head (12) has at least one feed (16) for the fluid to be treated and connectable to the at least one inlet (88), and/or at least one discharge (18). The connecting head (12) and the treatment element (14) can be connected to each other by means of a releasable bayonet-type connecting device (34) through the execution of a rotational/plug-in movement about a connecting axis (20) of the treatment device (10).

Abstract: A filter device for treating fluids, in particular for filtering fluids such as fuel, oil, or water, has a housing (56) with a housing pot (58), a housing cover (60), at least one inlet (88) for the fluid to be treated, and at least one outlet (82) for the treated fluid. A connecting head (12) has at least one feed (16) for the fluid to be treated and connectable to the at least one inlet (88), and/or at least one discharge (18). The connecting head (12) and the treatment element (14) can be connected to each other by means of a releasable bayonet-type connecting device (34) through the execution of a rotational/plug-in movement about a connecting axis (20) of the treatment device (10).

Abstract: A filter for filtering fluid has a filter housing with fluid inlet for fluid to be filtered and fluid outlet for filtered fluid. A filter element arranged in the filter housing separates fluid inlet fluidically from fluid outlet. A bypass valve arrangement is arranged fluidically between fluid inlet and fluid outlet such that it fluidically connects in an open state fluid inlet to fluid outlet. The bypass valve arrangement has a valve closure body arranged movably in the valve housing between a closed position and an open position. The bypass valve arrangement has a valve seat element with valve seat. The valve closure body rests sealingly at the valve seat in closed position. The valve seat element is connected to a part of the valve housing by a mechanical connection realized by relative rotation between valve seat element and part of the valve housing about a valve axis.

Abstract: A connection adapter for connecting a treatment apparatus to a connection head of a treatment device for a fluid is provided with a connecting section that connects to the connection head. A threaded socket section coaxial to an imaginary connecting axis is provided to screw on the treatment apparatus. The threaded socket section has at least one fluid passage channel connecting a fluid-conducting space of the treatment apparatus to a fluid-conducting space of the connection head. The connecting section has at least two screw holes for receiving screws or threaded bolts or the connecting section has a central thread that connects to a connection head-associated central thread. An assembly of connection head and connection adapter is provided. A treatment device provided with connection head and connection adapter is provided.

Abstract: A fluid treatment device has an exchangeable treatment unit and a connection head. A bayonet-type connection device connects connection head and treatment unit to each other by a plug-in/rotation movement about a connection axis of the treatment device and is provided with a housing connection part and a head connection part that operatively engage each other to form a connection of the bayonet-type connection device. Housing connection part and head connection part each have a mutually complementary functional element extending circumferentially about the connection axis and operatively connectable to each other. The bayonet-type connection device has a pretension element for realizing a mechanical pretension pressing the functional elements against each other. A splash guard part is provided that covers at least the connection device.

Abstract: The present disclosure relates to an analytical system with at least three components: a multiwell plate on which the wells are included in an optically transparent area; a frame holding the multiwell plate close to its edge while permitting the plate a certain extent of freedom of movement; a baseplate to which the multiwell plate, but not the frame is firmly fixed via a docking mechanism, such that different expansion of plate and frame can be compensated. A second aspect described herein relates to a method of docking a corresponding multiwell plate held by a frame to a baseplate and subjecting the multiwell plate to a step of a biological or chemical assay within this arrangement.

Abstract: A fluid treatment device has an exchangeable treatment unit and a connection head. A bayonet-type connection device connects connection head and treatment unit to each other by a plug-in/rotation movement about a connection axis of the treatment device and is provided with a housing connection part and a head connection part that operatively engage each other to form a connection of the bayonet-type connection device. Housing connection part and head connection part each have a mutually complementary functional element extending circumferentially about the connection axis and operatively connectable to each other. The bayonet-type connection device has a pretension element for realizing a mechanical pretension pressing the functional elements against each other. The pretension element is a spring element with outwardly projecting spring arms with radially outer end faces provided with a straight section that is tangential to a rim extending in circular shape around the connection axis.

Abstract: A fluid treatment device has an exchangeable treatment unit and a connection head. A bayonet-type connection device connects connection head and treatment unit to each other by a plug-in/rotation movement about a connection axis of the treatment device and is provided with a housing connection part and a head connection part that operatively engage each other to form a connection of the bayonet-type connection device. Housing connection part and head connection part each have a mutually complementary functional element extending circumferentially about the connection axis and operatively connectable to each other. One functional element has an assembly ramp passing into a first support region perpendicular to the connection axis. The other functional element has a slide region adjoined by a second support region perpendicular to the connection axis. In connection end position, first and second support regions are positioned on top of each other relative to the connection axis.

