Embodiments of the present invention pertain to a plant trimming machine. Plants are placed in a tumbler. As the tumbler rotates, leaves are sucked through the tumbler by a vacuum assembly and cut by at least one rotatable blade adjacent to the tumbler. The tumbler and blade are housed in separate cartridges so that they can be easily removed and inserted. Thereby, it is relatively easy to clean and replace a tumbler or blade with minimal downtime to the machine.

Embodiments of the present invention pertain to a plant trimming machine. Plants are placed in a tumbler. As the tumbler rotates, leaves are sucked through the tumbler by a vacuum assembly and cut by at least one rotatable blade adjacent to the tumbler. The tumbler and blade are housed in separate cartridges so that they can be easily removed and inserted. Thereby, it is relatively easy to clean and replace a tumbler or blade with minimal downtime to the machine.

A tumble trimmer system having a tumbler barrel with a perforated axle adapted for introducing a freezing agent such as liquid carbon dioxide or other liquefied gas adapted to flash freeze the plant material when infused into the mesh tumbler barrel, the mesh tumbler barrel adapted with mesh netting or screening for trimming and/or separating plant material enclosed therein, and with an open funnel or chute positioned below the tumbler barrel adapted to catch and direct trimmed and/or separated plant material exiting the tumbler barrel into a bin or container positioned under the funnel or chute, wherein the perforated axle comprises a plurality of perforations positioned around a circumference of and along an entire length of the axle.

Disclosed in the present invention is a control system for a normally-on power tool. The power tool comprises a tool head and a power device for providing the tool head with power, and the control system comprises an acquisition circuit and a control circuit. The acquisition circuit is in electrical communication with the power device and used to acquire at least one parameter associated with the power device, and the control circuit is configured to put the power device in a working mode with a first output power or a standby mode with a second output power according to the at least one parameter. The control system according to one or more embodiments of the present invention can save energy consumption, reduce mechanical wear, increase the service life of the power tool, and enhance operation convenience and safety.

A wood chipper having a rotatable drum configured to reduce the size of wood fed into the wood chipper; a sensor configured to sense a speed of rotation of the rotatable drum; and a controller operably connected to the sensor. The controller is configured to cut power to the rotatable drum when the speed of rotation of the rotatable drum drops below a pre-set threshold value. The controller is operably engaged with a centrifugal clutch that is engaged to enable the rotatable drum to be rotated. When the speed of drum rotation drops below the threshold value because debris is slowing down rotation of the drum, the centrifugal clutch is disengaged by dropping engine speed. Disengagement of the centrifugal clutch cuts power to the drum and rotation thereof ceases so that the debris may be cleared.

A cultivation and sampling method for plants grown in a multi-section sampling device, the sampling device including an upper section with an upper section identifier and a number of cultivation containers, and a lower section with a lower section identifier and an equal number of sample containers. When the sampling device is in an assembled position, the upper section is connected to the lower section such that the sample containers are arranged to correspond to the cultivation containers being underneath them.

A cultivation and sampling method for plants grown in a multi-section sampling device, the sampling device including an upper section with an upper section identifier and a number of cultivation containers, and a lower section with a lower section identifier and an equal number of sample containers. When the sampling device is in an assembled position, the upper section is connected to the lower section such that the sample containers are arranged to correspond to the cultivation containers being underneath them.

A method of making an in-feed roller for a wood chipper. The roller has seven, eight, or nine perimetric planar sides. It is made by providing a pair of end plates having a plurality of perimetric edges equal to the number of sides and a plurality of other plates equal to the number of sides. Each of the other plates has a first portion for extending between respective edges of the end plates and a second portion extending radially outwardly of the roller and terminating in a cutting blade. A junction or junction portion is defined between the first and second portions. Each of the end plate edges is provided with at least one first tab extending therefrom. The first portion of each of the other plates is provided with at least one first slot in each of ends thereof. Each junction is provided with at least one second slot therein. The first portion of each of the other plates has an edge opposite the junction, and the edge of the first portion of each of the other plates is provided with at least one second tab extending therefrom. The first tabs are inserted into the first slots respectively. The second tabs are inserted into the second slots respectively.

The invention relates to a device for pruning leaves and/or other undesirable elements from the inflorescences of aromatic plants and/or from vegetable material, comprising a frame, a container and at least one removing element for removing leaves and/or other undesirable elements. The container can contain the vegetable material to be treated and comprising through-openings or slots on its surface, said at least one removing element being located so that it skims said openings or slots in correspondence with at least a portion of the surface of said container, characterized in that said at least one removing element comprises a brush.

Another object of the invention is a treatment line for aromatic plants and/or plant material comprising a pruning device of the described type.