Device (10) for adjusting a machine (100) for grinding seeds, including a support member (11), a movement member (12) mobile with respect to the support member (11), a displacement member (13), configured to support a grinding element (106) and cooperating with the movement member (12) to translate along an axis (X), and stabilization means (14) configured to contrast, through friction, the movement of the movement member (12).

Device (10) for adjusting a machine (100) for grinding seeds, including a support member (11), a movement member (12) mobile with respect to the support member (11), a displacement member (13), configured to support a grinding element (106) and cooperating with the movement member (12) to translate along an axis (X), and stabilization means (14) configured to contrast, through friction, the movement of the movement member (12).

A grinder (30) has a toolessly attached ingredient hopper assembly (50) overlying a toolessly attached fixed grinding burr (134) defining the top of a grind chamber (158) within which is received a mating rotary grinding burr (150) that is slidably mounted to a rotary drive motor (154) for adjustment relative to the fixed grinding burr (134). Adjustment is achieved automatically by control of a stepper motor (168) that pushes on the end of an elongate control shaft (393) passing through a hollow rotary drive axle (392) and carrying the rotary grinding burr (150) at an opposite end. In a similar embodiment (FIG. 23), the non-rotary burr (314) is adjusted by movement of a control shaft (393) contained within a hollow motor axle (392). In other embodiments (FIGS. 17-22), a movable axle (304) of a movable rotor motor (300) and attached to the rotary burr (312) is moved to make the adjustments.

A grinder (30) has a toolessly attached ingredient hopper assembly (50) overlying a toolessly attached fixed grinding burr (134) defining the top of a grind chamber (158) within which is received a mating rotary grinding burr (150) that is slidably mounted to a rotary drive motor (154) for adjustment relative to the fixed grinding burr (134). Adjustment is achieved automatically by control of a stepper motor (168) that pushes on the end of an elongate control shaft (393) passing through a hollow rotary drive axle (392) and carrying the rotary grinding burr (150) at an opposite end. In a similar embodiment (FIG. 23), the non-rotary burr (314) is adjusted by movement of a control shaft (393) contained within a hollow motor axle (392). In other embodiments (FIGS. 17-22), a movable axle (304) of a movable rotor motor (300) and attached to the rotary burr (312) is moved to make the adjustments.

Disclosed is a coffee grinder having improved accuracy of burr alignment for grinding uniformity. The coffee grinder having improved accuracy of burr alignment for grinding uniformity of the present disclosure comprises: a lower flat burr carrier having a rotary base part rotatably coupled to a grinder body and a lower flat burr part coupled to the rotary base part so as to rotate together with the rotary base part and having a first grinding blade; and an upper flat burr carrier that is coupled to a fixed coupling part provided on the grinder body and grinds introduced coffee beans together with the first grinding blade, wherein the lower flat burr part is coupled to the side of the rotary base part.

Disclosed is a coffee grinder having improved accuracy of burr alignment for grinding uniformity. The coffee grinder having improved accuracy of burr alignment for grinding uniformity of the present disclosure comprises: a lower flat burr carrier having a rotary base part rotatably coupled to a grinder body and a lower flat burr part coupled to the rotary base part so as to rotate together with the rotary base part and having a first grinding blade; and an upper flat burr carrier that is coupled to a fixed coupling part provided on the grinder body and grinds introduced coffee beans together with the first grinding blade, wherein the lower flat burr part is coupled to the side of the rotary base part.

Various illustrative systems, devices, and methods for espresso machines are provided. In general, an espresso machine is configured to brew and dispense espresso. In an exemplary implementation, the espresso machine includes a grinder configured to grind coffee beans. The grinder is configured to be adjustable to allow for adjustment of coffee bean grind size, which may help that ensure that a particular beverage brewed and dispensed by the espresso machine is prepared using an optimal grind size. The espresso machine is configured to prevent jamming of the grinder automatically in response to grind size adjustment.

Various illustrative systems, devices, and methods for espresso machines are provided. In general, an espresso machine is configured to brew and dispense espresso. In an exemplary implementation, the espresso machine includes a grinder configured to grind coffee beans. The grinder is configured to be adjustable to allow for adjustment of coffee bean grind size, which may help that ensure that a particular beverage brewed and dispensed by the espresso machine is prepared using an optimal grind size. The espresso machine is configured to prevent jamming of the grinder automatically in response to grind size adjustment.

Various illustrative systems, devices, and methods for espresso machines are provided. In general, an espresso machine is configured to brew and dispense espresso. In an exemplary implementation, the espresso machine includes a grinder configured to grind coffee beans. The grinder is configured to be adjustable to allow for adjustment of coffee bean grind size, which may help that ensure that a particular beverage brewed and dispensed by the espresso machine is prepared using an optimal grind size. The espresso machine is configured to prevent jamming of the grinder automatically in response to grind size adjustment.

Various illustrative systems, devices, and methods for espresso machines are provided. In general, an espresso machine is configured to brew and dispense espresso. In an exemplary implementation, the espresso machine includes a grinder configured to grind coffee beans. The grinder is configured to be adjustable to allow for adjustment of coffee bean grind size, which may help that ensure that a particular beverage brewed and dispensed by the espresso machine is prepared using an optimal grind size. The espresso machine is configured to prevent jamming of the grinder automatically in response to grind size adjustment.