Abstract: A patient support including a traction device for powered movement of the patient support. The traction device includes a storage position and a use position.

Abstract: Disclosed are a driving system and method of a hybrid electric vehicle. The hybrid electric vehicle driving system includes a generator to generate electric energy from rotating power input thereto, and an electric motor to generate rotating power from electric energy supplied thereto. An auxiliary drive wheel is movably provided to be raised or lowered. When being lowered, the auxiliary drive wheel is rotated in contact with the ground surface, to provide the generator with rotating power generated upon rotation thereof. A power distributor is provided to distribute the rotating power generated from the electric motor or auxiliary drive wheel, so as to provide the generator with regenerative energy, or to provide a drive wheel with rotating power. A control unit controls distribution of the rotating power by controlling the supply of electric current to the power distributor.

Abstract: A control system for a vehicle having first and second wheels is provided that includes a differential apparatus adapted to distribute torque between the first and second wheels and a traction controller for controlling operation of the differential apparatus from vehicle launch up to a predetermined vehicle speed. The traction controller is configured to engage the differential apparatus in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the differential apparatus in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate. The control system also includes a stability controller for controlling engagement of the differential apparatus at or above the predetermined vehicle speed.

Abstract: The invention relates to a hospital bed (3) with a chassis (2), with four rollers (4) arranged on the chassis (2), and with at least one further auxiliary roller (1) that can be brought into contact with the floor or can alternatively be driven, wherein the auxiliary roller (1) is mounted on a rigid frame (5) and, together with the frame (5), can be raised or lowered relative to the chassis (2) by pivoting, wherein a drive motor (9) secured on the frame (5) is additionally provided for the auxiliary roller (1), and a separate pivot drive (23) is provided for raising and lowering the auxiliary roller (1). To advantageously design a hospital bed of this type in the manner specified at the outset, it is proposed that the separate pivot drive (23) is secured entirely on the frame (5) and pivots with the latter.

Abstract: The present invention provides a kit for attaching a manually operated wheelchair to a motorized scooter having a seating apparatus and supporting structure and a floor, comprising: (a) a motorized scooter attachment angle iron, wherein the angle iron comprises: (i) a vertical wall; and (ii) a horizontal wall, the horizontal wall forming approximately a right angle to the vertical wall, wherein the horizontal wall has at least two embedded elongated slots; (b) an angle iron attachment adjustable bar, wherein the adjustable bar comprises (i) a left elbow shaped tubular segment having a horizontally oriented bottom end and a vertically oriented top end; (ii) a right elbow shaped tubular segment having a horizontally oriented bottom end and a vertically oriented top end; and (iii) a straight middle tubular segment having a diameter larger than the left segment and the right segment, so as to permit the left segment to insert into a left end of the middle tubular segment and so as to permit the right segment to i

Abstract: A powered maneuverable and retractable trailer jack adapted for attachment to a tongue of a trailer has an external sleeve, a gear rack on an exterior of the external sleeve, a housing containing at least one gear engaged with the gear rack and operative to move the external sleeve relative to the housing, the housing including a mount configured for attachment to the tongue of a trailer whereby the external sleeve is laterally offset relative to the tongue of a trailer, an internal rod within the external sleeve, the internal rod extending through a wheel fork at a lower distal end of the internal rod and the external sleeve and attached to a drive gear which is engaged with a shaft gear upon a drive shaft rotationally mounted in the wheel fork, and a drive sprocket attached to the drive shaft, a wheel mounted upon an axle rotationally mounted within the wheel fork, and a wheel sprocket attached to the axle proximate to the wheel, and a chain which extends continuously from the wheel sprocket to the drive sp

Abstract: In a traveling device according to the present invention, self-support and conveyance of the device by dragging are facilitated. Two wheels 1L, 1R are provided in parallel, and the wheels 1L, 1R are provided respectively with independent driving means (motors) 2L, 2R. The driving means 2L, 2R are connected by vehicle main bodies 3U, 3D divided into an upper side and a lower side. Further, casters 32L, 32R are provided on a rear side of the lower side vehicle main body 3D via support portions 31L, 31R. The casters 32L, 32R are rotated freely by rotary shafts 33L, 33R including a bearing or the like. Further, the casters 32L, 32R are disposed such that a tangent linking the respective outer peripheries of the casters 32L, 32R to the wheels 1L, 1R forms a predetermined angle ?d relative to a road surface. The angle ?d is set to be larger than a maximum tilt (departure angle) within an assumed normal traveling range of the vehicle.

