Abstract:
A metering tap comprising a housing and a rotatable valve disposed within said housing, said housing having an inlet and an outlet, the housing and the rotatable valve forming a chamber of a preselected volume wherein in a priming condition the rotatable valve is oriented whereby the inlet is open and the outlet is closed, wherein in an intermediate condition the rotatable valve is oriented whereby the inlet is closed and the outlet is closed, and wherein in a dispensing condition the rotatable valve is oriented whereby the inlet is closed and the outlet is open.
Abstract:
The invention concerns a dosing unit for a powder dispenser comprising two dosing chambers (2,3) each chamber comprising : - one upstream inlet (21, 31) and one downstream outlet (22, 32), - an upstream means (23, 33) for opening and closing the inlet, - a downstream means (24, 34) for opening and closing the outlet, the upstream means (23, 33) closing the inlet (21, 31) when the downstream means (24, 34) opens the outlet (22, 32) and reciprocally, wherein the upstream means (23) of the first chamber closes the first chamber (2) when the upstream means (33) of the second chamber opens the second chamber (3) and reciprocally.
Abstract:
Es wird eine Tropfendetektionseinrichtung (11, 11a, 11b) zur Detektion von aus einer Düse eines Dosierventils (DV), vorzugsweise eines Mikrodosierventils,austretenden Tropfen (TR) beschrieben. Die Tropfendetektionseinrichtung (11, 11a, 11b) umfasst eine Signalerzeugungseinheit (20), welche dazu eingerichtet ist, ein Trägersignal (TS) mit einer definierten Pulsfrequenz zu erzeugen. Zudem weist die Tropfendetektionseinrichtung (11, 1a, 11b) eine Modulationseinheit (30, 30a) auf, welche dazu eingerichtet ist, ein durch eine physikalische Wechselwirkung des Trägersignals (TS) mit einem zu detektierenden Tropfen (TR), moduliertes Signal (MS) zu erzeugen. Weiterhin umfasst die Tropfendetektionseinrichtung (11, 11a, 11b) eine Auswertungseinheit (50), welche dazu eingerichtet ist, unter Berücksichtigung der definierten Pulsfrequenz auf Basis des Messsignals (MS) zu ermitteln, ob ein Tropfen (TR) von dem Dosierventil (DV) abgegeben wurde. Es wird auch ein Verfahren (600) zum Detektieren eines Tropfens (TR) eines Dosierventils (DV) beschrieben.
Abstract:
A system for separating a sample and collecting the separated sample. The system includes an ultracentrifuge having a cylindrical rotor. The system includes a gradient delivery assembly for delivering a gradient solution to the ultracentrifuge rotor, and a sample delivery assembly for delivering the solution containing the sample to the ultracentrifuge rotor, he system includes a fraction collection assembly for collecting discrete volumes of the separated sample. The system includes a processor for controlling operation of the ultracentrifuge, as well as the gradient delivery assembly, the sample delivery assembly, and/or the fraction collection assembly.
Abstract:
A system for separating a sample and collecting the separated sample. The system includes an ultracentrifuge having a cylindrical rotor. The system includes a gradient delivery assembly for delivering a gradient solution to the ultracentrifuge rotor, and a sample delivery assembly for delivering the solution containing the sample to the ultracentrifuge rotor, he system includes a fraction collection assembly for collecting discrete volumes of the separated sample. The system includes a processor for controlling operation of the ultracentrifuge, as well as the gradient delivery assembly, the sample delivery assembly, and/or the fraction collection assembly.
Abstract:
A system for separating a sample and collecting the separated sample. The system includes an ultracentrifuge having a cylindrical rotor. The system includes a gradient delivery assembly for delivering a gradient solution to the ultracentrifuge rotor, and a sample delivery assembly for delivering the solution containing the sample to the ultracentrifuge rotor, he system includes a fraction collection assembly for collecting discrete volumes of the separated sample. The system includes a processor for controlling operation of the ultracentrifuge, as well as the gradient delivery assembly, the sample delivery assembly, and/or the fraction collection assembly.
Abstract:
Apparatus for filling cartons with a thick liquid, such as yoghurt, which may contain solid particulates, such as pieces of fruit, comprises a metering valve (10) connected by a port (14) to a pump whereby the liquid is sucked into the valve (10) through an inlet port (12) and then discharged through an outlet port (13). The alternate opening and closing of the inlet (12) and outlet (13) ports is controlled by shoes (15, 16) of a valve member (18) which is given oscillating rotary motion by an actuator (31). A pinion (30) non-rotatably fixed to the valve member shaft (18) is oscillated by racks (42, 43) reciprocated by pistons (34, 35) under the control of a five-port pneumatic valve (26). In accordance with the invention the valve member (18) is also moveable to a third position in which none of the ports (12, 13, 14) is obturated by the shoes (15, 16) to enable the valve (10) to be flushed with cleaning fluid. The inner surface (23) of the valve body is frusto-conical and the valve member (18) can be displaced axially to take the shoes (15, 16) out of contact with said inner surface (23) during the cleaning process. In a modification the shoes (15, 16) are replaced by a circumferentially apertured annulus.
Abstract:
Vorrichtung zum Ausbringen eines flüssigen Mediums (26) aus einem Behältnis (1) mit einem Gehäuse (13), einer darin aufgenommenen Dosiertrommel (2) und einer Dichtscheibe (14) wobei das Gehäuse (13) einen Trommelauslass (3) und eine Systembelüftung (22) aufweist, und die Dichtscheibe (14) eine Belüftungsöffnung (12) und einen Trommeleinlass (4) aufweist, wobei die Dosiertrommel (2) eine Dosierkammer (5), einen Kammerauslass (6) und einen Kammereinlass (7) aufweist, wobei die Dosiertrommel (2) einen Drehschieber (8) umfasst, wobei der Drehschieber (8) in einer ersten Arbeitsposition den Trommeleinlass (4) mit dem Kammereinlass (7) verbindet und den Kammerauslass (6) schliesst und dabei eine Belüftung des Behältnisses (1) und eine Entlüftung der Dosierkammer (5) erfolgt, und in einer zweiten Arbeitsposition die Dosiertrommel (2) den Kammereinlass (7) schliesst und den Trommelauslass (3) mit dem Kammerauslass (6) verbindet und dabei eine weitere Belüftung der Dosierkammer (5) erfolgt und der Belüftungskanal (11) mit der Systembelüftung (22) verbunden ist.
Abstract:
The present invention describes an apparatus (104) to enable metered dispensing of liquid. The apparatus includes a first chamber defined by a first cylinder (106) and having a first opening, a second chamber defined by a second cylinder (108) and having a second opening, the second cylinder being enclosed within said first cylinder; and a lid member (110) co-operating with the second chamber to define a collection area. In a first state, the first and the second opening coincide with each other to define a path for allowing a metered quantity of the liquid to flow from a liquid source (102) to the second cylinder for collection in the collection area. In the second state, the second cylinder is movable with respect to the first cylinder or vice-versa to define a second state, where the first and the second opening do not coincide with each other to restrict the path.
Abstract:
Device for dispensing of a dose of a specified quantity of fluid from a container or bottle, adapted for mounting on an outlet of a container or bottle comprising an inner pipe (106) containing an opening that extends into the container or bottle, a connection piece (104) mountable on the outlet of the container or bottle, a top hat (101) comprising an outlet (102) in a mouthpiece and a pipe section (118) reaching down into the inner pipe (106), and circumferential side wall (103) slidable mounted along the connection piece (104). A method of operating the device is also disclosed.