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公开(公告)号：US12109564B2
公开(公告)日：2024-10-08
申请号：US16972283
申请日：2019-06-05
申请人： ELTEK S.p.A.
发明人： Marco Pizzi , Giovanni Melioli , Valentina Gallo , Massimo Zanin
CPC分类号： B01L3/502753 , C12Q1/18 , B01L2200/0668 , B01L2300/0645 , B01L2300/0806 , B01L2300/161
摘要： A microfluidic device for concentrating particles contained in a fluid sample (FS) comprises a substrate (11) configured for being set in rotation about a centre of rotation (5a), the substrate (11) having a surface (11b) defined in which is at least one microfluidic arrangement (12) that extends substantially according to a plane identified by the substrate (11). The at least one microfluidic arrangement (12) comprises at least one microchannel (13) having a first end (13a) and a second end (13b), wherein: —the at least one microchannel (13) comprises, in a region thereof intermediate between its first end (13a) and its second end (13a), at least one accumulation area (15) that is at a first distance (R1) in a radial direction (R) from the centre of rotation (5a) of the substrate (11); —the first end (13a) and the second end (13b) of the at least one microchannel (13) are at second distances (R2) in a radial direction (R) from the centre of rotation (5a) of the substrate (11); and —the first distance (R1) in a radial direction (R) is greater than the second distances (R2) in a radial direction (R), in such a way that particles (P) possibly contained in a volume of fluid of the fluid sample (FS) that penetrates into the at least one microchannel (13) tend to concentrate in the at least one accumulation area (15) as a result of the centrifugal force caused by a rotation of the substrate (11) about the centre of rotation (5a).
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公开(公告)号：US12037734B2
公开(公告)日：2024-07-16
申请号：US16652856
申请日：2018-09-27
申请人： ELTEK S.p.A.
发明人： Paolo Savini , Daniele Cerruti
CPC分类号： D06F39/081 , A47L15/4217 , F16K17/36 , A47L15/4212 , A47L2501/01 , D06F33/47 , G01M3/26
摘要： A hydraulic control device for liquid-conducting household appliances or systems comprises:—a hydraulic unit (11), having a hydraulic body (15) defining a duct (30) for the liquid, the duct (30) having an inlet (18i) and an outlet (31), the duct (30) being at least partially defined with an electrically insulating material, —an electrical valve arrangement (EV, SH) on the hydraulic body (15), which is electrically switchable between a closing position and an opening position, to prevent or enable, respectively, passage of the liquid between the inlet (180 and the outlet (31) of the duct (30), —a flow sensor on the hydraulic body (15). The flow sensor is a non-mechanical flow sensor comprising at least two electrical detection elements (42), prearranged for contact with the liquid that flows in the duct (30) and carried by at least one support (41), that preferably at least partly extends within, or faces the inside of, the duct (30) and/or has two opposite major faces that are substantially parallel to a direction of a flow of the liquid.
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公开(公告)号：US20240230747A1
公开(公告)日：2024-07-11
申请号：US18682090
申请日：2022-05-27
申请人： ELTEK S.p.A.
CPC分类号： G01R31/1281 , G01R27/2652 , G01R31/14 , G01R31/16
摘要： A sensor device for monitoring dielectric strength of a dielectric fluid has a sensor body which supports a sensitive part (SGi), designed for contact with the dielectric fluid. The sensitive part (SGi) comprises at least one pair of electrodes (E1, E2) having respective surface portions arranged at a predefined micrometric or sub-micrometric distance, to define therebetween at least one detection gap between which part of the dielectric fluid is suitable to seep in. The sensor device has a circuit arrangement comprising: —means for generating an electric field between the two electrodes of the at least one pair of electrodes (E1, E2) starting from a known supply voltage, and—means (V) for measuring a voltage representative of possible occurrence of an electric discharge between the two electrodes of the at least one pair of electrodes (E1, E2) through the dielectric fluid (5) present in the at least one detection gap (G), following generation of the electric field.
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公开(公告)号：US11982561B2
公开(公告)日：2024-05-14
申请号：US17282222
申请日：2019-10-03
申请人： ELTEK S.p.A.
