Abstract: The present disclosure provides a cargo loader comprising a tractor assembly and a vertical adjustment assembly carried by the tractor assembly. The vertical adjustment assembly comprises a base, a deck platform linked to the base by a lifting mechanism. The lifting mechanism is configured to retract and extend in a vertical direction such that a height of the deck platform varies between a retracted height and an extended height. The vertical assembly further comprises an attachment. The attachment is interchangeably and removably coupled to the deck platform and configured to vary between the predetermined retracted height and the predetermined extended height.

Abstract: A steering system includes a first wheel and a second wheel laterally spaced apart from the first wheel, and a third wheel and a fourth wheel laterally spaced apart from the third wheel. The first wheel is rotatably coupled to a first knuckle and the second wheel is rotatably coupled to a second knuckle. The third wheel and the fourth wheel are both pivotally fixed in a forward-aligned orientation. The steering system includes a first tie rod having a first end pivotally coupled to the first knuckle and a second end pivotally coupled to a mechanical linkage, a second tie rod having a first end pivotally coupled to the second knuckle and a second end pivotally coupled to the mechanical linkage, and an electrical actuator coupled to the mechanical linkage. The mechanical linkage is arranged in front of the electrical actuator relative to a travel direction.

Abstract: A lift device includes a base, a platform that is repositionable relative to the base between a fully raised position and a fully lowered position, a scissor assembly coupling the base to the platform, and a booster. The scissor assembly includes a scissor layer including a first scissor arm pivotally coupled to a second scissor arm, a pulley coupled to the scissor layer, a tensile member wrapped around the pulley, and an actuator configured to vary a working length of the tensile member such that the first scissor arm rotates relative to the second scissor arm to move the platform relative to the base. A booster is positioned to engage a portion of the tensile member and apply an upward force on the scissor assembly when the platform is in the fully lowered position.

Abstract: Disclosed is a system for receiving and sending goods delivered by a drone, including a base assembly and a barrier assembly. The base assembly comprises a platform capable of being arranged on a building, the platform is provided with a working surface; an operating area used for a drone to land and for goods to be placed is arranged on the working surface. The barrier assembly comprises a movable barrier plate. When the drone needs to land to the operating area, the barrier plate moves to a position between the building and the operating area, enabling the barrier assembly to separate the drone and a user.

Abstract: A lift device includes a base, a platform, and a scissor assembly coupling the base to the platform. The scissor assembly includes a first scissor layer, a second scissor layer, and a third scissor layer each including an inner arm pivotally coupled to an outer arm. The first scissor layer has a first middle axis offset vertically from a first end axis center point. A kicker assembly couples an actuator configured to raise and lower the platform to the second scissor layer and the third scissor layer. The kicker assembly includes a kicker with opposing first and second kicker ends. The kicker is pivotally coupled to the second scissor layer and releasably coupled to the third scissor layer. The actuator rotates the kicker relative to the second scissor layer. A guide is coupled to the kicker and configured to limit the rotation of the kicker.

Abstract: A deployable satellite mast consisting of an inflatable tube, which is stored in fan-fold form before deployment and can be deployed by filling the tube with a gas, and which comprises a device for reinforcing and facilitating the deployment of the mast, which device is external to the mast and comprises one or more stays, first ends of which are wound on a reel device and second ends of which are secured to the tube, with the stays unwinding from the reel when the mast is deployed.

Abstract: Apparatus, devices, and methods relating to a mechanical proximity sensor for a slidable extension. An illustrative apparatus may comprise an elevated platform and an extension slidably extendable from the elevated platform toward a workpiece. The apparatus also may comprise a probe coupled movably to the extension. The apparatus further may comprise an indicator connected to the probe and configured to rotate from a first orientation to a second orientation in response to engagement between the probe and the workpiece as the extension approaches the workpiece. The indicator may be configured to complete rotation from the first orientation to the second orientation when a leading edge of the extension is located at a predetermined distance from the workpiece.

