A system, for cutting a plurality of lawns, including: A) two or more robotic lawn mowers which each has a rechargeable energy storage, and B) a carrier, which includes: a) at least two holders, each of which is capable of retaining one of the two or more robotic lawn mowers and b) a charging system for the rechargeable energy storage. Also provided is the carrier as such and a method in which the system and the carrier can be used. The mowers are typically battery powered.

A mower includes a main body having an electric motor configured to drive a mowing member, a pair of front wheels, and a pair of rear wheels. A supporting portion is associated with the main body and a handle is connected to the main body and rotatable between a first position and a second position. The handle comprises an operation assembly operable by a user to control the electric motor. A controller prevents the electric motor from being activated by a user operation of the operation assembly when the mower is in a first state in which the supporting portion and the pair of rear wheels are used to support the main body on a supporting surface with the handle in the first position.

A system, for cutting a plurality of lawns, including: A) two or more robotic lawn mowers which each has a rechargeable energy storage, and B) a carrier, which includes: a) at least two holders, each of which is capable of retaining one of the two or more robotic lawn mowers and b) a charging system for the rechargeable energy storage. Also provided is the carrier as such and a method in which the system and the carrier can be used. The mowers are typically battery powered.

A dethatcher includes a frame having a front and a rear end, a handle coupled to the frame and movable between a use position and a storage position, multiple wheels coupled to the frame, a cutting reel housed in the frame, and an engine for powering a drive mechanism of the shaft. The cutting reel includes a shaft having a first end and a second end, at least one cutting mechanism located between the first end and the second end of the shaft, and the drive mechanism for powering the shaft. When the handle is in the use position, the handle extends away from the front end of the frame and when the handle is in the storage position the handle extends toward the front end of the frame.

An autonomous lawn mower includes removable batteries, one or more electric motors, a cutting blade, one or more wheels, an angle sensor, and a controller. The cutting blade is driven by one of the electric motors. The wheels are driven by one of the electric motors. The controller is configured to allow the lawn mower to perform a grass cutting function at a jobsite without human interaction. The controller is configured to determine whether a roll angle is greater than a first predefined amount using data from the angle sensor. In response to determining the roll angle is greater than the first predefined amount, the controller is configured to stop operation of one of the one or more electric motors configured to provide rotational drive power to the cutting blade.

Tool holders for transporting implements such as lawn and garden tools, and configured to be attached to a three-point hitch such as a tractor hitch, or a regular hitch, or to receive such as those on an ATV or lawn mower, or the lip of an object such as a wheelbarrow or yard cart, are described. Also described are washers having triangular ears.

A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.

A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.

A dethatcher includes a frame having a front and a rear end, a handle coupled to the frame and movable between a use position and a storage position, multiple wheels coupled to the frame, a cutting reel housed in the frame, and an engine for powering a drive mechanism of the shaft. The cutting reel includes a shaft having a first end and a second end, at least one cutting mechanism located between the first end and the second end of the shaft, and the drive mechanism for powering the shaft. When the handle is in the use position, the handle extends away from the front end of the frame and when the handle is in the storage position the handle extends toward the front end of the frame.

One apparatus for providing high-resolution CSI feedback includes a processor and a radio transceiver. The processor computes sets of amplitude and phase parameters for one or more channel compression matrices. Here, each channel compression matrix corresponds to one transmission layer of a multiple-layer transmission, where each channel compression matrix is comprised of one or more column vectors. The radio transceiver sends indications of the sets of amplitude and phase parameters to one or more network entities is a mobile communication network.