Abstract:
A pump device is provided including: a unitary pump frame; an electromagnet arrangement that includes a winding wrapped around a portion of the unitary pump frame; a diaphragm assembly coupled to the unitary pump frame, which includes a movable diaphragm and a manifold; and a pump arm having a proximal end coupled to the unitary pump frame and a distal end supporting a permanent magnet to interact with the electromagnet arrangement to cause the pump arm to swing back and forth during operation to displace the diaphragm and discharge an air stream from the pump device. Related methods of manufacture are also provided.
Abstract:
Haltevorrichtung (1) für zumindest einen Träger (2) der Materialien wie Glas, Kunststoff, Silizium, pyrolytischen Graphit und/oder Metall umfasst, wobei der Träger (2) zur Aufnahme von einer oder mehreren organischen und/oder anorganischen Proben (3) geeignet ist, wobei diese Haltevorrichtung (1) Angriffsflächen (4), die durch Greifer eines Roboters beaufschlagbar sind, und je zwei im Wesentlichen parallel zu einander verlaufende Längswände (7) und Querwände (8) umfasst. Erfindungsgemässe Haltevorrichtungen sind dadurch gekennzeichnet, dass sie rahmenförmig gebaut sind, indem der Bereich zwischen den Längs- und Querwänden als eine, die Vorrichtung vollständig durchdringende Öffnung ausgebildet ist bzw. dass sie plattenförmig gebaut sind, indem der Bereich zwischen den Längs- und Querwänden als Tragfläche ausgebildet ist, welche zumindest eine Vertiefung (11) zur Aufnahme eines Trägers (2) und im Wesentlichen parallel zu den Längswänden (7) und/oder Querwänden (8) verlaufende Zwischenwände (9) umfasst und dass jeweils die beiden Längs- und die beiden Querwände an ihrem Aussenflächenprofil (5) zumindest je eine Angriffsfläche (4) aufweisen.
Abstract:
Apparatus for delivering a fluid, especially for delivering colourants or the like to a premixer stage of plastics forming equipment, for example an injection moulder of extruder is described. The apparatus includes a fluid supply means (4, 200) connected to a reservoir (8, 208) which is arranged to concertina between minimum and maximum volume conditions. The reservoir (208) is connected via pipeline (24) and peristaltic pump (26) to a delivery means which is arranged to deliver the fluid to a desired location. When the fluid supply means (200) is empty, the level of fluid in the reservoir (208) will fall below the level of a capacitance sensor (32) which will sense the presence of air and cause a signal to be output to alert an operator to change fluid supply means (4). The fluid supply means may be changed before the reservoir is empty of fluid and, accordingly, the process may be operated continuously, even during the replacement of a reservoir (4).
Abstract:
Apparatus for delivering a fluid, especially for delivering colourants or the like to a premixer stage of plastics forming equipment, for example an injection moulder of extruder is described. The apparatus includes a fluid supply means (200) connected to a reservoir (208) which is arranged to concertina between minimum and maximum volume conditions. The reservoir (208) is connected via pipeline (24) and peristaltic pump (26) to a delivery means which is arranged to deliver the fluid to a desired location. In normal operation, fluid supply means (200) supplies fluid into reservoir (208). When however the fluid supply means (200) is empty, the level of fluid in the reservoir (208) will fall below the level of a capacitance sensor (32) which will sense the presence of air and cause a signal to be output to alert an operator to change fluid supply means (4). The fluid supply means may be changed before the reservoir is empty of fluid and, accordingly, the process may be operated continuously, even during the replacement of a reservoir (4). After replacement of a fluid supply means (4), the reservoir (208) is moved towards its minimum volume, to expel air into the fluid supply means (4), so that the reservoir (208) can be filled with fluid from the reservoir and there is substantially no air in the reservoir to become entrained with fluid as it passes via peristaltic pump (26) to a desired location.
Abstract:
An insert of a cartridge for use with a liquid diffusing device is provided. The insert includes a body, an inlet provided in the body to receive diffused liquid generated within the cartridge during operation of the liquid diffusing device, an outlet zone defined at least in part by the body through which to discharge the diffused liquid toward an external environment, and a tortuous passage extending between the inlet and the outlet zone to aid in further reducing an average particle size of the diffused liquid as the diffused liquid moves through the tortuous passage. Removable cartridges for use with a diffusion device are also provided which include such an insert.
Abstract:
A removable cartridge for use with a liquid diffusion device is provided. The removable cartridge includes a cartridge housing defining an internal housing cavity, partially filled with a liquid to be diffused, and a diffusion head positioned within the internal housing cavity with a venturi device for generating diffused liquid from the liquid contained in the internal housing cavity. The diffusion head defines at least a portion of a gas supply conduit that extends from a bottom end of the removable cartridge to the venturi device through the liquid to be diffused to enable the venturi device to be supplied with pressurized gas from an external source via the bottom end of the removable cartridge.
Abstract:
Station (10) for internally and externally storing, collecting and recirculating a fluid substance, said station (10) comprising a tank (11) and a recirculation circuit (14) of the fluid substance contained in said tank (10). The circuit (14) is provided with a first end associated with a lower supply opening (12) and a second end associated with an upper loading opening (13); the circuit (14) being provided with a pump (15) and a first valve (16) associable with an external tank (17) through a loading conduit (18), the valve (16) being configurable for selectively defining the conditions of recirculation of the fluid substance contained in said tank (11) from the lower opening (12) to the upper opening (13) isolating said external tank (17), and loading the fluid substance from said external tank (17) to said tank (11) isolating the lower supply opening (12) of said tank (11). The recirculation circuit (14) comprises a second valve (19) being configurable for selectively defining the conditions of advancement of the fluid substance coming from the first valve (16) along the recirculation circuit (14) towards the upper opening (13) and diverting the fluid substance coming from the first valve (16) of the recirculation circuit (14) towards the external tank (17) through a return duct (20).
Abstract:
An agitator (1) is for a liquid analysis system (3, 50). It has a chamber (5) for reception of a sample liquid. A passageway (6) from the bottom of the chamber (5) ends in an agitator chamber (7). A side wall of the agitator chamber (7) is formed by a diaphragm (8). The diaphragm (8) is connected to an electric motor (9) with an eccentric drive for reciprocating movement of the diaphragm (8). A gas inlet (10) in the opposite side of the body (2) is connected by a passageway (11) to the agitator chamber (7). The agitation chamber has a domed internal face opposed to the diaphragm, by which about 10% of the agitation chamber (7) volume is displaced by the inward movement of the diaphragm (8). Also, advantageously, there is a uniform application of displacement force within the agitation chamber (7) by virtue of the domed internal surface.
Abstract:
A self-contained breathing closure for flasks and other containers that require gas exchange. An illustrative embodiment of the closure is comprised of a splashguard, an adaptor for attaching the closure to the container, a bellows element and a gas-permeable barrier element. The splashguard is intended to keep liquid contents under vigorous agitation in the container without wetting the gas-permeable barrier. The adaptor couples the closure to the container in a secure fashion. The bellows element allows for repeated changes in the internal volume of the container-closure system. The gas-permeable barrier allows desired gases to enter and leave the container while excluding small particles and/or microorganisms. The technology may be used with existing glass flask technology, or coupled to a plastic flask that may be configured for either single-use, or multiple-use.