Abstract: The present disclosure relates to an analytical system with at least three components: a multiwell plate on which the wells are included in an optically transparent area; a frame holding the multiwell plate close to its edge while permitting the plate a certain extent of freedom of movement; a baseplate to which the multiwell plate, but not the frame is firmly fixed via a docking mechanism, such that different expansion of plate and frame can be compensated. A second aspect described herein relates to a method of docking a corresponding multiwell plate held by a frame to a baseplate and subjecting the multiwell plate to a step of a biological or chemical assay within this arrangement.

Abstract: A filter device for treating fluids, in particular for filtering fluids such as fuel, oil, or water, has a housing (56) with a housing pot (58), a housing cover (60), at least one inlet (88) for the fluid to be treated, and at least one outlet (82) for the treated fluid. A connecting head (12) has at least one feed (16) for the fluid to be treated and connectable to the at least one inlet (88), and/or at least one discharge (18). The connecting head (12) and the treatment element (14) can be connected to each other by means of a releasable bayonet-type connecting device (34) through the execution of a rotational/plug-in movement about a connecting axis (20) of the treatment device (10).

Abstract: A positioning system for positioning a consumable rack in a diagnostic system is disclosed. The positioning system comprises a rack comprising an upper surface comprising holding positions and a receiving compartment comprising a rectangular chassis comprising front, rear, and two lateral sides. The receiving compartment comprises a holding structure coupled to the chassis to move between first and second positions. The rack comprises sidewalls. At least three sidewalls have a center alignment element. The chassis comprises three chassis alignment elements on the rear and two lateral sides. The holding structure comprises a corner push element between the chassis front and lateral sides to push against a side edge of the rack between two sidewalls when the holding structure is moved from the first position towards the second position forcing the three alignment elements against a chassis alignment element and laterally holding the rack in position by the chassis alignment elements.

Abstract: An exchangeable filter of a treatment device has a housing with a housing pot and a housing cover connected to the open side of the housing pot. The exchangeable filter is connectable to a connecting head of the treatment device with a bayonet-type connecting device. The connecting device has a housing connecting part on the housing interacting with a head connecting part of the connecting head for connecting the connecting device. The housing has an inlet for a fluid to be treated connectable to a supply conduit of the treatment head and an outlet for the treated fluid connectable to a discharge conduit of the treatment head. The housing pot has a rim at the open side of the housing pot. The rim radially outwardly surrounds the housing connecting part and axially projects past the housing connecting part in a direction away from the housing bottom.

Abstract: A filter device for treating fluids, in particular for filtering fluids such as fuel, oil, or water, has a housing (56) with a housing pot (58), a housing cover (60), at least one inlet (88) for the fluid to be treated, and at least one outlet (82) for the treated fluid. A connecting head (12) has at least one feed (16) for the fluid to be treated and connectable to the at least one inlet (88), and/or at least one discharge (18). The connecting head (12) and the treatment element (14) can be connected to each other by means of a releasable bayonet-type connecting device (34) through the execution of a rotational/plug-in movement about a connecting axis (20) of the treatment device (10).

Abstract: An exchangeable filter of a treatment device has a housing with a housing pot and a housing cover connected to the open side of the housing pot. The exchangeable filter is connectable to a connecting head of the treatment device with a bayonet-type connecting device. The connecting device has a housing connecting part on the housing interacting with a head connecting part of the connecting head for connecting the connecting device. The housing has an inlet for a fluid to be treated connectable to a supply conduit of the treatment head and an outlet for the treated fluid connectable to a discharge conduit of the treatment head. The housing pot has a rim at the open side of the housing pot. The rim radially outwardly surrounds the housing connecting part and axially projects past the housing connecting part in a direction away from the housing bottom.

Abstract: A filter device includes in a filter housing a hollow cylindrical filter element having frontal end plates, a flow opening being made in one of the end plates. In order to interlockingly secure a pipe connection piece that communicates with the flow opening, a cover has a radial collar which forms an axial stop for the pipe connection piece.

Abstract: A filter device includes in a filter housing a hollow cylindrical filter element having frontal end plates. A port having a first sealing element is incorporated into a cover the filter housing, said sealing element being arranged coaxially relative to a second sealing element in a flow opening in the end plate.

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: The invention relates to a filter element assembly for filtering a fluid, optionally including water separation. A filter element has at least one annular filter bellows which is flowed through in the radial direction, and at least one end plate arranged on the filter bellows on the end side. At least one circumferential sealing element is arranged on the end plate. The sealing element seals the clean side from the raw side of the filter element. The sealing element is compressed between a first housing part and a second housing part of the filter system, sealing a housing interior from the environment. The invention also relates to a filter system having the filter element assembly with the sealing element.