Abstract: A patient support including a traction device for powered movement of the patient support. The traction device includes a storage position and a use position.

Abstract: The wheelchair with middle wheel drive has a wheel frame (11) comprising a front portion (13) and a back portion (15) pivotally connected together by a hinge (17). At least one front wheel (23), two middle wheels (21) and at least one auxiliary wheel (25) are provided. It is important that the auxiliary wheel (25) is located between the front wheel (23) and the middle wheels (21) and at a distance from the running plane (27) of these wheels. On surmounting an obstacle (43) the gas spring (17) is biassed both by the front wheels (23) and the auxiliary wheel (25) and is released again on the further travel of the wheelchair. This facilitates surmounting of obstacles.

Abstract: A hospital bed includes a carrier frame, a driven wheel unit disposed below the frame, a motor unit, a drive wheel unit disposed below the frame and coupled operably to the motor unit in such a manner that actuation of the motor unit results in rotation of the drive wheel unit. A lifting-and-lowering device interconnects the frame and the drive wheel unit for lowering and lifting the drive wheel unit with respect to the driven wheel unit between an upper position, in which, the drive wheel unit is disposed at an elevation above the driven wheel unit, and a lower position, in which lower surfaces of the driven and drive wheel units are flush with each other.

Abstract: The boat trailer tug includes a primary frame with a mounting beam that is attachable to a boat trailer frame. A primary collar is fixed to the mounting beam front end. A hitch tongue is connected to the collar and extends forward from the collar. A hitch ball receiver is mounted on a front end of the hitch tongue for connecting the tug to a towing vehicle. A vertical height adjustment frame is slidably connected to the collar. A linear actuator moves the height adjustment frame up and down relative to the collar. A power unit frame is pivotally attached to the height adjustment frame for pivotal movement about a vertical axis. A motor, transmission and driven wheels are mounted on the power unit frame. The linear actuator raises and lowers the driven wheels. A steering system pivots the power unit frame to steer the tug.

Abstract: An apparatus for controlling driving forces supplied to left and right wheels of a vehicle, for effectively inhibiting oversteer and understeer states, includes driving force adjusting device for adjusting driving forces supplied to the left and the right rear wheels, first controlling device for controlling the driving force adjusting device such that a wheel speed difference between the left and the right rear wheels coincides with a target wheel speed difference, and second controlling device for controlling the driving force adjusting device such that a yaw momentum of the vehicle coincides with a target yaw momentum. If the vehicle is in an understeer state, the contribution of the second controlling device is increased relative to that the first controlling device and if the vehicle is in an oversteer state, the contribution of the first controlling device is increased relative to that of the second controlling device.

Abstract: A trailer provided with a manoeuvring device. The manoeuvring device has a pivoting frame that can be moved with respect to the chassis of a trailer, such as a caravan, and is provided at the end with a roller driven by an electric motor. This roller does not engage on one of the wheels but is itself able to function as a wheel. Lifting of the chassis of the trailer is achieved with the aid of the pivoting frame, as a result of which the existing wheels at least partially lose contact with the ground surface.

Abstract: A patient support including a propulsion device for moving the patient support. The patient support includes a propulsion system having a propulsion device operably coupled to an input system.

Abstract: A wheel board comprising a wheel (2) with a diameter of 0.2 to 0.6 m mounted on a free wheel (21), mounted on an axle (3) situated on a vertically pivoting arm (4) arranged on the board (1), and mounted freewheeling and driven by a driving drum (17) around which is wound a band (11) that is fixed to said driving drum (17) by a first end and that is connected to the board by its second end, said driving drum (17) being equipped with a return device (19) so that, when the board (1) is not loaded, the central wheel (2) is in a lower position relative to said board (1) and said band (11) is wound around the drum (17) driving the wheel.

Abstract: A materials handling device includes a chassis, handle shaft pivotally mounted to the chassis for maneuvering the device, two rollers rotationally mounted to the chassis, battery pack supported on the handle shaft, electric motor and gearbox fitted in one roller in-line with a rotational axis thereof, and a controller supported on the chassis and having capacitors charged by the battery pack so as to have available when needed a store of electrical power. The controller is electrically connected between the battery pack and electric motor such that the store of electrical power can be supplied to the electric motor which, via the gearbox, can transmit a high torque driving output, when needed and instantaneously, to the one roller to thereby enable the device to move across a surface and to manipulate and move a heavy load.

