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 grinder includes a hopper having a top and a bottom and a shaft disposed within the hopper and configured to rotate about a shaft longitudinal axis with respect to the hopper. The shaft includes both a first end nearer to a top of the hopper as compared to a bottom of the hopper and a second end nearer to the bottom of the hopper as compared to the top of the hopper. A blade extends a radial distance outward from the shaft a smaller radial distance at a location on the shaft nearer to the first end of the shaft as compared to a second location on the shaft nearer to the second end.

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.

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.

A coffee bean grinder is provided, comprising a housing assembly, a shaft component, and a securing member. The shaft component is assembled in the housing assembly. When a coffee bean grinding complex is formed by an inner grinding member of the shaft component and an outer grinding member of the housing assembly, the shaft component and the housing assembly can be easily assembled and secured through the structural configuration of the securing member, and also through which, the shaft component and the housing assembly can also be disassembled for cleaning and maintenance after grinding operation.

A coffee bean grinder is provided, comprising a housing assembly, a shaft component, and a securing member. The shaft component is assembled in the housing assembly. When a coffee bean grinding complex is formed by an inner grinding member of the shaft component and an outer grinding member of the housing assembly, the shaft component and the housing assembly can be easily assembled and secured through the structural configuration of the securing member, and also through which, the shaft component and the housing assembly can also be disassembled for cleaning and maintenance after grinding operation.

A novel device for preparing fresh herbs and corresponding method are disclosed. The device includes a cap, a body for receiving the cap, and a hinge coupling the cap to the body. The cap, body, and hinge are each preferably comprised of plastic and manufactured such that the cap, body, and hinge are of one-piece construction. The cap includes an interior having shredding means. The body includes a chamber having shredding means. Fresh herbs may be placed within the chamber to be shredded after the cap is separated from the body. The hinge is preferably configured to be broken to permit the cap to be separated from the body. The device may also include a latch mechanism for hinging the cap back onto the body and for keeping the cap held onto the body once the device is no longer in use.

A novel device for preparing fresh herbs and corresponding method are disclosed. The device includes a cap, a body for receiving the cap, and a hinge coupling the cap to the body. The cap, body, and hinge are each preferably comprised of plastic and manufactured such that the cap, body, and hinge are of one-piece construction. The cap includes an interior having shredding means. The body includes a chamber having shredding means. Fresh herbs may be placed within the chamber to be shredded after the cap is separated from the body. The hinge is preferably configured to be broken to permit the cap to be separated from the body. The device may also include a latch mechanism for hinging the cap back onto the body and for keeping the cap held onto the body once the device is no longer in use.

A manual grinder, having a shell, a handle and a grinding assembly, wherein the top of the shell has an opening and a swivelling cover, the swivelling cover is provided with a feed port, the feed port is provided with a closing cover, the closing cover is fixed relative to the shell, the swivelling cover is rotatably connected with the shell, the grind assembly is arranged in the shell, a transmission shaft is arranged in the shell, the upper end of the transmission shaft penetrates the swivelling cover and is connected with the handle, and the lower end of the transmission shaft is penetrated in the grinding assembly. It is simple to open the cover and convenient to put materials, the opening of the cover is not affected by the handle, and the overall structure is simple.