Abstract: A lift device includes a base, a platform that is repositionable relative to the base between a fully raised position and a fully lowered position, and a scissor assembly coupling the base to the platform. The scissor assembly includes a scissor layer including a first scissor arm pivotally coupled to a second scissor arm. The first scissor arm is configured to rotate relative to the second scissor arm about a middle axis that extends laterally. A pulley is coupled to the first scissor arm. A tensile member is wrapped around the pulley and coupled to the second scissor arm. An actuator is configured to vary a working length of the tensile member such that the first scissor arm rotates relative to the second scissor arm to move the platform relative to the base.

Abstract: An apparatus for hoisting and forwarding of logs enables the forwarding of logs along an axis towards a processing area. The apparatus is adjustable in height either due to various configuration of ground or to various heights of processing area in various wood processing machines, and is comfortable both for each user as well as for manufacturers and distributors. The apparatus is also easy to transport to any desired locations by using a tractor. To this aim, supporting legs on the apparatus are telescopic and connected a bearing framework, with a movable part engaging the ground. Bearing members on a hoisting unit are telescopic and embedded in the bearing framework, with a displaceable part engaging the ground. The bearing framework may be provided on its side and faced away from the hoisting unit, as well as furnished with a coupling member for connecting the apparatus to a tractor.

Abstract: The present disclosure relates systems and methods involving movable/adjustable platforms and/or guardrails. An example system a bracket configured to be coupled to a fixed structure having a walking surface and a flip door portion rotatably coupled to the bracket. The system also includes a guardrail portion extendibly coupled to the flip door portion and a telescopic linkage further coupling the flip door portion to the guardrail portion. The system additionally includes a locking mechanism with a locking pin. The locking pin is configured to maintain the flip door portion in a raised configuration. The system is configured to be adjusted between the raised configuration and a platform configuration.

Abstract: A lift device includes a base, a platform configured to support an operator, and a scissor assembly coupling the base to the platform. The scissor assembly includes an actuator configured to extend and retract the scissor assembly to move the platform between a fully raised position and a fully lowered position, a first scissor arm pivotally coupled to a second scissor arm, and a prop pivotally coupled to the first scissor arm such that the prop rotates about a lateral axis. The prop is configured to selectively engage an engagement surface defined by at least one of the second scissor arm and a protrusion coupled to the second scissor arm, thereby preventing the platform from reaching the fully lowered position.

Abstract: A fire apparatus includes a chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a ladder assembly coupled to the chassis, and a stability system. The stability system includes at least one of (i) a front downrigger coupled to the chassis or (ii) a rear downrigger coupled the chassis, and an outrigger coupled to the chassis. The at least one of (i) the front downrigger or (ii) the rear downrigger and the outrigger are extendable and retractable to facilitate leaning the fire apparatus at least two degrees relative to a ground surface while maintaining full operational capability of the ladder assembly.

Abstract: The scissor lift includes a horizontally collapsible base, a vertically collapsible frame mounted on the base, a horizontally foldable platform mounted on top of the vertically collapsible frame, and a plurality of wheels mounted on the base. The horizontally and vertically collapsible scissor lift is steerable and the plurality of wheels may be coupled such that they each rotate about a vertical axis synchronously with respect to one another to steer the lift. Further, at least one of the wheels may be self-driving to controllably propel the horizontally and vertically collapsible scissor lift. One or more winches with associated cables may be used to selectively raise and lower the vertically collapsible frame.

Abstract: A lifting bale is mounted on top of an injector head for handling the injector head. The lifting bale includes a lifting arm attached to the injector head, an articulated member attached between the injector head and the lifting arm, the articulated member having a knee joint, and a cylinder, having an extendable and retractable arm, attached between the injector head and the knee joint. The cylinder arm is configured to be moved to raise the lifting arm, and is further configured to be extended and retracted to provide load balancing of the injector head.

Abstract: A surveillance module may be deployed from a vehicle. The vehicle to deploy the surveillance module includes a first portion configured to accommodate a user to operate the vehicle. A second portion includes a module configured to accommodate the user and comprising a roof and an entrance accessible through an interior of the vehicle from the first portion. The second portion also includes a lifting mechanism coupled to the module and operable to move the module vertically from a retracted position to an extended position. A third portion defines an opening to accommodate the module, wherein the roof of the module couples to a periphery of the opening in the retracted position.

