A grinding assembly for grinding a partially dried or a dried substance is described. The assembly include a first component, a second component, a chamber component, a disc component, a first magnetic component, and a second magnetic component. The first magnetic component maintains a magnetic connection with the second magnetic component to affix the first component to the chamber component. Upon user rotation of the first component, a first set of protrusions of the first component are moved such that the first set of protrusions engage a second set of protrusions of the chamber component to grind the substance. In response to such rotation, the substance is ground into a much thicker consistency that resembles a hand-broken consistency. The ground substance falls through a plurality of openings of the chamber component into the second component for storage.

A mill is formed by a plastic rotating part, a high-hardness rotating part, a high-hardness stationary gear, and a plastic stationary part, such that the high-hardness rotating part and the high-hardness stationary gear are provided with a plurality of teeth complementary to one another for the grinding function. The high-hardness gear and the plastic stationary part advantageously have locking means enabling an automatic assembly of the mill, since the mentioned elements are able to easily rest relative to one another in the suitable position and fit together effortlessly.

A grinding device for grindable products includes movable and fixed grinding assemblies. The movable grinding assembly includes a rotationally integral casing and a grinder including a grinding cone with a grinding surface. The fixed grinding assembly includes a counter-grinder and a coupling member. The casing includes a cylindrical jacket and is closed at one end, including openings for dispensing a ground product. The counter-grinder has a hollow cylindrical body with an inner grinding surface. The grinder is inserted into the hollow cylindrical body of the counter-grinder to allow the respective grinding surfaces to cooperate. The coupling member includes an open ended cylindrical body connecting with the container and an adjustment portion cooperating with the casing for adjusting the movable grinding assembly with respect to the fixed grinding assembly. The grinder and the counter-grinder are substantially rigid, and the casing and the coupling member are substantially flexible.

A grinding device for grindable products includes movable and fixed grinding assemblies. The movable grinding assembly includes a rotationally integral casing and a grinder including a grinding cone with a grinding surface. The fixed grinding assembly includes a counter-grinder and a coupling member. The casing includes a cylindrical jacket and is closed at one end, including openings for dispensing a ground product. The counter-grinder has a hollow cylindrical body with an inner grinding surface. The grinder is inserted into the hollow cylindrical body of the counter-grinder to allow the respective grinding surfaces to cooperate. The coupling member includes an open ended cylindrical body connecting with the container and an adjustment portion cooperating with the casing for adjusting the movable grinding assembly with respect to the fixed grinding assembly. The grinder and the counter-grinder are substantially rigid, and the casing and the coupling member are substantially flexible.

A grinder assembly which minimizes deviations in the path of ground material as well as other interfering structure is provided. A receiving chamber is disposed above a grinding mechanism and provides for direct transfer of material to be ground from the outlet aperture of the receiving chamber to the grinding mechanism. The grinding mechanism is driven from above and, therefore, no other structure necessary which may interfere with the ejection of grounds from the grinder assembly. A vacuum-stabilized base plate may also be provided in order to securely and removably mount the grinder assembly to a surface.

A grinder assembly which minimizes deviations in the path of ground material as well as other interfering structure is provided. A receiving chamber is disposed above a grinding mechanism and provides for direct transfer of material to be ground from the outlet aperture of the receiving chamber to the grinding mechanism. The grinding mechanism is driven from above and, therefore, no other structure necessary which may interfere with the ejection of grounds from the grinder assembly. A vacuum-stabilized base plate may also be provided in order to securely and removably mount the grinder assembly to a surface.

A coffee grinder-doser includes a grinder-doser body enclosing a grinding chamber which houses first and second mills configured and mutually positioned to grind coffee beans into powder. An external ring-nut which is gripped and rotated by an operator integrally connects to the first mill. A nut screw with a longitudinal axis, inside the grinding chamber, is engaged with an external thread of the ring-nut to translate the first mill along the longitudinal axis. The ring-nut includes a ring-nut body and indices defining the angular position thereof. The grinder-doser body includes a fixed reference for the indices. The ring-nut is associated with a graduated ring having the indices, and a cover at least partially removable to lock the graduated ring between the cover and the ring-nut. The cover is fixed to the ring-nut body by a partially removable couple for adjusting and locking the angular position of the graduated ring.

A coffee grinder-doser includes a grinder-doser body enclosing a grinding chamber which houses first and second mills configured and mutually positioned to grind coffee beans into powder. An external ring-nut which is gripped and rotated by an operator integrally connects to the first mill. A nut screw with a longitudinal axis, inside the grinding chamber, is engaged with an external thread of the ring-nut to translate the first mill along the longitudinal axis. The ring-nut includes a ring-nut body and indices defining the angular position thereof. The grinder-doser body includes a fixed reference for the indices. The ring-nut is associated with a graduated ring having the indices, and a cover at least partially removable to lock the graduated ring between the cover and the ring-nut. The cover is fixed to the ring-nut body by a partially removable couple for adjusting and locking the angular position of the graduated ring.

A medicine grinder has a grinding assembly having a ring burr and a frustoconical burr being mutually rotatable relative to each other. The ring burr is tubular. The frustoconical burr is disposed within the ring burr and has multiple rough grinding edges, multiple recesses, and a non-grinding portion. The multiple rough grinding edges surround a center of the frustoconical burr. Each one of the grinding edges spirally extends about the center of the frustoconical burr. The multiple recesses are divided by the multiple rough grinding edges. One of the multiple recesses has a capacity being larger than a capacity of each one of the other recesses to define a non-grinding portion. Therefore, multiple receiving spaces are formed between the frustoconical burr and the ring burr.

A grinder has first and second body parts rotatable to each other. The first and second body parts engage the outer and inner burrs, respectively. A supporting flange in the second body part forms a seat to receive the outer burr. The outer burr is pressed toward the supporting flange to localize the outer burr against undesirable forces generated during grinding. A ring-shaped plate is sandwiched between the supporting flange and the outer burr. The outer burr presses on a bearing surface of the plate. The bearing surface is more resistant to abrasion than the supporting flange, advantageously reducing wear debris generation due to abrasion by the outer burr. Furthermore, a shaft engaging the inner burr is shaped as a triangular column for more effectively transmitting a received torque to the inner burr, allowing a plastic shaft to be used so as to reduce the manufacturing cost.