公开(公告)号：US20240280396A1

公开(公告)日：2024-08-22

申请号：US18571458

申请日：2022-06-24

Applicant: Breville Pty Limited

Inventor： Duncan Bruce HELLMERS ,  Johnson THIE ,  Stephen John MCCLEAN

IPC: G01F23/263 ,  A47J31/44

CPC classification number: G01F23/266 ,  G01F23/268 ,  A47J31/4428 ,  A47J31/4457

Abstract: There is disclosed herein a level detection system includes a housing (120) having a plurality of wall portions defining a receiving space for a container (200). The system further includes a capacitor having a first plate (142a) and a second plate (142b), the wall portions including a first wall portion having the first plate (142a) and a second wall portion having the second plate (142b). When the container is in the receiving space, a capacitance of the capacitor depends on a level of substance in the container (200). The system also includes a processor configured to determine the level of the substance in the container (200) based on the capacitance of the capacitor.

公开(公告)号：US20220151425A1

公开(公告)日：2022-05-19

申请号：US17435858

申请日：2020-03-09

Applicant: BREVILLE PTY LIMITED

Inventor： Duncan Bruce HELLMERS ,  Stephen John MCCLEAN ,  Johnson THIE ,  Richard HOARE

IPC: A47J27/21 ,  H05B6/10 ,  H05B6/06 ,  H05B6/12

Abstract: An appliance (10) to heat a liquid, the appliance (10) including: a vessel (12) to receive the liquid to be heated, the vessel (12) having a generally central upright longitudinal axis (24), a bottom wall (26), and a side wall (28) extending upwardly from the bottom wall (26), with the bottom wall (26) and side wall (28) at least partly enclosing a chamber (40) within which the liquid is heated, with the chamber (40) having an upper region (42) axially spaced from the bottom wall (26), and a lower region (44) located between the bottom wall (26) and the upper region (42); a heating element (50) located within the chamber (40) for relative movement therewithin, with the element (50) at least partly formed of ferromagnetic material; a heater base (14) to be positioned relative to the bottom wall (26) of the vessel (12), the heater base (14) including at least a portion of an induction coil (18); connections to deliver an alternating current to the induction coil (18) so as to deliver a magnetic field to the lower region (44); and wherein the element (50) is movable relative to the coil (18) between an operative position at which the element (50) is located within the lower region (44) so as to be energised by the magnetic field to cause heating of the element (50) so that heat generated by the element (50) can be delivered to the liquid via conduction, and an inoperative position at which the element (50) is located in the upper region (42) so as to no longer place an operative load on the induction coil (18).

公开(公告)号：US20210267411A1

公开(公告)日：2021-09-02

申请号：US17256220

申请日：2019-06-27

Applicant: BREVILLE PTY LIMITED

Inventor： Duncan Bruce HELLMERS ,  Stephen John MCCLEAN ,  Pierce BARNARD ,  Caroline VALENTINA ,  Andrew Robert MORGAN ,  Andrew Domenic GREGORACE ,  Robert GRASSIA

IPC: A47J31/60 ,  A47J31/06 ,  B08B5/04

Abstract: A coffee puck removal device (10) to remove a coffee puck (24) from a portafilter (20) is disclosed herein. The coffee puck removal device (10) has an open compartment (22) containing the coffee puck (24), the coffee puck (24) having an exposed major outer face (26) and a major inner face (28) when the coffee puck (24) is located in the open compartment (22). The device (10) includes: a body (12) having a rim (14) surrounding an aperture (16), with the rim (14) being configured to engage the portafilter (20), with the open compartment (22) facing the body (12) to inhibit air passing between the portafilter (20) and the rim (14); and a vacuum source (30) to remove air from the aperture (16) so that air pressure applied to the major inner face (28) is greater than air pressure applied to the exposed major outer face (26) so that the coffee puck (24) is removed from the portafilter (20).