# US 2021/0274976 A1 · Preparation vessel for connection with a locking assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0274976 A1 - Document ID: US20210274976A1 - Status: Published application - Kind: A1 - Application number: 17/193,420 - Filed: 2021-03-05 - Published: 2021-09-09 - Earliest claimed: 2020-03-06 - Assignees: Vorwerk & Co. Interholding GmbH - Applicants: Vorwerk & Co. Interholding GmbH - Inventors: Kevin SCHMITZ; Christian BAYARD; Sebastian JANSEN - Web page: https://patentgrep.com/patent/US20210274976A1 ## CPC - A47J 36/10: Lid-locking devices - A47J 43/0772: {activated by the proper positioning of the cover} - A47J 43/046: with tools driven from the bottom side - A47J 43/0727: {Mixing bowls} - A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES ## Abstract A preparation vessel for connection with a receiving area of a base unit of an electric motor-driven food processor has a pot, a pot foot that can be connected with the receiving area, and a cover that closes the pot opening of the pot. The preparation vessel has a locking assembly with a locking element for locking the pot with the cover. The pot foot has at least one activating element for activating the locking assembly. The activating element is arranged on the pot foot in such a way that it can be activated by a corresponding activating assembly of the receiving area of the food processor. ## Claims ### Claim 1 A preparation vessel for connection with a receiving area of a base unit of an electric motor-driven food processor, comprising: a pot with a pot opening, a pot foot that is configured to be connected with the receiving area, a cover that closes the pot opening of the pot, and a locking assembly with a locking element configured for locking the pot with the cover, wherein the pot foot has at least one activating element configured for activating the locking assembly, and wherein the activating element is arranged on the pot foot in such a way that the activating element can be activated by a corresponding activating assembly of the receiving area of the food processor. ### Claim 2 (depends on 1) The preparation vessel according to claim 1, wherein the locking assembly has a drive assembly that drives the locking element and is mechanically operatively connected with the activating element. ### Claim 3 (depends on 2) The preparation vessel according to claim 2, wherein the drive assembly has a drive element in the form of a rotating shaft, which proceeding from the pot foot up to the cover is guided through a wall of the pot and/or a handle of the pot. ### Claim 4 (depends on 1) The preparation vessel according to claim 1, wherein the locking element is a locking ring that is rotatably mounted on the pot or the cover and surrounds the pot opening when the pot opening is closed by the cover, wherein the locking element has a drive assembly that is set up to rotate the locking element around the pot opening. ### Claim 5 (depends on 4) The preparation vessel according to claim 4, wherein the locking element has at least one active element, which as the locking element rotates is designed to induce an axial displacement of the cover toward the pot and/or a tensioning of the cover acting radially to the outside. ### Claim 6 (depends on 5) The preparation vessel according to claim 5, wherein the active element is configured to engage into a corresponding opening of the cover or pot to form a bayonet lock, wherein the active element or a partial area of the cover or pot has a ramp that ascends in a locking rotational direction, and induces an axial displacement of the cover relative to the pot, and thus a locking of the pot with the cover. ### Claim 7 (depends on 5) The preparation vessel according to claim 5, further comprising an intermediate element movably mounted on the pot or the cover, wherein the active element of the locking element is configured to press the intermediate element in an axial and/or radial direction against a partial area of the cover or pot during a rotation of the locking element, and thereby induce a locking of the pot with the cover. ### Claim 8 (depends on 4) The preparation vessel according to claim 4, further comprising a guiderail arranged on the pot with an engaging element mounted in a spiral guideway of the guiderail, wherein the guideway runs around a spiral axis that faces radially outward in relation to an interior of the pot, and wherein a rotation of the locking element produces an axial and radial displacement of the engaging element along the spiral guideway toward a partial area of the cover, until a partial area of the engaging element facing out of the guiderail abuts against the cover, thereby bringing about a locking of the pot with the cover. ### Claim 9 (depends on 1) An electric motor-driven food processor comprising: a base unit having a receiving area, and the preparation vessel according to claim 1, wherein the base unit has an activating assembly that is configured to activate the locking assembly of the preparation vessel when the base unit and preparation vessel are connected with each other. ### Claim 10 (depends on 9) The food processor according to claim 9, further comprising a safety device configured for locking the preparation vessel on the base unit of the food processor, wherein the safety device has a safety element movably mounted on the preparation vessel and configured to be moved behind an undercut of the base unit, or a safety element movably mounted on the base unit and configured to be moved behind an undercut of the preparation vessel, wherein the activating assembly of the base unit is configured to also drive the safety element of the safety device simultaneously and additionally to activating the locking assembly.