Abstract: The subject matter of this specification can be embodied in, among other things, a linear actuator lock apparatus having a housing having an inner surface defining an axial cavity having a first housing portion where the axial cavity has a first lateral size, a second housing portion having a second, larger lateral size, and a face from the first housing portion to the second housing portion, a lock assembly having a lock carrier configured for movement within the cavity between a first position and a position, and a lock finger affixed to and extending away from the lock carrier, where the second finger end is configured to contact the face when extended and fit within the first housing portion when retracted, and a sleeve configured to move between a position in which the lock finger is permitted to extend and a position configured to contact and retract the lock finger.

Abstract: A joint for use with a composite laminated component is disclosed herein. The joint includes a component including a partial U-shaped trapezoidal cavity and a triangular component. The partial trapezoidal component includes a base extending in a first direction, a first side extending away from the base at a first angle from the first direction, a second side extending away from the base at a second angle from the first direction and toward the first side, and an opening defined by the first side and the second side. The triangular component is coupled to the base and extending orthogonally away from the base in a second direction and toward the opening.

Abstract: A storage rack having an embedded display may include a plurality of sections for holding a respective plurality of items. A first section may include, for example, a first vertical support, a second vertical support substantially parallel to the first vertical support, and a first set of horizontal supports substantially perpendicular to the first vertical support and the second vertical support. The first set of horizontal supports may include a first horizontal support disposed at a first height and a first depth in the first vertical support, and a second horizontal support disposed at the first height and the first depth in the second vertical support. The first horizontal support may extend from an inner wall of the first vertical support towards the second vertical support for a distance that is less than half of the distance between the first vertical support and the second vertical support.

Abstract: A rotorcraft aircraft design incorporates double swept forward and aft rotor blades configured to provide efficient hover and efficient cruise at Mach number of 0.65-0.7 without varying a diameter of the rotor. The aircraft design combines the benefits of helicopters and fixed-wing aircraft, enabling vertical takeoff and landing (VTOL) capabilities while also achieving improved forward flight speed and reduced noise emissions.

Abstract: A satellite includes a structural element that is deformable during a collision with space object(s). The structural element includes a first side, a second side spaced apart from the first side to define an interior portion between the first side and the second side, and at least one material disposed within the interior portion. The first side includes a first layer of material with payload element(s) disposed thereon, and the second side includes a second layer of material. The material disposed within the interior portion is designed to absorb energy over time during a collision process with each space object. The first layer, the second layer and/or the material disposed within the interior portion are configured to capture one or more space objects upon collision with the satellite.

Abstract: A rack includes a plurality of floors each of which stores a plurality of bins for containing items, and allows a transportation robot to run along a surface thereof; and a plurality of support columns supporting the floors. Each of the floors includes a plurality of floor modules making up part of each of the floors, and each of the floor modules is detachably supported by the support column. This method for assembling a rack includes steps of: assembling each of the floors from a lower floor to an upper floor by attaching the floor module to the support column; and detaching the at least one floor module from the support column on each of the floors to secure a route for an operator to go down to the floor of the lower floor from the upper floor in the assembling step.

Abstract: A first elongated shaft and a second elongated shaft are removably coupled together at a connector to facilitate collapsing of a handle of the shovel. A spade is attached to a distal end of the first shaft. The connector has two parts, with one of the two parts attached to each of the ends of the shaft that are adjacent to each other. One of the two parts of the connector includes an insert and the other of the two parts includes the receiver, with the insert fitting into the receiver in a removable but secure fashion. The shafts are formed of a robust durable material such as fiber reinforced polymer formed from a pultrusion method. A grip is optionally provided on a proximal end of the second shaft.

Abstract: A wheel assembly is for a unitractor. The wheel assembly has a wheel, a static hub and an internal electrical motor. The wheel has a rim, a traction member arranged to the periphery of the rim and a plurality of magnets arranged to the inside of the rim. The hub has a stator having spherical windings. The wheel is rotatably connected to the hub via at least one bearing. At least one side panel extends from the rim and to the at least one bearing. At least one of an energy source and a controller for controlling the energy source is positioned in the hub. The hub is provided with a coupling member for an implement frame. A unitractor having the wheel assembly is also described.

Abstract: An effector assembly includes: a segment defining a conduit between proximal and distal ends and containing a slidable output member; a first shape-memory transducer affixed between the proximal end and the output member; a second shape-memory transducer affixed between the distal end and the output member; an electrical subassembly to selectively supply current to bias the first transducer to a first memory state and bias the second transducer to a second deformed state, for sliding the output member in a first direction, or bias the second transducer to a second memory state and bias the first transducer to a first deformed state, for sliding the output member in a second direction; a second segment movably coupled to the distal end; and a linkage between the output member and the second segment, to move the second segment relative to the segment in response to sliding of the output member.

Abstract: A charging hub for a base station that is configured to receive an unmanned aerial vehicle (UAV) during docking. The charging hub includes a first bracket and a second bracket that is operatively connected to the first bracket such that the second bracket is movable in relation thereto along a vertical axis of movement to thereby reposition the charging hub from a retracted position into an extended position and facilitate electrical connection of the charging hub to the UAV.