Abstract: A patient support including a propulsion device for moving the patient support. The patient support includes a propulsion system having a propulsion device operably coupled to an input system. The input system controls the speed and direction of the propulsion device such that a caregiver can direct the patient support to a desired location.

Abstract: A patient support including a propulsion device for moving the patient support. The patient support includes a propulsion system having a propulsion device operably coupled to an input system.

Abstract: A patient support including a propulsion device for moving the patient support. An automatic braking system is provided to selectively brake the patient support.

Abstract: A powered wheeled carriage includes a patient support and a wheeled base. An auxiliary wheel mechanism includes an auxiliary wheel spring support for biasing an auxiliary wheel into contact with a floor. Operating a control apparatus moves the auxiliary wheel away from the floor. A drive handle pivots about a single axis to control a drive motor that powers the auxiliary wheel. The drive handle controls driving of the wheeled carriage in forward and rearward directions. A decision/drive circuit ramps the speed of the wheeled carriage for a few second after start-up to prevent a jerking motion. A display/control panel displays the condition of the carriage brake and the condition of the auxiliary wheel to assist an operator.

Abstract: A baby walker includes motor-driven wheels with the motor being connected to sensors on the walker and to a remote control system. The sensors on the walker prevent the walker from colliding with objects, such as furniture or the like, and the remote control system includes hand-held or belt-worn controls that are in the possession of an adult so the adult can exert control over movement of the walker. A seat is also included so small children can be placed in the walker if desired.

Abstract: A method for converting an ordinary wheelchair over to electric. The method employs a small electric scooter and fastener that are easily connected and separated for ease of transport. The result is a lightweight and low cost system having a high degree of versatility. The attachable connector between the wheel chair and the electric scooter may involve addition and or modification to the wheelchair, the scooter or both.

Abstract: A motor drive for a bicycle is provided. The motor drive includes a drive wheel and a motor device driving the drive wheel. The drive wheel contacts the ground and moves the bicycle by rotating friction between the drive wheel and the ground. The motor device includes a fixing portion that attaches the motor device to the frame of the bicycle, and a driving portion that holds the drive wheel and drives the drive wheel. The driving portion is pivotable with respect to the fixing portion between a parking state and a driving state. The drive wheel is spaced from the ground in the parking state, and contacts the ground in the driving state.

Abstract: A patient support including a propulsion device for moving the patient support. The patient support includes a propulsion system having a propulsion device operably coupled to an input system. The input system controls the speed and direction of the propulsion device such that a caregiver can direct the patient support to a desired location.

Abstract: An electric drive attachment for a wheelchair comprising a drive housing containing an electric motor, a drive wheel which touches the ground and drives the wheelchair through frictional contact with the ground and speed reducing mechanism between the motor and drive wheel, attachment structure to attach the wheelchair drive unit to the wheelchair as a pair of clamps one on each side of the frame. Also included are torque dampening systems to reduce the shock of starting the motor, a clutch which enables manual forward movement of a wheelchair without engagement of the motor and without dragging of the drive wheel, an under run wheel and positive pressurization of the gear works and area surrounding the drive wheel to keep the housing free of debris.

Abstract: A power assisted wheeled carriage includes a patient support having a length, a wheeled base supporting the patient support, and an auxiliary wheel mechanism including an auxiliary wheel spring support for biasing an auxiliary wheel into contact with a floor. The carriage further includes a control apparatus for moving the auxiliary wheel away from the floor. The auxiliary wheel spring support can be a spring steel member having an opening and biased to move the auxiliary wheel into contact with the floor. The control apparatus can include a foot pedal for turning a rotatable shaft that enables a cam apparatus to apply an upward force to the auxiliary wheel. The wheeled carriage also includes a drive handle pivotable about a single axis to control a drive motor for the auxiliary wheel. The drive handle controls driving of the wheeled carriage in forward and rearward directions. Safety sensors on the drive handle require grasping thereof at a specific location to operate the carriage.

Abstract: A detachable transmission mechanism for a wheel chair includes a control unit, two support frames, a suspension frame and a driving device. The channel clamps of the two support frames can be connected to two lower transverse rods of an existing wheel chair and the joining tubes at two sides of the battery unit is connected to the joining pipe so that the battery unit can be fixed beneath a seat of the wheel chair; furthermore, the control unit is positioned on one side of one of armrest of the wheel chair so that in case of the handle being rotated, the vertical shaft, rotary plate and the connecting rod can move relatively and in turn rotate the suspension frame as well as the driving device; and when a control switch is turned on, the driving wheel can be rotated in either forward or reversed direction and thus move the wheel chair forward or backward.

