An herb or tobacco grinder is provided in which the cutting surfaces line a series of elongated, curved grooves. The slots or grooves are laterally elongated such as to easily receive leaf material, as well as stem, seed or the like. The slots or grooves are slightly curved in opposite directions and intersect to form an impingement cutting region.

An herb or tobacco grinder is provided in which the cutting surfaces line a series of elongated, curved grooves. The slots or grooves are laterally elongated such as to easily receive leaf material, as well as stem, seed or the like. The slots or grooves are slightly curved in opposite directions and intersect to form an impingement cutting region.

A electronic grinder includes a main body removably attached to a grinding and dispensing chamber. The top of the main body is sealed by an upper cab and the bottom of the chamber is sealed by an openable lower cap. The main chamber includes a motor connected to a magnetically attached removable blade. The blade extends into the chamber when the grinder is assembled. When the lower cap is closed, the blade grinds material placed in the chamber. When the lower cap is opened, the blade functions as a fan to dispense ground material out of the chamber. The grinder also includes a display, an electronic scale, and an accessory cigarette lighter.

A electronic grinder includes a main body removably attached to a grinding and dispensing chamber. The top of the main body is sealed by an upper cab and the bottom of the chamber is sealed by an openable lower cap. The main chamber includes a motor connected to a magnetically attached removable blade. The blade extends into the chamber when the grinder is assembled. When the lower cap is closed, the blade grinds material placed in the chamber. When the lower cap is opened, the blade functions as a fan to dispense ground material out of the chamber. The grinder also includes a display, an electronic scale, and an accessory cigarette lighter.

A grinder includes a connecting part configured to be attached to a rotating shaft to which a handle of a hand mill configured to grind food by hand is mounted; and a motor configured to rotate the connecting part and abut on the connecting part.

A grinder includes a connecting part configured to be attached to a rotating shaft to which a handle of a hand mill configured to grind food by hand is mounted; and a motor configured to rotate the connecting part and abut on the connecting part.

An automatic grinder and a grinding method thereof. The grinder includes a control structure and at least one material container assembly. The control structure includes a driving assembly and a connecting structure connected thereto. The material container assembly includes a material container body (20), a grinding head (22) fixedly connected to the material container body (20), and a grinding sleeve (25) rotatably connected to the grinding head (22). A recess (201) is provided on the material container body (20), engaged with the connecting structure. The grinding head (22) is fitted into the grinding sleeve (25), defining therebetween a material compartment (40) for accommodating a material. The driving assembly drives the material container body (20) to rotate. The material container body (20) drives the grinding head (22) to rotate. The grinding head (22) moves relative to the grinding sleeve (25), such that the material therebetween is ground into powder.

An improved herb grinder system is described. Some implementations can include an herb grinder designed to keep ground material from drying out by providing moisture to an interior area of the grinder, where the moisture is delivered via packets or other suitable devices to keep the ground material in a moist environment. In some implementations, the grinder is modular to permit various aspects or configurations to be modified and adjusted for optimal performance of ground material storage. The herb grinder system can provide storage times that can vary from a few hours to days or longer by maintaining or increasing moisture levels to help preserve the quality of ground material.

A grinder for beans of plant-based products, for example roasted coffee beans, includes a grinding chamber defined by a cylindrical wall and a pair of opposed grinding wheels located in the grinding chamber. At least one of the pair of opposed grinding wheels rotates. The grinder further includes an electric motor for driving the rotating grinding wheel and a first cooling duct extending in the cylindrical wall between a first inlet and a first outlet. A tubular circuit connected to the first cooling duct includes a pump for circulating fluid, a heat dissipater, at least one valve member, and an electronic control unit for actuating the pump and for turning on the heat dissipater according to a temperature sensed by a temperature sensor.

A grinder for beans of plant-based products, for example roasted coffee beans, includes a grinding chamber defined by a cylindrical wall and a pair of opposed grinding wheels located in the grinding chamber. At least one of the pair of opposed grinding wheels rotates. The grinder further includes an electric motor for driving the rotating grinding wheel and a first cooling duct extending in the cylindrical wall between a first inlet and a first outlet. A tubular circuit connected to the first cooling duct includes a pump for circulating fluid, a heat dissipater, at least one valve member, and an electronic control unit for actuating the pump and for turning on the heat dissipater according to a temperature sensed by a temperature sensor.