Abstract: Embodiments of a golf course maintenance drone include a housing and a wing assembly coupled to the housing, the wing assembly including a propeller that is configured to provide lift to the housing. In addition, the drone includes a golf course maintenance assembly coupled to the housing. The golf course maintenance assembly is configured to fill divots, repair pitch marks, rake bunkers, or collect debris on the golf course.

Abstract: The invention relates to a track assembly for a tracked vehicle. Said track assembly includes a track support beam configured to support road wheels, a drive wheel member, and a drive arrangement for drive wheel member operation and an endless track disposed around said road wheels and drive wheel member. Said drive arrangement includes a drive unit for driving said drive wheel member, wherein said drive arrangement includes a drive axle being configured to be coaxially arranged relative to a centre axis of said drive wheel member for rotating said drive wheel member. Said drive unit is configured to be journaled in bearings to a portion of the drive axle. Said drive unit includes a torque arm configured to be connected to said track support beam so as to essentially prevent rotation of said drive unit about said centre axis.

Abstract: A clutch for lifting a concrete component, including a toroidal connector, a latch in the form of a locking ring movable relative to the toroidal connector between a disengaged condition and an engaged condition, the locking ring having a handle extending radially outwardly from the toroidal connector, and a coupler for coupling the toroidal connector to a lifting apparatus, wherein the coupler includes a first part and a second part pivotal relative to the first part, the coupler being arranged to limit pivotal movement of the second part relative to the first part.

Abstract: Disclosed is an intelligent folding bicycle with a power wheel, including a front frame assembly and a back frame assembly folded through a rotating assembly, a fixing assembly movably arranged between the front frame assembly and the back frame assembly, a front power wheel assembly movably and detachably arranged on the front frame assembly, a back wheel assembly movably arranged on the back frame assembly, a handle assembly arranged above the front frame assembly, a cushion assembly arranged on the back frame assembly, and two pedals movably and symmetrically arranged on the front frame assembly or the back frame assembly, respectively. According to the present invention, functions of detaching the power wheel and folding the bicycle are achieved.

Abstract: A sheet transportation device includes a guide roll along which a sheet is to be wound. The sheet includes a plurality of tabs provided intermittently in a longitudinal direction along at least one end in a width direction. The guide roll includes a cylindrical roll main body and a short-diameter portion connected with the roll main body so as to be outer, in the width direction of the sheet, to the roll main body. The roll main body is located closer to a center, in the width direction, of the sheet than a transportation path for the end. A portion of the sheet that is closer to the center than the end is wound along the roll main body. The short-diameter portion is connected with the roll main body via a stepped portion, and has an outer diameter shorter than an outer diameter of the roll main body.

Abstract: In a pipe, a first corner portion, a second corner portion, and a third corner portion are formed sequentially from a guide direction upstream stream as a result of an axial direction intermediate portion of the pipe being bent in three places. The first corner portion and the second corner portion are bent in a substantially identical plane, and the third corner portion is bent in a direction deviating from the substantially identical plane. The radius of curvature of the third corner portion is set larger than the radius of curvature of the first corner portion.

Abstract: The present invention relates to a body (2) that is an aircraft, at least one engine (3) that is located on the body (2) and generates the power required for the flight of the aircraft, and at least one exhaust (4) that is located on the engine (3) and transmits the fluid (A) heated inside the engine (3) due to the operation of the engine (3) to the outside of the aircraft.

Abstract: A mobile engine-generator vehicle that uses the same motor system for mobility as it does for electrical power generation. The mobile engine-generator vehicle is configured to provide electrical power to an external load via an electrical outlet mounted to the vehicle.

Abstract: A robot tool for automatically lifting/lowering a vehicle, including a control system, an image system, a plurality of jacks and a driving device. The image system has aiming devices and can capture images above the jacks. The control system can exchange data with the outside world and store data which includes commands, setup information, characteristic parameters and images of vehicles. The control system can obtain positioning images from image system containing information of relative position in horizontal direction between vehicle lifting points and the corresponding jacks. The control system can analyze said positioning images and compare them with the received data to navigate said driving device to move said jacks horizontally, so that each of at least two lifting points of said vehicle can be vertically aligned by a jack below, said control system is capable of operating the jacks to raise or lower the lifted vehicle.

Abstract: A hangar is provided for an unmanned aerial vehicle, and is suitable for being arranged on a vehicle. The hangar includes a hangar body, the hangar body being configured to accommodate the unmanned aerial vehicle; a charging apparatus, the charging apparatus being arranged in the hangar body, and the charging apparatus being configured to charge an unmanned aerial vehicle battery, wherein the unmanned aerial vehicle battery includes a first battery mounted on the unmanned aerial vehicle and/or a second battery outside the unmanned aerial vehicle; and a battery pick-and-place apparatus, the battery pick-and-place apparatus being arranged in the hangar body, and the battery pick-and-place apparatus being configured to detach the first battery from the unmanned aerial vehicle and/or mount the second battery into the unmanned aerial vehicle.