发明人： Fulvio Cerutti , Stefano Allera , Massimo Zanin , Matteo Rondano , Giorgio Fagnola , Mauro Zorzetto , Marco Pizzi
IPC分类号： G01F23/263 , G01F23/24 , G01F25/20
CPC分类号： G01F23/268 , G01F23/24 , G01F23/266 , G01F25/20
摘要： A level sensor comprises an electrical-connection structure and a level-detection structure. The level-detection structure comprises a plurality of elongated electrodes, which include at least three measuring electrodes. The elongated electrodes extend at least partially in side-by-sidey positions in a length direction of the level-detection structure and each have a proximal end and a distal end relative to the electrical-connection structure. The level-detection structure is divided, in the length direction, into a succession of detection sections, each of which includes two effective portions of two respective measuring electrodes, the two effective portions extending to a prevalent extent substantially parallel and equidistant, at a first predetermined distance from each other, in the length direction. In the detection sections there also extends, in the length direction, a non-effective portion of one further elongated electrode other than the two measuring electrodes that define the two effective portions of the corresponding detection section, the at least one further elongated electrode being one measuring electrode or else a reference electrode. The elongated electrodes are shaped in such a way that, at one or more of the detection sections, the non-effective portion of the at least one further elongated electrode extends to a prevalent extent at respective second predetermined distances from the corresponding two effective portions, the second predetermined distances being greater than the first predetermined distance.
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公开(公告)号：US11549210B2
公开(公告)日：2023-01-10
申请号：US16753620
申请日：2018-09-27
申请人： ELTEK S.p.A.
发明人： Paolo Savini , Daniele Cerruti
IPC分类号： F16K31/02 , D06F39/08 , A47L15/42 , G01F1/58 , G01F1/69 , G01F15/00 , G01M3/26 , G05D7/06 , D06F33/47
摘要： A hydraulic control device for liquid-conducting appliances and systems is designed for connection between a source of liquid and an appliance or system using the liquid. The hydraulic control device (1) comprises: —a device body (2′, 3′) having a duct for the liquid (30a, 30b) that extends between an inlet connector (2a) and an outlet connector (3 a); —a flow meter (40, 50) associated to the device body (2\ 3′); and—a valve arrangement (31, 33-37) associated to the device body (2′, 3′), including a valve member (31), which is displaceable between an opening position and a closing position of the duct for the liquid (30a, 30b), and a control mechanism (33-37) for controlling the valve member (31). The control mechanism (33-37) is switchable on the basis of a detection made by the flow meter (40, 50) in order to displace the valve member (31) from the opening position to the closing position of the duct for the liquid (30a, 30b). The flow meter (40, 50) is a non-mechanical flow meter that includes at least two electrical detection elements (42) that are reachable by liquid that flows in the duct for the liquid (30a, 30b).
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公开(公告)号：US11497379B2
公开(公告)日：2022-11-15
申请号：US17189924
申请日：2021-03-02
申请人： ELTEK S.p.A.
发明人： Daniele Cerruti
IPC分类号： A47L15/44
摘要： A dishwasher washing agent dispenser includes (a) a dispenser body, configured to be set partially into an opening of an inner side of a dishwasher door and the dispenser body has a receptacle for containing a washing agent, (b) a dispenser door mounted in a guided way with respect to the dispenser body, for being slidable between positions of closing and opening of the receptacle, the open position allowing dispensing of the washing agent from the receptacle, (c) guides between the dispenser body and the dispenser door, for guiding displacement of the dispenser door between the positions of closing and opening in such a way that, when the dispenser door is open, a portion of the dispenser door projects from the dispenser body, in a substantially cantilever fashion, and (d) a supporting element extending in length downwards from the dispenser door and configured to counter bending of the portion of the dispenser door that projects from the dispenser body when the dispenser door is in the open position.
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公开(公告)号：US11446421B2
公开(公告)日：2022-09-20
申请号：US16716800
申请日：2019-12-17
申请人： ELTEK S.p.A.