Abstract: A “hex-plus-X” linkage for lifting applications, comprising a hexagonal assembly, an X assembly, and actuation means. The hexagonal assembly comprises six bars, B1 through B6, pivotally attached end-to-end in a closed hexagonal loop, B1-B2-B3-B4-B5-B6-B1. B1 is a base bar; B4 is a top bar. The X assembly, comprising two bars B7 and B8 pivotally attached to each other, is pivotally and slidably attached to B1 and B4, thereby eliminating two unwanted degrees of freedom from the hexagonal assembly without limiting the size of B1 or B4. The actuation means is pivotally attached at knee joints between B2-B3 and B5-B6. To save space and eliminate tripping hazards, the knee joints are concave, so that B2-B3 and B5-B6 do not protrude. When actuated, the linkage lifts a load by modulating a distance between B1 and B4. Mechanical advantage is high. Slidable joints bear modest loads, minimizing wear. None of B4 is cantilevered.

Abstract: A scissor lift platform adapted to attach to an existing skid steer loader provides the functionally of a scissor lift to elevate personnel and equipment. The platform comprises hand rails and a lift control panel supported by a hydraulic scissor lift assembly section. The base of the scissor lift assembly is provided with a box-like frame attachable to a front loader portion of the skid steer loader and equipped with a hydraulic pivoting mechanism to keep the platform level.

Abstract: A combination front end loader and man lift. The front end loader includes an adjustable frame with front and rear portions that extend or retract with respect to each other. The front portion is supported by a first pair of wheels and said rear portion is supported by a second pair of wheels. Each wheel is independently driven and steered. The front end loader also includes an engine mounted on the rear portion of the frame. Incorporated into the vehicle is an electro-hydraulic assembly which enables extension and retraction of the adjustable frame. The assembly includes a sensor-responsive microprocessor controller, at least one hydraulic pump, at least one hydraulic drive motor and at least one valve network. The hydraulics control a man lift which attaches to the front of the loader. The man lift can be moved by the loader to a desired location and then raised.

Abstract: A surveillance module may be deployed from a vehicle. The vehicle to deploy the surveillance module includes a first portion configured to accommodate a user to operate the vehicle. A second portion includes a module configured to accommodate the user and comprising a roof and an entrance accessible through an interior of the vehicle from the first portion. The second portion also includes a lifting mechanism coupled to the module and operable to move the module vertically from a retracted position to an extended position. A third portion defines an opening to accommodate the module, wherein the roof of the module couples to a periphery of the opening in the retracted position.

Abstract: An aerial work platform apparatus and method for automatically leveling a mobile aerial work platform, including a base frame, a movable platform, a lift mechanism configured to move the platform in a substantially vertical direction with respect to the base frame, a stabilizing assembly including at least one outrigger leg mounted on the base frame, and a control assembly.

Abstract: The compact scissors lift includes a chassis having a body, a pair of wheels disposed at one end and a pair of steering wheels at the opposite end; a lifting linkset assembly disposed substantially within the base, the linkset assembly shaped to form space for the steering wheels; a steering system operatively connected to the steering wheels in front of the linkset assembly; and a deployable safety guard mechanism, on at least one side of the chassis. Having the linkset assembly within the chassis body reduces the overall stow height of the lift to thereby increase access to work areas, decrease physical expenditure on the user, increase stable steering and increase safe operation on potentially hazardous terrain.

Abstract: An aerial work apparatus comprising a mobile chassis having a longitudinal centerline, a lift mechanism such as a scissors lift having a lower end connected to the chassis and an upper end which supports a work platform. The work platform has a longitudinal centerline which is laterally spaced from and parallel to the longitudinal centerline of the chassis such that the platform is laterally offset relative to the chassis and lift mechanism for substantially stabilizing the apparatus when handling heavy loads positioned at one side of the platform.

