Abstract: A pressure reducer assembly (100) includes a pressure reducer body (110) defining at least one pressure reducer chamber (120) along a central axis (X-X?). The pressure reducer chamber (120) includes an inlet section (122) and an outlet section (124) fluidly coupled with the inlet section (122). The pressure reducer assembly (100) further includes a spring-operated hollow piston rod (121) having a center (X) along the central axis (X-X?), a cylindrical inner peripheral surface comprising an inner diameter (A), and a cylindrical outer peripheral surface comprising an outer diameter (B). A diaphragm (128) made of elastic material is adapted to be operatively coupled with the piston rod (121). The diaphragm (128) includes a central hole (150) having a center (Y) along a central axis (W-W?) and a diameter (C).

Abstract: A lawn mower may include a blade housing configured to house a blade assembly, a powerhead configured to selectively operate the blade assembly responsive to application of power from one or more batteries, a battery receptacle operably coupled to the powerhead and configured to receive the one or more batteries, and a battery adapter configured to be operably coupled to the lawn mower and to a backpack battery to enable the powerhead to receive power from the backpack battery in addition to or as an alternative to one of the one or more batteries when the backpack battery is removed from a backpack harness and mated with the battery adapter.

Abstract: An outdoor robotic tool (100) comprising a switching assembly (104) comprising a carry handle (106) and a stop button (108) is disclosed. The carry handle (106) and stop button (108) are connected such that the raising of the carry handle (106) results in the stop button (108) being activated and vice versa. The activation of the stop button (108) results in the outdoor robotic tool (100) being rendered inoperable in some way. A lift-indication mechanism (126) may be present, which renders the outdoor robotic tool (100) inoperable if it is lifted. Either or both of the switching assembly (104) and lift-indication mechanism (126) may be present on the outdoor robotic tool (100).

Abstract: A modular drive assembly may include an electric motor, a housing at least partially enclosing the motor, an electronic connection assembly configured to electrically couple the electric motor to a host device, and an accessory attachment assembly configured to mechanically couple the modular drive assembly to an accessory to operate a working assembly of the accessory using only electrical power provided from the host device. The accessory attachment assembly may be configured to be releasably attached to the accessory and at least one other accessory of a different type than the accessory.

Abstract: A two-stroke engine (1) is disclosed comprising a cylinder (2), a piston (3) arranged to reciprocate in the cylinder (2), a crankcase (5), a fuel injector (7) configured to inject fuel into the crankcase (5), an air inlet (9) connected to the crankcase (5), and a stratified scavenging intake (11) connected to the cylinder (2). The engine (1) comprises a throttle (13) configured to control the amount of air supplied to the air inlet (9) and to the stratified scavenging intake (11). The present disclosure further relates to handheld power tool (50) comprising an engine (1).

Abstract: The invention concerns a navigation device for a mobile robot comprising means for measuring the amplitude and the phase of an electromagnetic signal emitted by a wire acting as limit for a working area of the robot. The measuring means samples the amplitude of the signal during each time interval, the result of each measurement is stored in a memory and the measurements are repeated for several time intervals, the collected results being added in said memories until the content of a memory reaches a reference threshold. The number of samples required and the content of each memory is interpreted by numerical analysis to determine the distance or distance variation relative to said limiting elements. Any phase change corresponding to a passage beyond the limiting wire is easily detected and results for example in a command returning the robot to its working area.

Abstract: In a sewing machine with electronic pattern data circuits for the generation of signals used for sewing fancy seams, it is possible to save spacing in the data memory by dividing the fancy seams into seam elements of several stitches so that every seam is composed of a plurality of seam elements and one and the same seam element is part of several fancy seams. A sewing machine utilizing the seam element principle must have two different memories, one stitch memory storing every element stitch by stitch and one seam instruction list storing for each fancy seam the sequence of seam elements forming the selected seam.