公开(公告)号：US11982584B2

公开(公告)日：2024-05-14

申请号：US17295909

申请日：2019-11-22

Applicant: ELTEK S.p.A.

Inventor： Costanzo Gadini ,  Marco Pizzi ,  Massimo Zanin ,  Stefano Allera

IPC: G01L3/10 ,  F16C19/52 ,  F16C43/00 ,  G01L1/18 ,  G01L5/00 ,  G01M13/045

CPC classification number: G01L3/101 ,  F16C19/527 ,  F16C43/00 ,  G01L1/183 ,  G01L3/108 ,  G01L5/0019 ,  G01M13/045 ,  F16C2202/36 ,  F16C2233/00

Abstract: A bearing detection device comprises a housing body, to be fixed to a stationary ring of a bearing, and a detection arrangement on the housing body, comprising a piezoelectric transducer. The detection arrangement also comprises: a floating body, mounted on the housing body and suitable for mechanically transmitting vibrations of the bearing, and a sensor unit, which is mounted in a stationary position on the housing body and has a detection surface configured for receiving thereon a corresponding surface of the floating body. The piezoelectric transducer defines at least part of the detection surface and is configured for generating an electrical potential difference that is substantially proportional to the magnitude of a stress exerted by the floating body on the piezoelectric transducer.

公开(公告)号：US11761483B2

公开(公告)日：2023-09-19

申请号：US17296132

申请日：2019-11-22

Applicant: ELTEK S.P.A.

Inventor： Marco Pizzi ,  Massimo Zanin ,  Stefano Allera

IPC: F16C19/52 ,  F16C35/04 ,  G01L5/00

CPC classification number: F16C19/522 ,  F16C35/047 ,  G01L5/0019 ,  F16C2202/36 ,  F16C2233/00

Abstract: A sensorized supporting device for bearings (1) comprises: • a bearing housing (2), configured for being secured to a mounting structure and defining at least one seat (2c) for a bearing (3); and • a sensorized supporting base (4), having a supporting body (4′) prearranged for being at least partially positioned between the mounting structure (S) and the bearing housing (2). The supporting body (4′) has a detection surface (4c) which extends in a longitudinal direction (L) and a transverse direction (W) and is configured for resting, directly or via interposition of at least one further element, on a corresponding surface of one of the bearing housing (2) and the mounting structure, the supporting base (4) being provided with a mechanical-stress sensor. The mechanical-stress sensor comprises at least one piezoelectric transducer (101, 102, 20) defining at least part of the detection surface (4c), the at least one piezoelectric transducer (10; 20; 101, 102) being configured for generating an electrical potential difference that is substantially proportional to the magnitude of a mechanical stress (SS) applied to the bearing housing (2).

公开(公告)号：US12285146B2

公开(公告)日：2025-04-29

申请号：US18007964

申请日：2021-06-04

Applicant: ELTEK S.P.A.

Inventor： Costanzo Gadini ,  Alberto Sciutto ,  Daniele Cerruti ,  Paolo Savini ,  Marco Pizzi ,  Paolo Begnamino ,  Stefano Allera ,  Massimo Zanin

IPC: A47L15/44 ,  F04B43/12

Abstract: A dispenser of washing agents for washing machines has a first tank, to contain a first washing agent, and a first dispensing arrangement, to dispense first dosed amounts of the first washing agent. The first dispensing arrangement has a peristaltic pump, which is configured to be driven in a first direction of rotation to cause delivery of the first dosed amounts of the first washing agent. The dispenser has a second tank, to contain a second washing agent, and a second dispensing arrangement, to dispense second dosed amounts of the second washing agent. The peristaltic pump has a command arrangement of the second dispensing arrangement, and is configured to be driven in a second direction of rotation, to drive the command arrangement so as to cause dispensing of the second dosed amounts of the second washing agent.

公开(公告)号：US11982561B2

公开(公告)日：2024-05-14

申请号：US17282222

申请日：2019-10-03

Applicant: ELTEK S.p.A.

Inventor： Fulvio Cerutti ,  Stefano Allera ,  Massimo Zanin ,  Matteo Rondano ,  Giorgio Fagnola ,  Mauro Zorzetto ,  Marco Pizzi

IPC: G01F23/263 ,  G01F23/24 ,  G01F25/20

CPC classification number: G01F23/268 ,  G01F23/24 ,  G01F23/266 ,  G01F25/20

Abstract: 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.