US 12,268,335 B2
Kitchen device
Margaret Antkowiak, Alexandria (AU); Richard Llewelyn Jones, Alexandria (AU); Lochana Subasekara Widanagamage Don, Alexandria (AU); and Sebastien Tiburzio, Alexandria (AU)
Assigned to BREVILLE PTY LIMITED, Alexandria (AU)
Appl. No. 17/442,348
Filed by Breville Pty Limited, Alexandria (AU)
PCT Filed Mar. 23, 2020, PCT No. PCT/AU2020/050277
§ 371(c)(1), (2) Date Sep. 23, 2021,
PCT Pub. No. WO2020/191437, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019900990 (AU), filed on Mar. 25, 2019; and application No. 2019902299 (AU), filed on Jun. 28, 2019.
Prior Publication US 2022/0175194 A1, Jun. 9, 2022
Int. Cl. A47J 43/07 (2006.01); H02J 50/10 (2016.01); H02J 50/90 (2016.01); A47J 43/046 (2006.01); A47J 43/08 (2006.01)
CPC A47J 43/0777 (2013.01) [A47J 43/0766 (2013.01); H02J 50/10 (2016.02); H02J 50/90 (2016.02); A47J 43/0465 (2013.01); A47J 43/085 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A kitchen device including:
a base having a mechanism that is operated using electrical power to cause processing of food;
a vessel removably mounted on the base and including a bottom wall, a side wall extending upwardly from the bottom wall to a rim so as to provide a space to receive the food to be processed, with the rim surrounding an opening to the space;
a lid removably coupled to the rim so as to at least partially close the opening; and
an interlock system operatively associated with the mechanism to permit the delivery of the electric power to the mechanism, the system including a first interlock circuit and a second interlock circuit, wherein delivery of the electric power to the mechanism is permitted by the completion of the first interlock circuit and activation of the second interlock circuit,
wherein the first interlock circuit includes a first coupling to complete the first interlock circuit, the first coupling including a first portion mounted to the lid and a second portion mounted to the vessel adjacent the rim so that the first portion is located adjacent the second portion when the lid is coupled to the rim thereby completing the first interlock circuit,
wherein the second interlock circuit includes a second coupling to activate the second interlock circuit, the second coupling including a first portion that is part of the second interlock circuit and mounted to the base, the first portion is a receiver including a photodiode being operatively associated with a second portion that is mounted to the vessel and part of the first interlock circuit, the second portion is a transmitter including a light emitting diode, wherein completion of the first interlock circuit causes operation of the transmitter thereby causing operation of the receiver to thus activate the second interlock circuit and permit delivery of the electric power to the mechanism,
wherein the first interlock circuit further includes a receiver coil and the base includes a transmitter coil, and
wherein the receiver coil is configured to receive electrical power from the transmitter coil to operate the light emitting diode when the first interlock circuit is completed.