Abstract: The present invention provides an open-close device, including a first member, a second member, a third member and a fourth member; the second member is rotatably connected to the first member, the third member is rotatably connected to the first member, the fourth member is rotatably connected to the second member and rotatably connected to the third member; the open-close device further includes an angle adjusting device which is provided at a joint between the third member and the first member, for adjusting the bending angle of the third member with respect to the first member.

Abstract: A system providing a barrier for an autonomous floor cleaner includes an artificial barrier generator that radiates one or more infrared signals. An autonomous floor cleaner can be configured to detect the infrared signals, and can react by altering course. Methods for containing an autonomous floor cleaner within a user-determined boundary are disclosed.

Abstract: A multi-tool (100) includes a power head (120) including a power head housing (122) having a handle (124) operably coupled thereto, a tool attachment (106, 108, 110) configured to perform a work function, the tool attachment (106, 108, 110) being alternately separable from and operably coupled to the power head (120), a motor (140) disposed in the power head housing (122), a battery (130) configured to be operably coupled to the motor (140) to selectively power the motor (140), a power head mating interface (121) including structures disposed at the power head (120) for defining a physical mating assembly, a drive power transfer assembly and an electronic assembly, and a tool mating interface (123) including structures disposed at a housing of the tool attachment (106, 108, 110) for defining the physical mating assembly, the drive power transfer assembly and the electronic assembly.

Abstract: A bidirectional extraction socket may include a driven end configured to receive drive power from a driving tool, a drive end configured to interface with a fastener, and a body portion extending between the driven end and the drive end about an axis of the extraction socket. The drive end includes a fastener engagement recess extending into the body portion and coaxial with the body portion. The fastener engagement recess is configured to engage with the fastener such that the fastener is drivable in either a clockwise or a counterclockwise direction while avoiding contact with corner portions of the fastener.

Abstract: A floor treatment device may include a body portion comprising one or more pumps, one or more spray outlets, and one or more reservoir receptacles configured to receive one or more reservoirs. The one or more pumps are operable to be activated and direct liquids to the spray outlets. The device may include swappable heads, each comprising a body connector configured to mate with a head connector of the body portion. In an embodiment, the head connector may include a sensor system and a controller communicatively connected to the sensor system. When one of swappable heads is connected to the body portion, the sensor system is configured to detect the identity of the swappable heads connected, and the controller is configured to selectively activate, based on the identity of the swappable heads, at least one of the one or more pumps.

Abstract: A rotary impact tool includes a housing, an electric motor, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece of at least 900 ft-lbs of fastening torque. An anvil has a bore defining a hexagonal cross-sectional shape and having a nominal width of 7/16 inches. A hammer is rotationally and axially movable relative to the anvil for imparting the consecutive rotational impacts upon the anvil. A spring biases the hammer in an axial direction toward the anvil. A battery pack has a nominal voltage of at least 18 Volts and a nominal capacity of at least 5 Ah. The rotary impact tool has an overall weight including the battery pack that is less than or equal to 7.5 pounds. A ratio of the fastening torque to the overall weight is greater than or equal to 120 ft-lbs per pound.

Abstract: An armorer's wrench can include an elongate wrench body having an implement end structured and configured to define a plurality of wrench interfaces, and a handle end opposite the implement end being structured and configured to define a handle shape with a molded grip. The plurality of wrench interfaces can include at least one of a barrel nut wrench and a castle nut wrench, and the handle end can be devoid of wrench interfaces. The armorer's wrench can further include a plurality of hammer heads, hammer head storage, and a hammer head receiver. The handle end may be structured and configured to provide the hammer head storage, and the implement end may be structured and configured to provide the hammer head receiver. Each of the plurality of hammer heads may be structured and configured to securely and releasably attach to the hammer head receiver and to the handle end.

Abstract: A pre-loaded cleaning substrate, and related systems and methods for picking up particles with an aspect ratio (L/D) greater than 300 (e.g., hair), or greater than 1200 (e.g., particularly long hairs). The substrate (e.g., a nonwoven) may include only a single layer of material. The pre-loaded substrate is loaded (e.g., during manufacture) with a cleaning composition. The fibers of the substrate may have an average diameter less than 15 ?m, the substrate may have an air permeability of 35 ft3/min to 75 ft3/min, and the liquid cleaning composition may have a surface tension of less than about 50 dynes/cm. Together, the combination of the particular substrate and cleaning composition may facilitate markedly improved ability to pick up high L/D aspect ratio particle debris (e.g., such as hair), while retaining such particles (e.g., providing hair retention index values of at least 20).

Abstract: A hand tool including a first jaw, a first handle fixed to the first jaw, a second jaw, and a second handle pivotally coupled to the second jaw. The hand tool further includes a link member having a first end pivotally coupled to at least one selected from the group of the first jaw and the first handle, and a second end pivotally coupled to the second jaw.

Abstract: A surface cleaning apparatus is provided with a primary fluid distributor and an auxiliary fluid distributor. Each distributor can have a separate and independent flow control actuator. The flow control actuator for the auxiliary fluid distributor is operably coupled with a push-push flow control mechanism, where push-push flow control mechanism has a push on/push off configuration such that pushing the auxiliary flow control actuator once starts fluid flow from the auxiliary fluid distributor and subsequently pushing the auxiliary flow control actuator again stops fluid flow from the auxiliary fluid distributor.