Abstract: A surveillance module may be deployed from a vehicle. The vehicle to deploy the surveillance module includes a first portion configured to accommodate a user to operate the vehicle. A second portion includes a module configured to accommodate the user and comprising a roof and an entrance accessible through an interior of the vehicle from the first portion. The second portion also includes a lifting mechanism coupled to the module and operable to move the module vertically from a retracted position to an extended position. A third portion defines an opening to accommodate the module, wherein the roof of the module couples to a periphery of the opening in the retracted position.

Abstract: A lifting and positioning apparatus (10) including a base support (14), an elevator mechanism (12) having an upper and a lower end; an actuator (21) for operating the elevator mechanism between a collapsed and a raised operating position; and a positioning component (20) mounted on the upper end of the elevator mechanism providing for horizontal linear motion backwards and forwards in a first direction (X), horizontal linear motion backwards and forwards in a second direction (Y), and horizontal rotation (Z).

Abstract: The compact scissors lift includes a chassis having a body, a pair of wheels disposed at one end and a pair of steering wheels at the opposite end; a lifting linkset assembly disposed substantially within the base, the linkset assembly shaped to form space for the steering wheels; a steering system operatively connected to the steering wheels in front of the linkset assembly; and a deployable safety guard mechanism. on at least one side of the chassis. Having the linkset assembly within the chassis body reduces the overall stow height of the lift to thereby increase access to work areas, decrease physical expenditure on the user, increase stable steering and increase safe operation on potentially hazardous terrain.

Abstract: A surveillance module may be deployed from a vehicle. The vehicle to deploy the surveillance module includes a first portion configured to accommodate a user to operate the vehicle. A second portion includes a module configured to accommodate the user and comprising a roof and an entrance accessible through an interior of the vehicle from the first portion. The second portion also includes a lifting mechanism coupled to the module and operable to move the module vertically from a retracted position to an extended position. A third portion defines an opening to accommodate the module, wherein the roof of the module couples to a periphery of the opening in the retracted position.

Abstract: A scissors lift includes a scissors arm assembly secured at one end to a base and coupled with a lift mechanism that expands and contracts the scissors arm assembly. A platform is supported at an opposite end of the scissors arm assembly via a plurality of load sensing pins that detect a vertical load on the platform. An interface module receives signals from the load sensing pins and communicates with the lift mechanism, wherein the interface module controls operation of lift functions and the lift mechanism according to the signals from the load sensing pins. Preferably, the load sensing pins are sized substantially the same as the conventional pins they replace. As a consequence, no redesign or additional structures are necessary to install the load sensing system and provide a safe operation of the scissors lift machine.

Abstract: A wheeled maintenance stand for aircraft has a worker platform elevated by a pair of double scissor linkages, which have track and follower connections with a mobile base frame and the worker platform. A staircase with self-leveling steps is connected to a laterally outer side of one of the double scissor linkages. A power unit supplies fluid power for propelling the stand, operating the scissor linkages and steering. The upper worker platform has left, right and center rolling sections. A manually operated brake is provides for each of the rolling sections. Electric power, compressed air and cooling air are supplied to the upper work platform.

Abstract: An elevating load platform comprising a base member and a load supporting member interconnected by a linkage means that facilitates vertical movement of the load supporting member generally parallel to the base member, and a plurality of coil springs positioned to urge the load supporting member upwardly relative to the base member so that when the load supporting member is laden the coil springs are compressed, and as the load is progressively removed the coil springs urge the load supporting member upwards to thereby maintain the load supporting member at a desired height, the linkage means comprising a pair of spaced scissor linkages interconnected by a central cross-member, the plurality of compression springs being positioned in a spaced array interposed between the base member and the cross-member.

Abstract: An anti-sway stabilizer accessory support means and a utility tray assembly are disclosed. The utility tray assembly may be readily attached to any standard scissors lift and provide convenient storage of frequently used items by a worker.

