Abstract: Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

Abstract: The present invention relates to a needle assembly comprising a needle, a needle housing, wherein the needle housing comprises at least one aligning component. The present invention also relates to a needle receiving assembly comprising a fluid conducting element and a fluid conducting element housing, wherein the fluid conducting element housing comprises at least one aligning component. Additionally, the present invention relates to connection assemblies, samplers and systems that can comprise the needle assembly and the needle receiving assembly.

Abstract: Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

Abstract: A needle receiving assembly includes a fluid conducting element housing, a sealing element configured to receive a needle, and a fluid conducting element. The needle receiving assembly is configured to connect to a needle of a needle assembly. The fluid conducting element housing comprises an aligning component configured to contact a needle housing of the needle assembly and to increase alignment between the needle and the needle receiving assembly. The fluid conducting element housing comprises a lateral protruding portion including an inner lateral surface that laterally surrounds a cavity of the fluid conducting element housing and a central protruding portion protruding beyond a base of the fluid conducting element housing and the central protruding portion. The aligning component comprises an aligning inner surface formed by a portion of the inner lateral surface of the lateral protruding portion.

Abstract: Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

Abstract: The present invention relates to a needle assembly comprising a needle, a needle housing, wherein the needle housing comprises at least one aligning component. The present invention also relates to a needle receiving assembly comprising a fluid conducting element and a fluid conducting element housing, wherein the fluid conducting element housing comprises at least one aligning component. Additionally, the present invention relates to connection assemblies, samplers and systems that can comprise the needle assembly and the needle receiving assembly.

Abstract: A connector unit for connecting capillaries, for high-performance liquid chromatography includes a connector capillary, a connector housing, and an annular sealing element. The connector capillary projects through a bore of the connector housing. The annular sealing element is provided on a front end region of the connector capillary and which is composed of a plastically and/or elastically deformable material. The connector capillary has an inner shell composed of a plastically and/or elastically deformable material and an outer shell which engages around the inner shell. The inner shell has a radially outwardly extending front end region which, on its own or together with the annular sealing element can generate a seal between the front end region of the connector capillary and a bushing unit.

Abstract: The invention relates to a connector unit for connecting capillaries, in particular for high-performance liquid chromatography, wherein a sealing element sealing the capillary protrudes at least partially into the interior of the capillary, while a portion of the sealing element that protrudes axially from the capillary can be subjected to a compressive force that is introduced via the capillary to obtain an axial or radial plastic and/or elastic deformation.

Abstract: A plug unit for connecting capillary tubes includes a plug housing that has an axial borehole, a plug capillary tube that projects through the axial borehole, and a sealing element that surrounds the plug capillary tube. The front end of the plug capillary tube is sealed by an elastic and/or plastic deformation of the sealing element against the capillary tube receptacle opening of a bushing unit. A hollow cylindrical pressure piece is provided that surrounds the sealing element in an axial region facing away from the end surface of the plug capillary tube, and the pressure piece has a rearward end side that faces away from the end surface of the plug capillary tube and that can be loaded by the plug housing with an axial pressure force when the plug unit and bushing unit are connected.

Abstract: The invention relates to a connector unit for connecting capillaries, in particular for high-performance liquid chromatography, wherein a sealing element sealing the capillary protrudes at least partially into the interior of the capillary, while a portion of the sealing element that protrudes axially from the capillary can be subjected to a compressive force that is introduced via the capillary to obtain an axial or radial plastic and/or elastic deformation.

Abstract: A connector unit for connecting capillaries, in particular for high-performance liquid chromatography is described. A connector capillary projects through a bore of a connector housing. An annular sealing element is provided on a front end region of the connector capillary and which is composed of a plastically and/or elastically deformable material. The connector housing is formed so as to be releasably connectable to a bushing unit. The connector capillary has an inner shell composed of a plastically and/or elastically deformable material and an outer shell which engages around the inner shell and which is composed of a pressure-resistant material. The inner shell has a radially outwardly extending front end region which, on its own or together with the annular sealing element can generate a sealing action between the front end region of the connector capillary and the annular face side of the capillary receiving opening of the bushing unit.

Abstract: The invention relates to a plug unit for connecting capillary tubes, especially for high-performance liquid chromatography, with a plug housing that has an axial borehole, with a plug capillary tube that projects through the axial borehole of the plug housing, and with a sealing element that has an annular cross section and that surrounds the plug capillary tube, and the front end of the plug capillary tube is sealed by an elastic and/or plastic deformation of the sealing element against the capillary tube receptacle opening of the bushing unit, wherein the plug housing is constructed so that it can be connected detachably to a bushing unit, wherein the front end of the plug capillary tube projects into a capillary tube receptacle opening of the bushing unit when the plug unit and bushing unit are connected and with its end surface essentially aligned opposite a front end of a bushing capillary tube or a bushing capillary tube opening of the bushing unit, and the sealing element is loaded directly or indirect