# US 11,896,160 B2 · Grinder having blocking element > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,160 B2 - Document ID: US11896160B2 - Status: Granted - Kind: B2 - Application number: 17/606,397 - Filed: 2020-04-24 - Published: 2022-06-23 - Granted: 2024-02-13 - Earliest claimed: 2019-04-26 - Assignees: Joma Kunststofftechnik GmbH - Applicants: Joma Kunststofftechnik GmbH - Inventors: Rudolf Fries - Web page: https://patentgrep.com/patent/US11896160B2 ## CPC - A47J 42/02: having grinding cones - A47J 42/38: Parts or details - A47J 42/04: hand driven - A47J 42/10: Grinding cones - A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES ## Abstract A grinder for a spice mill, in particular a hand-operated spice mill, having an inlet side for entry of unground grinding stock and an outlet side for the exit of ground grinding stock, including a rotor, a stator interacting with the rotor and a housing at least partially surrounding the rotor and/or stator. The housing includes a stator housing part, which is substantially rotationally fixedly connected to the stator, and a rotor housing part which is rotatable relative to the stator housing part and is substantially rotationally fixedly connected to the rotor via a connecting element. The connecting element is at least partially received in a recess in the rotor, and the connecting elements and the rotor are frictionally connected. The housing has, on a side of the rotor facing the inlet side, a blocking element which blocks displacement of the rotor in the direction of the inlet side. ## Claims ### Claim 1 A grinder for a spice mill, with an inlet side for entry of unground grinding stock, and an outlet side for exit of ground grinding stock, comprising: a rotor, a stator, interacting with the rotor, and a housing, at least partially surrounding the rotor and/or the stator, wherein, the housing has a stator housing part, which is connected to the stator in an essentially rotationally fixed manner, and a rotor housing part, which can be rotated relative to the stator housing part, and is connected to the rotor in an essentially rotationally fixed manner by way of a connecting element, wherein the connecting element is at least partially accommodated in a recess of the rotor, wherein, the connecting element and the rotor are frictionally connected, and in the event of manufacturing variations the rotor can be detached from the connecting element and can be displaced in a direction of the inlet side, wherein the housing has, on a side of the rotor facing towards the inlet side, a blocking element, which blocks a displacement of the rotor in the direction of the inlet side. ### Claim 2 (depends on 1) The grinder according to claim 1, wherein: the blocking element is designed as a connecting web, which connects at least two points of the housing to one another. ### Claim 3 (depends on 1) The grinder according to claim 1, wherein: the blocking element, for supporting of an upper face of the rotor, has a supporting element, which has a through-passage hole. ### Claim 4 (depends on 1) The grinder according to claim 1, wherein: the stator housing part and the rotor housing part are rotatably connected to each other by way of a latching connection. ### Claim 5 (depends on 1) The grinder according to claim 1, wherein: the stator housing part has a connecting section for connection to an accommodating container. ### Claim 6 (depends on 1) The grinder according to claim 1, wherein: the recess of the rotor is designed as a channel, which channel extends from an upper face of the rotor to a lower face of the rotor. ### Claim 7 (depends on 1) The grinder according to claim 1, wherein: the blocking element is connected to the stator housing part. ### Claim 8 (depends on 1) The grinder according to claim 1, wherein: the connecting element has a polygonal cross-section. ### Claim 9 (depends on 8) The grinder according to claim 8, wherein: the recess in the rotor has a cross-section essentially corresponding to the polygonal cross-section of the connecting element. ### Claim 10 (depends on 1) The grinder according to claim 1, wherein: the stator is accommodated in a rotationally fixed manner in an accommodation element in the stator housing part. ### Claim 11 (depends on 1) The grinder according to claim 1, wherein: the connecting element has at least one projection which lies in the recess of the rotor on an inner face of the rotor, and establishes the frictional connection between the rotor and the connecting element. ### Claim 12 (depends on 11) The grinder according to claim 11, wherein: the at least one projection is elastically deformable, and is bent for the purpose of the frictional connection, such that a force is exerted on the inner face of the rotor. ### Claim 13 (depends on 1) The grinder according to claim 1, wherein: the rotor and the stator are made of a ceramic material and/or a metal. ### Claim 14 (depends on 1) The spice mill with an accommodating chamber for spices, wherein: the spice mill comprises the grinder according to claim 1, and the grinder is connected to the accommodating chamber.