Merck Patent Gmbh

Pascal Roitel

Laurent Moreau

Ichiro Kano

Stephane Dupont

Christian Berducat

Thierry Cassou

Germain Gaydier

Didier Meyer

Christophe Paragot

Jonathan Octave

Emmanuel Feuillas

A connecting mechanism () for a cartridge-type replaceable module () that has at least one fluid port () at each of opposite sides of the module () in a longitudinal direction of the module (). The connecting mechanism () comprises two connector elements () spaced apart in the longitudinal direction of the module () and each provided with at least one fluid connector () configured to releasably inter-engage with a complementary fluid port () of the module () at the respective side thereof, wherein at least one of the connector elements () is movable to perform a translational movement in the longitudinal direction of the module (). The connecting mechanism () further comprises at least one driver element () arranged to engage with the module () and with the at least one movable connector element () such that a rotational or translational movement of the module () engaged with the driver element () causes the translational movement of the movable connector element () via the driver element () to establish/release the inter-engagement of the fluid connector(s) () of that connector element () with the associated fluid port(s) () of the module ().

Connecting mechanism for a water purification cartridge

A flow through fluid purification device () comprising a container () arranged such that fluid can flow through a volume () of the container () from an inlet () to an outlet (), and an inner cylinder () inserted or insertable into the volume () of the container () and defining an interface wall () permeable for radiation with a wavelength in the UV-range, preferably between 150 nm and 200 nm, wherein the container () includes plurality of axially arranged cylinder parts () connected to each other by welding to form an outer cylinder assembly ().

Flow-through fluid purification device

The invention provides an irradiation device () designed to be mounted to an irradiation reactor (), comprising: an irradiation source (), preferably an UV-LED, mounted on a heat conductive substrate (); a disk-like heat sink () configured to removably receive the conductive substrate () such that heat transfer from the substrate () to the heat sink () is possible at a contact surface () and such that the irradiation from the irradiation source () can pass through an opening () of the heat sink () into aninterior volume () of the irradiation reactor () when the irradiation device () is mounted to the irradiation reactor (), wherein the opening () of the heat sink () is closed by a quartz window (); fixation means () releasably biasing the substrate () against the contact surface () of the heat sink (); and a fluid channel () extending along and/or through the heat sink (), wherein the fluid channel () is arranged to communicate with a fluid inlet or outlet port () of the irradiation reactor () and with one or more outlet openings () for discharging the fluid into the interior volume () of the irradiation reactor () or with one ore more inlet openings () for feeding the fluid from the interior volume () of the irradiation reactor () into the fluid channel ().

Irradiation device for irradiation reactor for treating a fluid and irradiation reactor

The invention provides a water purification and dispensing system, preferably for producing ultrapure water and offering the purified water at dispensing sites. The system () comprises a first purification stage () for purifying water to a first water purity grade, a water recirculation loop () including a second purification stage () for purifying water to a second water purity grade higher than the first purity grade and a dispensing portion () for the purified water, and a reservoir () arranged to store the water purified at the first purification stage () through a first connecting flowpath () and to deliver the stored water to the water recirculation loop () through a second connecting flowpath (). A 3-way valve () is provided in the flowpath between the first purification stage () and the reservoir () to selectively block the flow of purified water to the reservoir () and to drain the purified water from the first purification stage (). A third connecting flowpath () is branched from said dispensing portion () and is connected to the first connecting flowpath () upstream of an UV radiation treatment device ().

Water purification and dispensing system and method of operating such system

The invention provides a water purification and dispensing system, preferably for producing ultrapure water and offering the purified water at one or more dispensing sites in a desired volume. The water purification and dispensing system comprises a (closed) water recirculation loop including a water inlet for introducing water to be purified, pumping means for pumping water through said water recirculation loop in a flow direction, water purification means for purifying water downstream of said water inlet, a dispensing portion of the water recirculation loop including one or more outlet(s) for purified water branched from said water recirculation loop downstream of said water purification means, a first valve arranged between each outlet and said water recirculation loop, for controlled dispensing of the purified water from said recirculation loop through the respective outlet, a second valve arranged in said dispensing portion of the water recirculation loop downstream of said first valve(s) and upstream of said pumping means, a bypass passage branched from said water recirculation loop and bypassing said dispensing portion of the water recirculation loop including said first valve(s) and said second valve, and a third valve for controlling the flow rate through said bypass passage.

Growing community of inventors

Strasbourg, France

Pascal Roitel