Abstract: A lift assembly includes a first platform provided with a top surface, a pair of opposed sides, and wheels and brackets connected to one of the sides for rotating the assembly. A plurality of rectilinear support shafts have opposed end portions conjoined to the platform and extending upwardly therefrom, and are spaced at opposed corners of the platform. Inverted U-shape guide rails are telescopically engageable along a length of the support shafts and have a pair of rectilinear regions slidably positionable about the support shafts. A second platform is provided with top and bottom surfaces, and apertures formed at opposed corners thereof that are vertically registered with the support shafts. A lifting mechanism is included for vertically biasing the second platform and the guide rails along the support shafts. The lifting mechanism is connected to the top surface of the first platform and the bottom surface of the second platform.

Abstract: A pollution containment apparatus for removal of polluted material from a ceiling and/or a wall. The apparatus has a platform which can support a workperson and can be raised and lowered. A support on the platform holds a enclosure. The enclosure has gloves and a waste bag attached. A portion of the top of the enclosure can be opened and closed for access to the polluted portion of the ceiling and/or the wall. The entire completely assembled apparatus can be moved from one location to another.

Abstract: A ground-movable load-lifting vehicle for lifting a load over ground. The vehicle comprises a platform bed, a ground-movable carriage, and an extendible scissor linkage assembly supporting the platform bed spacedly over the carriage. A hydraulic ram system enables power extension of the scissor linkage assembly against the bias of a load supported by said platform bed. The carriage further includes peripheral ground-engageable pivotal casters, rotatably mounted to the carriage in spaced apart fashion, and a pair of ground-engageable drive wheel assemblies, mounted for relative movement to a central portion of the carriage, wherein the drive wheel assemblies provide omnidirectional displacement capability for this load-lifting vehicle. A power unit, controlled by an electronic circuit, powers both the hydraulic rams of the scissor linkage assembly and the drive wheel assemblies.

Abstract: Variable height device includes a platform and a lifting mechanism for raising the platform relative to its base. The lifting mechanism may include a scissors lift connected to the platform and a hydraulic cylinder pivotably attached to the scissors lift for raising the platform away from the base. The pivotable attachment of the cylinder may be horizontally and vertically offset from a pivot connection of the scissors lift. A stabilizer may be provided that is sufficiently long to engage a surface on which an all terrain vehicle is located when a base is provided on the device and when the base is mounted on an all terrain vehicle. A ladder may be attached to the platform. An enclosure may at least partially enclose the platform. The base may be configured for being disposed on a bed of a truck.

Abstract: A scissors lift includes a scissors arm assembly secured at one end to a base and coupled with a lift mechanism that expands and contracts the scissors arm assembly. A platform is supported at an opposite end of the scissors arm assembly via a plurality of load sensing pins that detect a vertical load on the platform. An interface module receives signals from the load sensing pins and communicates with the lift mechanism, wherein the interface module controls operation of lift functions and the lift mechanism according to the signals from the load sensing pins. Preferably, the load sensing pins are sized substantially the same as the conventional pins they replace. As a consequence, no redesign or additional structures are necessary to install the load sensing system and provide a safe operation of the scissors lift machine.

Abstract: A ground-movable load-lifting vehicle for lifting a load over ground. The vehicle comprises a platform bed, a ground-movable carriage, and an extendible scissor linkage assembly supporting the platform bed spacedly over the carriage. A hydraulic ram system enables power extension of the scissor linkage assembly against the bias of a load supported by said platform bed. The carriage further includes peripheral ground-engageable pivotal casters, rotatably mounted to the carriage in spaced apart fashion, and a pair of ground-engageable drive wheel assemblies, mounted for relative movement to a central portion of the carriage, wherein the drive wheel assemblies provide omnidirectional displacement capability for this load-lifting vehicle. A power unit, controlled by an electronic circuit, powers both the hydraulic rams of the scissor linkage assembly and the drive wheel assemblies.