发明人： Massimo Zanin , Marco Pizzi , Laura Mazzucco , Marco Bertoni
摘要： A medical device for separating a fluid, in particular for separating platelet-rich plasma from whole blood, includes three containers and at least one corresponding connection line having an intermediate bifurcation. Provided on the connection line are valve means for enabling or preventing a flow of fluid. At least one container includes a hollow container body and a plunger associated in a movable way to the container body. The device also includes a filtering member on the connection line.
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公开(公告)号：US20210215393A1
公开(公告)日：2021-07-15
申请号：US17056261
申请日：2019-05-17
申请人： ELTEK S.P.A.
发明人： Alberto BARBANO , Marco BIZZARRO , Luca COSTA , Luca VERCELLOTTI
摘要： An electrical heater device comprises an heating element, which includes two electrodes and a heating body made of a polymer-based material having a PTC effect, in contact with the electrodes. Each electrode comprises a meshed structure, which extends in a length direction and in a width direction, and is embedded at least partially in the heating body. Each electrode further comprises an electrical-distribution element which is fixed to the meshed structure and includes a distribution portion that extends in the length direction, or in the width direction, or in both the length and width directions of the meshed structure.
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公开(公告)号：US20210199574A1
公开(公告)日：2021-07-01
申请号：US17044632
申请日：2019-04-03
申请人： ELTEK S.p.A.
发明人： Fabio CAVALLI , Mauro ZORZETTO , Costanzo GADINI
IPC分类号： G01N21/43
摘要： An optical sensor device (1) for a fluid substance (LS) comprises a device body (2) having a detection portion (14), associated to which is a sensitive optical part that comprises at least one of an emitter (20) and a receiver (21) of an optical radiation (Re, Rr). The detection portion (14) is made of a material transparent to the optical radiation (Re, Rr) and has an inner surface (23a, 23b) and an outer surface (15), the outer surface (15) being designed to be in contact with the fluid substance (LS) and the inner surface (23a, 23b) being designed to be isolated from the fluid substance. The at least one of the emitter (20) and the receiver (21) of the sensitive optical part is optically coupled to the inner surface (23a, 23b) of the detection portion (14), in such a way that the optical radiation (Re, Rr) is at least in part propagated through the detection portion (14), in particular with an angle and/or an intensity that is variable as a function of a characteristic of the fluid substance. The optical sensor device (1) comprises a protection arrangement, configured for preventing possible deformation of the detection portion (14) caused by an increase in volume of the fluid substance (LS), in particular deformation of at least one of its inner surface (23a, 23b) and its outer surface (15). The protection arrangement comprises at least one compensation element (13) having an elastically deformable body, which is able to contract, for compensating thereby a possible increase in volume of the fluid substance (LS) or else for enabling a reversible displacement of the detection portion (14) following upon a possible increase in volume of the fluid substance (LS).
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公开(公告)号：US11002586B2
公开(公告)日：2021-05-11
申请号：US16065571
申请日：2016-12-23
申请人： ELTEK S.P.A.
发明人： Matteo Rondano , Mauro Zorzetto , Enrico Chiesa
摘要： A capacitive level-sensor device, for detecting the level of at least one medium contained in a container comprises: a detection part that includes an array of capacitive elements, the array of capacitive elements comprising at least one set of electrodes on a substrate, the electrodes being set at a distance from one another according to a level-detection axis, the detection part including at least one insulating layer for electrically insulating the electrodes with respect to the medium; and a control circuit having a plurality of first inputs, electrically connected to which are the electrodes. The control circuit is prearranged for carrying out a sequential sampling of the inputs of the plurality of first inputs and for comparing a value representing the capacitance associated to each electrode with at least one corresponding reference threshold.
The detection part further comprises at least one temperature sensor, connected to at least one respective second input of the control circuit.
The control circuit is moreover prearranged for carrying out a compensation of at least one of the following: the value representing electrical capacitance associated to each electrode; a value indicating the medium facing each electrode and the at least one reference threshold, according to information representing at least one temperature value acquired on the at least one second input.
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