Abstract: A two wheeled trailer is used to propel a two wheeled vehicle such as a bicycle or a scooter. The trailer is powered by an electric motor and at least one battery. The control of the motor is through a potentiometer attached to the handlebars of the vehicle and in electrical communication with a controller. The trailer is attached to the vehicle by an attachment arm that is mounted near the rear axle of the vehicle. A coupler that allows three axes of rotation attaches the trailer to the vehicle.

Abstract: A fifth wheel support assembly having a frame with plural floor engaging wheels mounted thereon. A housing configured for movement relative to the frame is provided as is a spring mechanism oriented between the frame and the housing so as to continually urge the housing toward the floor. An auxiliary wheel is mounted for rotation on an axle secured to the housing. A drive motor mechanism is provided and is fastened between the frame and the housing to effect a raising and a lowering of the housing and the auxiliary wheel mounted thereon.

Abstract: A detachable transmission mechanism for a wheel chair includes a control unit, two support frames, a suspension frame and a driving device. The channel clamps of the two support frames can be connected to two lower transverse rods of an existing wheel chair and the joining tubes at two sides of the battery unit is connected to the joining pipe so that the battery unit can be fixed beneath a seat of the wheel chair; furthermore, the control unit is positioned on one side of one of armrest of the wheel chair so that in case of the handle being rotated, the vertical shaft, rotary plate and the connecting rod can move relatively and in turn rotate the suspension frame as well as the driving device; and when a control switch is turned on, the driving wheel can be rotated in either forward or reversed direction and thus move the wheel chair forward or backward.

Abstract: A power generating device that includes a dynamo, a rack mounted on the frame of a bicycle to hold the dynamo, and a wheel attached to the rack. When the device is engaged, the wheel contacts the ground and rotates to drive the dynamo while the bicycle is in motion, causing the dynamo to generate electricity.

Abstract: To improve convenience of a wheelchair by enabling an outside fitting type of auxiliary power device to be automatically and securely mounted on and removed from the habituated wheelchair, the auxiliary power device, which can be mounted on and removed from the wheelchair and provide power assistance to the wheelchair, comprises photoelectric sensors for detecting positions of predetermined frames of the wheelchair, arms, each having a handle of a shape capable of being engaged with the frames attached to an outer end thereof, and driving motors for displacing the arms. When the frames are determined to be at predetermined positions based on information from the photoelectric sensors, the arms are displaced by the driving motors so as to have the handles engage with the frames.

Abstract: A two wheeled trailer is used to propel a two wheeled vehicle such as a bicycle or a scooter. The trailer is powered by an electric motor and at least one battery. The control of the motor is through a potentiometer attached to the handlebars of the vehicle and in electrical communication with a controller. The trailer is attached to the vehicle by an attachment arm that is mounted near the rear axle of the vehicle. A coupler that allows three axes of rotation attaches the trailer to the vehicle.

Abstract: A motor-assisted hand-movable cart that can have an identical cart inserted into it in a space-saving manner, whereby the cart is provided with: a drive chassis having two front casters and two back casters; a pushing device; a storage device for goods; a support section below the storage device, on which is disposed at least one running wheel that is located between the two front and the two back casters, and an electromotor drive unit, this drive unit driving the at least one running wheel; and a power source for supplying the electromotor drive unit located in a space not required by a further pushcart to be inserted into the pushcart during the insertion process.

Abstract: A package operable to provide power assist to a pedal operated vehicle having a rear wheel, the vehicle movable longitudinally, comprises: a) a carrier b) a ground engaging drive wheel supported by the carrier and at least one electric battery and an electric battery operated drive supported by the carrier to rotate the drive wheel, c) the carrier coupled to the vehicle for up and down pivoted movement about a generally lateral axis in close association with the vehicle rear wheel, d) the battery or batteries and at least part of the drive being located vertically above the drive wheel so that the weight of the carrier, the battery or batteries, and at least part of the drive bears downwardly on the drive wheel to urge the wheel into ground engagement.

Abstract: An ice shanty mover includes a frame on which a motor and traction wheel are mounted. A series of chains and gears connect the traction wheel to the motor such that the traction wheel rotates when the motor is activated. A control cable extends forwardly from the motor to allow a user to control the speed of the motor while walking in front of the ice shanty. A front plate on the ice shanty mover engages a skirt on the ice shanty and pushes against the skirt causing the shanty to move. Steering is accomplished by a tow rope attached to either the shanty or the shanty mover.

