A bone grinder is provided herein. The bone grinder may have a grinding chamber, an intermediate zone, and a primary cutting element and a secondary cutting element. The intermediate zone may have a first wall and a second wall within the grinding chamber, and the intermediate zone may separate the primary cutting element from the secondary cutting element. The first wall and the second wall may slope inward such that a distance between the first wall and the second wall generally decreases from the primary cutting element to the secondary cutting element. The primary cutting element and the secondary cutting element may be positioned within the grinding chamber to sequentially perform primary cutting operations and secondary cutting operations on a bone. A drive mechanism may operatively engage the primary cutting element and the secondary cutting element.

A vegetable knife includes a pulverizing coring pin for pulverizing a core of a vegetable, where the pulverizing coring pin can be a generally cylindrical tube. The pulverizing coring pin can define one or more pulverizing tubes that extend from a first end of the pulverizing coring pin to a second end of the pulverizing coring pin opposite the first end. The vegetable knife also includes at least one vegetable shaping blade that extends radially outwardly from the pulverizing coring pin, where the at least one vegetable shaping blade supports the pulverizing coring pin at a location generally central with respect to the vegetable knife. The vegetable knife may also include an outer flange for coupling the vegetable knife to a rotatable cutting assembly. The vegetable shaping blade can be connected between the outer flange and the pulverizing coring pin for supporting the pulverizing coring pin.

The method or process described is directed at conditioning and packaging freshly chopped biomass such that it can be stored for a long period of time without spoilage and such that the packaged chopped biomass is easily transportable and its composition and other properties remain stable.

To improve operating efficiency of a dry grinding machine, the dry grinding machine includes a rotating shaft; a first blade that is rotationally driven by the rotating shaft; a grinding chamber that houses the first blade; a feed-in section that feeds material to be processed, which is transported by hot air into the grinding chamber from a direction intersecting the rotating shaft; and a discharging section that is arranged on a side of the first blade opposite the feed-in section, in an axial direction of the rotating shaft, and discharges from the grinding chamber, along with the hot air, the material to be processed that has been ground by the first blade while being dried by the hot air fed in from the feed-in section.

An auto-feed paper shredder is configured for placement below the surface of a desk. The auto-feeder consists of a drawer located on the front surface of the shredder. This drawer is slid out to insert a stack of documents to be shredded. When the door is slid back into the shredder and the shredding system is activated, feed rollers draw sheets of paper either from the top or the bottom surface of the stack and feed the sheets into a conventional paper shredding mechanism. An input slot is provided to insert single sheets of paper when the auto-feeder is not being used.

An implant shredder includes a base and a cutting member. The base includes a first chamber and a second chamber intercommunicating with the first chamber. The first chamber includes an inlet. The second chamber includes an outlet. The cutting member is received in the second chamber. The cutting member is driven by a driving member to rotate. The cutting member includes a plurality of cutting edges located on a circumference of a same radius. The plurality of cutting edges is rotatably disposed adjacent to a location intercommunicating with the first chamber. An implant forming method includes creating data of an outline of an implant; producing a shaping mold based on the data; and cutting a to-be-processed object with the implant shredder, mixing the cut to-be-proceed object with a biological tissue glue to obtain a raw material, and filling the raw material into the shaping mold to form the implant.

A chopping unit (10) of a forage harvester, having a chopping drum (11) bearing chopping blades (15), having a shear bar carrier (17) bearing a shear bar (16) for the chopping blades (15), wherein a top side (20), facing away from the shear bar carrier (17), of the shear bar (16) provides a cutting edge (21) of the shear bar (16), wherein the top side (20) of the shear bar (16) is contoured such that the top side (20) of the shear bar (16) is inclined, at least in a top-side portion (26) facing the chopping drum (11), continuously in the direction of the chopping drum (11) in the contact region with the chopping blades, as seen in the axial direction of the chopping drum (11).

A machine for distributing material from a package of compressed loosefill insulation material is provided. The machine includes a chute having an inlet end and an outlet end. The inlet end is configured to receive compressed loosefill insulation material. A lower unit has a shredding chamber configured to receive the compressed loosefill insulation material from the outlet end of the chute. The shredding chamber includes a plurality of shredders configured to condition the loosefill insulation material. The shredders include a shredder shaft and a plurality of vane assemblies. The vane assemblies are oriented such that adjacent vane assemblies are offset from each other by an angle of about 45° to about 75°. A discharge mechanism receives the loosefill insulation material exiting the shredding chamber and distributes the loosefill insulation material into an airstream and a blower is configured to provide the airstream flowing through the discharge mechanism.

A machine for distributing material from a package of compressed loosefill insulation material is provided. The machine includes a chute having an inlet end and an outlet end. The inlet end is configured to receive compressed loosefill insulation material. A lower unit has a shredding chamber configured to receive the compressed loosefill insulation material from the outlet end of the chute. The shredding chamber includes a plurality of shredders configured to condition the loosefill insulation material. The shredders include a shredder shaft and a plurality of vane assemblies. The vane assemblies are oriented such that adjacent vane assemblies are offset from each other by an angle of about 45° to about 75°. A discharge mechanism receives the loosefill insulation material exiting the shredding chamber and distributes the loosefill insulation material into an airstream and a blower is configured to provide the airstream flowing through the discharge mechanism.

A material reduction machine includes an infeed portion operable to receive material to be reduced, and a cutting mechanism operable to reduce material fed in from the infeed portion. An outlet chute has a first end operable to receive the material reduced by the cutting mechanism and a second end operable to discharge the reduced material from the machine, wherein the outlet chute extends along a curved path. The outlet chute includes, along a radially-inner side of the curved path, a foraminous interior wall providing communication with a sound attenuation layer.