# US 12,108,914 B2 · System with food processor and household mixing device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,108,914 B2 - Document ID: US12108914B2 - Status: Granted - Kind: B2 - Application number: 17/211,441 - Filed: 2021-03-24 - Published: 2021-09-30 - Granted: 2024-10-08 - Earliest claimed: 2020-03-26 - Assignees: Vorwerk & Co. Interholding GmbH - Applicants: Vorwerk & Co. Interholding GmbH - Inventors: Stephan Pohl - Web page: https://patentgrep.com/patent/US12108914B2 ## CPC - A47J 43/046: with tools driven from the bottom side - A47J 43/085: {for machines with tools driven from the lower side (A47J43/087, A47J43/09 take precedence)} - A47J 43/0465: {with magnetic drive} - A47J 43/0766: {activated by the proper positioning of the mixing bowl} - A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES ## Abstract The present disclosure relates to a system comprising a food processor and a mixing device having at least one vessel with a mixing tool. The vessel can be both part of the food processor and part of the mixing device. The maximum possible rotational speed at which the food processor can rotate the mixing tool may be at least five times greater than the maximum possible rotational speed at which the food processor can rotate the mixing tool. The present disclosure also relates to a stand part for the mixing device of the system. The stand part may be configured to rotate the mixing tool at or below a predetermined rotational speed as well as at or below a predetermined torque level. ## Claims ### Claim 1 A food preparation system, the system comprising a stand part of a food processor, a stand part of a mixing device, and at least one vessel with a mixing tool located therein, wherein the at least one vessel is configured to be mounted to either the food processor or the mixing device so as to provide both part of the food processor and part of the mixing device, and wherein the maximum possible rotational speed at which the stand part of the food processor is configured to rotate the mixing tool is at least five times greater than the maximum possible rotational speed at which the stand part of the mixing device is configured rotate the mixing tool. ### Claim 2 (depends on 1) The system of claim 1, wherein the maximum possible rotational speed the stand part of the mixing device is configured to rotate the mixing tool to 1000 revolutions per minute. ### Claim 3 (depends on 2) The system of claim 2, wherein the stand part of the food processor is configured rotate the mixing tool to at least 5000 revolutions per minute. ### Claim 4 (depends on 3) The system of claim 3, wherein the stand part of the food processor is configured to rotate the mixing tool at not more than 15000 revolutions per minute. ### Claim 5 (depends on 1) The system of claim 1, further comprising a lid configured to close the at least one vessel and a locking mechanism configured to retain the lid in place relative to the at least one vessel when the vessel is mounted on the stand part of the food processor. ### Claim 6 (depends on 5) The system of claim 5, wherein the system lacks any lock feature configured to retain the lid in place relative to the at least one vessel when the vessel is mounted on the stand part of the mixing device. ### Claim 7 (depends on 6) The system of claim 6, wherein at least one of the stand part of the food processor and the stand part of the mixing device is configured in such a way that the rotational speeds for the mixing tool can be adjusted only in a stepped manner. ### Claim 8 (depends on 7) The system of claim 7, wherein the stand part of the mixing device is configured to provide no more than three adjustable steps for the rotational speed for the mixing tool. ### Claim 9 (depends on 8) The system of claim 8, wherein the stand part of the food processor is configured to provide more than three adjustable steps for the rotational speed for the mixing tool. ### Claim 10 (depends on 9) The system of claim 9, wherein there are same step intervals for setting a rotational speed in the stand part of the food processor as in the stand part of the mixing device so that a user can select equivalent rotational speeds for at least some speeds available to the stand part of the food processor and the stand part of the mixing device. ### Claim 11 (depends on 1) The system of claim 1, wherein the mixing tool comprises a pressure safety device that provides means for decoupling the mixing tool from rotation with a drive included in one of the food processor and the mixing device in response to motion of the mixing tool exceeding predetermined thresholds. ### Claim 12 (depends on 1) The system of claim 1, wherein the stand part of the mixing device comprises a control for limiting the torque for an included drive. ### Claim 13 (depends on 12) The system of claim 12, wherein the stand part of the mixing device has a recess sized to receive at least a portion of the at least one vessel, and an electric drive for rotating the mixing tool present in the at least one vessel, wherein the stand part of the mixing device is configured such that the stand part can rotate the mixing tool present in the at least one vessel at not more than 300 revolutions per minute, and wherein the torque with which the mixing tool can be rotated by the stand part of the mixing device can be not more than 0.4 N*m. ### Claim 14 (depends on 13) The system of claim 13, wherein the stand part of the mixing device comprises electrical contacts for heating the vessel, which are configured to be connected to electrical contacts on the underside of the at least one vessel when the at least one vessel is inserted into the recess, and means for setting a rotational speed for the mixing tool and a temperature for heating the at least one vessel. ### Claim 15 (depends on 13) The system of claim 13, wherein the electric drive comprises a stepper motor. ### Claim 16 (depends on 1) The system of claim 1, wherein at least one of the stand part of the food processor and the stand part of the mixing device is configured in such a way that the rotational speeds for the mixing tool can be adjusted only in a stepped manner. ### Claim 17 (depends on 16) The system of claim 16, wherein the stand part of the mixing device is configured to provide no more than three adjustable steps for the rotational speed for the mixing tool. ### Claim 18 (depends on 17) The system of claim 17, wherein the stand part of the food processor is configured to provide more than three adjustable steps for the rotational speed for the mixing tool, and wherein there are same step intervals for setting a rotational speed in the stand part of the food processor as in the stand part of the mixing device so that a user can select equivalent rotational speeds for at least some speeds available to the stand part of the food processor and the stand part of the mixing device.