Abstract: A pair of plumbing pliers includes two levers, a pawl and a torque spring. After adjusting the desired bite size according to a diameter of a pipe, the levers are pivoted relative to each other in a first range to clamp and release the pipe repeatedly to rotate the pipe. To adjust a bite size of the pair of plumbing pliers according to a diameter of another pipe, the levers are pivoted and then moved relative to each other in a second range. Little resistance is encountered in the first range. However, considerable resistance is encountered in the second range. Hence, the difference between the first and second ranges can easily be felt. Accordingly, it is not likely that a user will, by mistake, enter the second range, i.e., increase the bite size of the pair of plumbing pliers.

Abstract: A method and apparatus for tightening a screw connection having a motor-operated screwdriver unit, wherein the angle of rotation and the torque are determined during the tightening to be able to stop the tightening process on reaching a desired tightening tension. An increase in the torque over the angle of rotation is determined by a determination device in a first tightening region and a change in the increase in the torque over the angle of rotation is determined in a second, following tightening region, with the screwdriver unit being stopped by a control device on reaching or exceeding of a maximum permitted change in the increase and/or of a change speed that is determined with reference to the increase that occurred in the first tightening region.

Abstract: A sleeve assembly for a shear wrench tool including an output sleeve configured to mate with a nut to facilitate winding of the nut onto a threaded bolt and having a plurality of circumferentially arranged locking features for interlocking with those of a transmission sleeve. A transmission sleeve for transferring torque between the output sleeve and at least one feature of a shear wrench tool transmission section. The transmission sleeve has a first set of circumferentially arranged locking features for interlocking with the locking features of the output sleeve and a second set of circumferentially arranged locking features for cooperating with a locking sleeve. A locking sleeve coupled to the output sleeve in a manner which permits the locking sleeve to rotate between first and second rotational positions relative to the output sleeve.

Abstract: A shear wrench tool including an electric motor having a motor output shaft, a transmission having a plurality of planetary gear stages and an output section having first and second output sleeves the first output sleeve being configured for mating with a nut and the second output sleeve being configured for mating with a tip of a bolt to be sheared, wherein the electric motor is configured to provide torque via the transmission to the output section for causing the first and second output sleeves to be rotated in opposite directions relative to each other in use, and wherein the electric motor, the transmission and the output section are arranged in an axial sequence one after the other such that the first and second output sleeves circumferentially extend coaxially around the same axis that the motor output shaft and the planetary gear stages rotate about.

Abstract: A tensioning apparatus is adapted to simultaneously tension a number of jackbolts of a multi jackbolt tensioner. The tensioning apparatus may be made compact by overlapping gear disks of the spindle gears and further act as a torque multiplier between the other gears of the tensioning apparatus. The tensioning apparatus can be part of a combination with a power transfer assembly.

Abstract: A hand tool includes a handle section, a working end operably coupled to the handle section, and a jaw assembly disposed at the working end. The jaw assembly includes a movable jaw and a fixed jaw. A span defined between the movable jaw and the fixed jaw is adjustable. Each of the movable jaw and the fixed jaw includes an array of teeth defined by ridges that extend substantially parallel to each other. The array of teeth on each of the fixed jaw and the movable jaw includes a first set of teeth having a first width and a first depth, and a second set of teeth having a second width and a second depth. The first depth is less than the second depth and the first width is less than the second width.

Abstract: Disclosed is an apparatus and method of using that grips a rod of small diameter and uniform cross-section of metal, fiberglass, or composite material used to probe the soil to locate underground utilities in a manner that permits a user of any height or strength to ergonomically and safely advance the rod into the soil and retract the rod from the soil regardless of how deep the utility may be buried.

Abstract: A vacuum cleaner includes an improved dual-action filter cleaning mechanism using both a rotational flicking action and a vertical shaking action. A debris removal assembly of the vacuum cleaner can include a filter assembly having a first filter and a second filter arranged in a nested configuration, and a filter cleaning mechanism configured to impart a combination of vertical shaking of the first filter and rotational flicking of the second filter. The filter cleaning mechanism can include a camming mechanism configured to simultaneously move the first filter along the axis and rotate the first filter about the axis while the second filter remains stationary.

Abstract: The invention comprises an adjustable box wrench that can provide a more accurate grasp and/or sufficient grip/contact with the faces of the head of a bolt, nut, and/or similarly related objects. The invention comprises a series of pins and links which form a loop within a hollow body and are folded onto each other to form a tight gripping surface at the wrench's box ends. The invention may also contain slide-switches and/or scroll knobs to help actuate link closure or guide links within the chamber of the body until the desired set of links is within a box end.

Abstract: Central vacuum cleaning system comprising a vacuum source including: a motor within a motor housing and a motor control circuit connected to the motor; a handle to be held by an operator, a flexible hose for connecting the handle to a conduit system that is connected to the vacuum source; a user input interface at an input location on the handle for controlling an operation of the motor through the motor control circuit; and a communications system to transfer control signals from the user input interface to the motor control circuit wherein the communications system comprises an RF wireless transceiver in the handle, and an RF wireless transceiver at the motor control circuit.