Abstract: A hedge trimmer includes a blade assembly including a first blade and a second blade, a motor including a motor shaft that is capable of rotating about a motor axis, a transmission device configured to transmit motion between the motor and the blade assembly, and a housing formed with a receiving cavity for receiving the motor and the transmission device. The motor drives the first blade and the second blade to move relative to the first blade. The transmission device includes a speed reduction assembly including a first gear for introducing motion output from the motor to the transmission device and an eccentric block assembly including an eccentric block. The eccentric block includes a first eccentric portion for cooperating with the first blade and a second eccentric portion for cooperating with the second blade.

Abstract: A system may include sensor equipment, task performance equipment, and a yard maintenance manager. The sensor equipment may include one or more sensors disposed on a parcel of land. The task performance equipment may be configured to perform a task on the parcel. The task may be associated with generating a result that is enabled to be monitored via the sensor equipment. The yard maintenance manager may be configured to interface with the sensor equipment and the task performance equipment to compare measured conditions with desirable conditions to direct operation of the task performance equipment.

Abstract: A self-powered chainsaw, typically a battery powered chainsaw, including a housing, a power source, an endless cutting chain having a plurality of cutting elements and a motor arranged to drive the chain relative to the housing using power from the power source. The chainsaw also includes a sharpening element which is arranged so as to be driven relative to the cutting elements and the housing using the power source.

Abstract: A self-powered chainsaw, typically a battery powered chainsaw, comprising a housing (1; 21), a power source (5; 25), a endless cutting chain (4; 24) having a plurality of cutting elements and a motor (6) arranged to drive the chain (4; 24) relative to the housing (1; 21) using power from the power source (5; 25), in which the chainsaw further comprises a sharpening element (12; 32) which is arranged so as to be driven relative to the cutting elements and the housing (1; 21) using the power source (5; 25).

Abstract: A typically battery-operated power tool, such as a chainsaw or hedge trimmer, comprising a working element (4), a motor (6) arranged to drive the working element (4) and a controller (9) arranged to control the speed at which the motor drives the working element (4), in which there is provided a sensor (12) for at least one factor indicative of the efficiency with which the power tool is being operated, the controller (9) being arranged to vary the speed at which the motor (6) drives the working element (4) should the factor indicate that the power tool is being operated in a sub-optimal manner. Typically, the factor is the pressure which the user is applying the power tool, and the sensor (12) is a sensor for the current flowing through the motor (6).

Abstract: A steam iron having a water tank, a sole-plate that defines a steam chamber, a drip valve that connects the water tank to the steam chamber, and an anti-drip device includes a water supply channel between the water tank and the drip valve, a valve tappet with a sealing cone, and a return spring. The anti-drip device is a one-piece molded part of elastic material formed as an elongated seal.

Abstract: A rotary scanning device having a stationary upper and lower drum (1,2) is proposed, in which a cylindrical insert (15) with a servo head (16) is arranged in a radial bore (14) in the lower drum (2). The cylindrical insert (15) is secured to the circumference of a ring (18) which is concentrically supported in the lower drum (2) and which has an axial groove (19) in its circumferential surface for the adjustment of the angular position of the ring (18).