A chopping blade for cutting against a shear bar has a main body made of hardened steel. The blade body is formed with at least one cutting-edge region, a fastening region for fastening the blade to a carrier and in each case a transition region between the cutting-edge region and the fastening region. The main body bears a hard material coating in the cutting-edge region. The hardness of the main body is uniform throughout over all regions. A chopping drum carries a multiplicity of these chopping blades on its periphery and, upon rotation of the chopping drum, the chopping blades cut material upon running up against a stationary shear bar.

A printer that partially cuts roll paper to leave an uncut portion prevents paper jams from reversing the roll paper. A printer 1 has a print unit 41 for printing images on roll paper R; a cutter unit 46 disposed downstream in the conveyance direction from the print unit for cutting the roll paper and leaving an uncut portion; a conveyance unit 42 for conveying the roll paper in the conveyance direction or a reverse direction that is the opposite of the conveyance direction; and a controller 40 that executes a reversing process conveying the roll paper in reverse by the conveyance unit 42 when the roll paper is separated from the paper roll at the uncut portion after the cutter unit 46 cuts the roll paper, and not executing the reversing process in specific circumstances in which the roll paper remains connected through the uncut portion.

A mandoline slicer includes a slicing blade and an adjustable slicing ramp. A series of julienne blades is selectively movable between a stowed and a deployed position above the ramp. At a distal end of the ramp, a blade support is positionable to select either of a plurality of slicing blades.

A pruning system includes a cutting head comprising upper and lower cutting rings positioned along a bottom portion of one or more tubes. At least one cutting ring is adapted to rotate in a circular motion, while the other cutting ring may be adapted to remain stationary. A vacuum may be applied to suction target plant material, and the cutting head may be lowered toward the target plant material. As adjacent blades from the upper and lower cutting rings are separated in an open position, plant material may be collected in the opening defined by the adjacent blades. As the blades converge, the opening may close, and plant material collected in the opening may be severed from the plant. System variables, may be adjusted to accommodate different types of plant material. The pruning system may be used with a vision system to remove materials from plant beds in a field.

A printing mechanism has: a head mechanism including a printing head configured to print on a recording paper; a platen mechanism including a platen roller configured to nip the recording paper with the printing head to feed the recording paper; a fixed blade arranged in one mechanism of the head mechanism and the platen mechanism; and a movable blade arranged in another mechanism of the head mechanism and the platen mechanism in a slidable manner and configured to cut the recording paper with the fixed blade, the another mechanism comprising: a movable blade guide wall arranged upstream of the movable blade in a paper path direction of the recording paper; a first rib protruding from the movable blade guide wall to downstream of the paper path direction; and a second rib formed at a position on the movable blade guide wall, which is separated from the fixed blade with respect to the first rib in a movement direction of the movable blade.

A powered cutter for strap includes a housing, a power supply mounted to the housing, a motor positioned at least in part in the housing and a drive train operably connected to the motor. A cutting head includes a plunger, a cutting blade operably mounted to the plunger, a hold-down biasedly mounted to the plunger, a foot and a shear edge. The drive train is operably connected to the plunger. The plunger moves toward the foot to move the hold-down into contact with the strap, securing the strap against the foot, and as the hold-down secures the strap, the cutting blade contacts and cuts the strap at the shear edge.

A cutting device includes a cutting blade, a receiving block, a motor, a cutting blade movement mechanism, and a receiving block movement mechanism. The cutting blade includes a blade portion. The receiving block includes a contact surface including a first contact surface and a second contact surface. The motor is configured to rotate. The cutting blade movement mechanism supports the cutting blade and is configured to move the cutting blade between a separated position and a contact position in concert with a rotation of the motor. The receiving block movement mechanism is configured to move the receiving block from a first opposed position to a second opposed position in concert with the rotation of the motor.

A rotary cutter apparatus uses an improved geometrical arrangement of parts to optimize cutter speed versus evenness and straightness of cut, increase operating life and quietness of operation, and reduce dust formation and energy consumption.

A process and system provides for atraumatic preparation of morcelized Tissue Particles (MTPs), such as Full Thickness Skin Graft Particles (FTSGPs), cartilage particles and other organ tissue particles, in a liquid medium. The resultant tissue product may be a suspension of Tissue Particles in an aqueous solution and containing highly viable cells and may be rapidly prepared at bedside or in the operating room and conveniently delivered to a patient through a syringe or similar applicator. The MTPs may be used for surgical applications including wound healing, cosmetic surgery, and orthopedic cartilage repairs.

A working head for a hydraulic power tool. The working head includes a head frame and a first moveable die head configured to move along the working head frame. The first moveable die head is configured to receive a first moveable die comprising a first body length and a second die head is adapted to receive a second die comprising a second body length. At least one of the moveable die or the stationary die comprises an elongated die.