摘要:
L'invention concerne un dispositif de dosage destiné à équiper un récipient comprenant un réservoir (2) déformable contenant un produit, ledit dispositif comprenant un insert (1), ledit insert (1) comportant une chambre de dosage (11) déformable par pression du produit venant du réservoir (2), ladite chambre de dosage (11) comprenant un clapet haut (12) d'admission du produit depuis le réservoir (2) ; un clapet bas (13) de distribution du produit; un corps (14) déformable reliant le clapet haut (12) et le clapet bas (13) ; la chambre de dosage (11) étant configurée pour que, sous la pression du produit venant du réservoir (2), le clapet haut (12) se ferme par déformation d'une première partie de la chambre, le clapet bas (13) restant fermé, puis, le clapet bas (13) s'ouvre sous l'effet de la déformation du corps (14).
摘要:
The present invention relates to quality control of pulmonary function test (PFT) devices. In particular, but not by way of limitation, the present invention relates to systems and methods for characterizing or verifying the measurement accuracy of pulmonary function testing devices used for measuring dynamic lung volumes (tidal volume (TV), inspiratory reserve volume (IRV), expiratory reserve volume (ERV), divisions thereof, and any other suitable dynamic lung volume) using spirometry, static and/or absolute lung volumes (total lung capacity (TLC), residual volume (RV), divisions thereof, and any other suitable absolute lung volume) using washout, dilution, and/or plethysmographic methods, and/or gas exchange, such as single-breath determination of carbon monoxide uptake in the lung (D LCO ).
摘要:
The device comprises at least one unit having a metering chamber (38) in which a piston (26) follows a reciprocating motion between a filling position and a discharge position. The metering chamber is at least partially defined in a cylinder (24) in which the piston moves, which cylinder is arranged in a vessel (10) that itself follows a reciprocating motion between an open position in which a feed port (36) of the cylinder is opened and a closed position in which the feed port is sealed. The piston is connected to a controlled reciprocating motion mechanism.
摘要:
A piston pump arrangement that disables operation of the pump in the absence of an inlet liquid and also to a piston pump arrangement useful to discharge liquids from at least two sources and to disable discharge of all of the liquids when supply of liquid from at least one source is empty.
摘要:
The present invention relates to an applicator (10) for ejecting doses of a flowable component, comprising - a housing (12), - an application tip (14) connected to the housing (12), - an actuation mechanism (26, 30), and - an insert (18) which is detachable from the housing (12), the insert (18) being adapted to be inserted into the housing (12), the insert (18) having a storage volume (36) for the flowable component, wherein the housing (12) comprises a receiving portion (19) adapted to the insert (18). The applicator is characterized in that the insert (18) comprises a drive portion (32) which is adapted to cooperate with the actuation mechanism (26, 30) so that the operation of the actuation mechanism (26, 30) results in a displacement of the insert (18) relative to the housing (12) and on a displacement axis (D).
摘要:
A material dispensing assembly (100) and method of operation is disclosed for converting a portable cartridge dispensing tool to a bag-type dispensing tool. The assembly comprises a single piece piston (110) for advancing material though a material housing (104), the single piece piston (110) includes a substantially square-shaped receptacle (140). The assembly further comprises a square shaped drive rack (112) for attaching to the piston (110) at the substantially square-shaped receptacle (140) at a connection end (128). The drive rack (112) further comprises a plurality of teeth (142) located thereon. The assembly (100) further has a support (127) with a substantially square profile for receiving and supporting the drive rack (112) during operation such that the construct of the drive rack and piston (110) are prevented from rotating during operation.
摘要:
The invention relates to a method for the portioned packaging of liquid or pasty products by means of a packaging machine, in which the product is fed to a metering chamber via an inlet, then metered to a product portion in the metering chamber by means of a metering element, the product portion being subsequently transferred into a package via a metering outlet. In order to avoid damage to the products which are susceptible to from damages, which are sensitive to crystallization in the rest state, the invention proposes that the metering chamber is operated in continuous flow in at least one operating state of the packaging machine among the downtimes of the packaging machine, the start-up of the packaging machine and the operation of the packaging machine, in which the product is discharged - either entirely or partially - from the metering chamber and is recirculated via an outlet provided in addition to the metering outlet, thereby passing the metering element. The invention further relates to a packaging machine suitable for carrying out such a method.