A grinding device includes: first and second grinding elements, the first grinding element being rotatable relative to the second grinding element around a rotary axis for grinding coffee beans between the grinding elements into a powder; a carrier wheel rotatable around the rotary axis for conveying powder on the carrier wheel to an outflow channel to output the powder; a housing surrounding the grinding elements and the carrier wheel and including the outflow channel, the second grinding element being stationary relative to the housing, a rolling bearing with inner and outer rings and rolling elements therebetween, the outer ring being stationary on the housing and the first grinding element, the carrier wheel and the inner ring being rotatable around the rotary axis together. An annular seal ring seals an intermediate region above the outer ring around the rotary axis between the carrier wheel and the outer ring.

A bean grinding apparatus including a body; grinding burrs mounted in the body, the burrs including a non-driven burr and a rotationally driven burr, the rotationally driven burr having a rotational axis about which it rotates; a drive motor operatively coupled to the rotationally driven burr; a grounds flow path defined within the body; and an exit spout, the exit spout having an inlet in communication with the grounds flow path and an outlet, wherein the exit spout defines a longitudinal axis and the longitudinal axis of the exit spout is angled with respect to the rotational axis of the driven burr.

An apparatus for grinding coffee is described. The apparatus includes a mechanical user input device, a grinding unit for grinding coffee, an electrical switch which connects the grinding unit to a source of electrical power and a mechanical coupling for the mechanical coupling of the user input device to the grinding unit. The user input device provides electrical power to the grinding unit when it is displaced from an initial position and ceases the provision of electrical power to the grinding unit when it is in the initial position. The mechanical coupling returns the user input device to the initial position when the grinding unit is operational.

An apparatus for grinding coffee is described. The apparatus includes a mechanical user input device, a grinding unit for grinding coffee, an electrical switch which connects the grinding unit to a source of electrical power and a mechanical coupling for the mechanical coupling of the user input device to the grinding unit. The user input device provides electrical power to the grinding unit when it is displaced from an initial position and ceases the provision of electrical power to the grinding unit when it is in the initial position. The mechanical coupling returns the user input device to the initial position when the grinding unit is operational.

A device and related method for reducing coffee beans into powder includes a primary tank or hopper for containing the coffee beans, a grinding chamber, one or more unloading ducts for unloading coffee powder from the grinding chamber, a ground coffee collecting zone, and a system for the manual or automated removal of coffee powder residues and of accumulations thickened inside the grinding chamber, on the surfaces of the members involved in the pulverization, and on channels of the coffee into the unloading ducts using gas introduced into the grinding chamber.

A device and related method for reducing coffee beans into powder includes a primary tank or hopper for containing the coffee beans, a grinding chamber, one or more unloading ducts for unloading coffee powder from the grinding chamber, a ground coffee collecting zone, and a system for the manual or automated removal of coffee powder residues and of accumulations thickened inside the grinding chamber, on the surfaces of the members involved in the pulverization, and on channels of the coffee into the unloading ducts using gas introduced into the grinding chamber.

A grinder comprises: a receiving container, formed with an accommodation space and an installation space, and the bottom end thereof being extended with a connection ring have a feeding port, and a hollow grinding seat and a fasten ring are respectively and detachably disposed in the feeding port and the connection ring; an electric driving device, detachably disposed in the installation space; and a base, detachably disposed at the bottom end of the receiving container and including a hollow grinding chamber having the interior disposed with a support member with a pivotal shaft, a passive rod is sleeved and linked with a conical grinding disk, the top end and the bottom end of the passive rod are respectively sleeved with the output shaft and the pivotal shaft, thereby allowing the grinding disk to protrude into the grinding seat and forming a gap between the above two.

A grinder comprises: a receiving container, formed with an accommodation space and an installation space, and the bottom end thereof being extended with a connection ring have a feeding port, and a hollow grinding seat and a fasten ring are respectively and detachably disposed in the feeding port and the connection ring; an electric driving device, detachably disposed in the installation space; and a base, detachably disposed at the bottom end of the receiving container and including a hollow grinding chamber having the interior disposed with a support member with a pivotal shaft, a passive rod is sleeved and linked with a conical grinding disk, the top end and the bottom end of the passive rod are respectively sleeved with the output shaft and the pivotal shaft, thereby allowing the grinding disk to protrude into the grinding seat and forming a gap between the above two.

A bean grinder having a bean grinding chamber part, a dynamic grinding wheel, a static grinding wheel, and a residue removing plate. The bean grinding chamber part comprises a bean grinding chamber and a powder discharge channel. An inner wall of the bean grinding chamber is provided with a planar first inner wall disposed close to a powder discharge port and located at a rear side of the powder discharge port in a rotation direction of the dynamic grinding wheel. The first inner wall is tangent to a circle of the inner wall of the bean grinding chamber. An inner wall of the powder discharge channel comprises a second inner wall located at the side of the powder discharge port provided with the first inner wall, and the second inner wall is inclined outwards at a given angle with respect to the first inner wall.