Abstract: A low level scaffold with ball screw drive is a lightweight, mobile, compact, electrically activated, self-erecting, scissor-type lifting platform. The electronic system utilizes an electric motor in direct drive arrangement with a ball screw assembly to vary the platform height from a retracted position to extended position. Electric switches limit reverse direction between the retracted and extended positions to vary platform height anywhere between the minimum and maximum heights above ground level. The design allows for transportation through household doorways and provides anti-tilt arms with threaded level mounts for use on non-level surfaces. The scaffold provides homeowners and small commercial contractors with an apparatus to perform small interior and exterior projects at elevated heights.

Abstract: A working platform assembly, includes a platform, and a scissor-type mechanism for extending and retracting the platform. The scissor-type mechanism has a plurality of superimposed pairs of arm members, thereby defining a lower first pair of arm members and at least one further second pair of arm members being positioned thereabove. The arm members of the first and second pairs of arm members have a cross section which decreases in upward direction, wherein the second pair of arm members has an upper end and includes an inner side formed with an outwardly directed slope which is realized by attaching the upper end of the arm members at a slanted angle.

Abstract: A multipurpose machine is provided with independently operable scissors lift functionality and fork lift functionality enabling the machine to perform a number of tasks such as moving personnel and tools, lifting loads, fetching parts, and easy access to equipment/material while working at heights. The machine includes a base, a platform lift mechanism defining a scissors lift secured to the base, and a platform supported by the scissors lift. A fork lifting mechanism secured to the base includes a mast assembly and lifting forks coupled with the mast assembly. The base is preferably fitted with wheels mounted on respective axles, one of which may be an oscillating axle to increase the mobility of the machine. The independent operability of a scissors lift and fork lifting mechanism in a single multipurpose machine provides versatility for numerous applications.

Abstract: An expandable safety guard for a scissor lift is disclosed. The safety guard has a plurality of pivoting plates or blades which expand to create a barrier preventing insertion of objects and body parts between the arms of the scissor lift. A method of preventing pinching at the joints connecting arms of a scissor lift is also disclosed.

Abstract: A portable, collapsible hunting box enclosure is constructed on a wheeled trailer. The hunting box enclosure may be raised and lowered through a scissor action support structure mounted on the trailer and powered by an electric winch. When the enclosure is to be transported, hinged wall panels enable the box to be folded and collapsed into a flat stack within the trailer. Once collapsed, reinforced wire panels or runners mounted on side members of the trailer rotate inward to overlay the collapsed box, providing a platform upon which an ATV may be loaded. The hunting stand/trailer combination may then be towed, with the ATV loaded thereon, by a full-size motor vehicle. Upon reaching a hunting area, the ATV may be unloaded and used to tow the hunting stand/trailer combination to a specific hunting site where the collapsed box is unfolded, to erect the enclosure, and elevated using the scissor action support structure.

Abstract: Aerial work platform apparatus comprising a vehicle, a work platform, a lift on the vehicle for elevating and lowering the work platform, and a stabilizer for inhibiting tipping over of the apparatus when the work platform is elevated. The stabilizer is mounted on the vehicle for movement between a raised retracted position and a lowered position for engagement with the surface traversed by the vehicle should the apparatus start tipping. A mechanism moves the stabilizer between its raised and lowered positions.

Abstract: A low level scaffold with ball screw drive is a lightweight, mobile, compact, electrically activated, self-erecting, scissor-type lifting platform. The electronic system utilizes an electric motor in direct drive arrangement with a ball screw assembly to vary the platform height from a retracted position to extended position. Electric switches limit reverse direction between the retracted and extended positions to vary platform height anywhere between the minimum and maximum heights above ground level. The design allows for transportation through household doorways and provides anti-tilt arms with threaded level mounts for use on non-level surfaces. The scaffold provides homeowners and small commercial contractors with an apparatus to perform small interior and exterior projects at elevated heights.

Abstract: A flanged link cross tube (1) for use in pivotal connections of beams (10) that locates weld roots (5) to the outer mating surface of beam (10) and flange (4). As the beams (10) rotate about a pivot connection, high torque loading occurs along the common plane (Z) between adjacent beams (10). Locating weld roots (5) on the outer mating surface of beams (10) and flanges (4) reduces loading on weld roots (5) and extends the useful life of a scissors lift (20).