Abstract: A computerizable robotic automated bogie is provided including a drive motor and a main drive shaft extending downwardly from the drive motor. A rotatable plate is rotatably coupled to a bottom of a platform and further rotatable with respect to the main drive shaft. A gear mechanism is operatively coupled to the drive shaft. At least one wheel has an axis coupled with the gear mechanism thereby effecting rotation of the at least one wheel about a horizontal axis upon the actuation of the drive motor. The axis about which the at least one wheel rotates is fixed with respect to the rotatable plate. Further included is a rotating mechanism operatively engaged with the rotatable plate for selectively rotating the horizontal axis about which the at least one wheel resides.

Abstract: Apparatus for converting a conventional battery-powered golf bag cart to a vehicle for transporting a golfer. Such apparatus includes a frame engageable to the chassis of the cart. Such frame is configured to support a seat for supporting a golfer. Wheels are rotatably engaged to opposed ends of an axle fixed to the frame. A bracket is fixed to the frame for securing it to the chassis and for reinforcing the interconnections of the chassis to a frontal nose wheel mount and to a rear control handle.

Abstract: Disclosed is a power assist anti-tip wheel system for invalid carriage including at least one connecting support, at least one assist anti-tip wheel, and at least one power driving means. The connecting support is fixedly or detachably connected at one end to a front or a rear side of the invalid carriage. The anti-tip wheel is associated with the connecting support so that it is located in front of or behind the invalid carriage. The power driving means is also associated with the connecting support to drive the anti-tip wheel to rotate when the invalid carriage travels onto a slope or passes a recess or a bulge on a road surface and two drive wheels thereof become suspended and idling. The power driving means can be automatically actuated via a sensing circuit or be manually actuated via a push button.

Abstract: A detachable motorized wheel assembly for a golf cart has a support framework removably attachable to the rear section of a golf cart of the type having oppositely disposed and spaced apart wheels. The assembly includes a motor driven wheel positioned between and rearward of the spaced apart wheels of the golf cart. The assembly further includes a golf bag support device having a number of support loops. Each loop having a first section outwardly disposed from the top of the support framework. Each loop further having a second section disposed upwardly from the first section to form an obtuse angle between the first and second sections.

Abstract: A motorized in-line blade roller skate having a longitudinally extending chassis plate with rear and front ends and several in-line blade roller members. A motor provides the necessary rotational movement that is transmitted through a cable to a gear assembly which in turn transmits it to a driving roller member. A bracket member is pivotally mounted to the rear end of the chassis plate and the driving roller member is rotatably mounted to the bracket. A clutch cable brings the driving roller member in contact with the rearmost roller member and thus transmitting the rotational movement to the latter. A second pivotally mounted bracket is provided for rotatably supporting the rear roller and is rigidly kept in place with, an adjustable linkage member. Adjusting this linkage member offset the wear and tear of the rear or driven roller and also permits a user to enhance gripping, preventing slip action, by bringing the rear roller member slightly below the plane defined by the other roller members.

Abstract: A detachable propulsive device for a wheelchair includes a longitudinal skeleton frame, a driving unit attached to the front of the skeleton frame, a handle for steering the propulsive device, dimensions adjusting unit, and auxiliary wheels. The dimensions adjusting unit carries four retaining clips and allows to adjust distances between these clips lengthwise and widthwise, so that the clips are capable of engaging and holding side members of the bottom frame of the wheelchair of any desired length and width. The length adjusting mechanism of the dimensions adjusting unit includes a system of telescopically movable hollow tubes with U-shaped cross sliding rails secured to them, while the width adjusting mechanism includes sliding arms carrying the retaining clips on their outer ends and sliding longitudinally along the U-shaped cross sliding rails in the lateral direction. The auxiliary wheels at the rear of the propulsive device are lifted from the ground once the device has been attached to the wheelchair.

Abstract: An electrical driving system which may be conveniently installed on or removed from a wheelchair is provided. The electrical driving system comprises a coupling assembly which houses a storage battery and a control circuit board. The system also comprises a holder assembly which houses motors and planetary gears which drive a pair of drive wheels. The electrical driving system is installed on the wheelchair by coupling together an upper connector and a lower connector of the coupling assembly about each of the tipping levers of the wheelchair. The coupling assembly includes a plurality of coupling pins, finger elements, and set pins, the appropriate coupling of which enables each finger element to be pivotally displaced to selectively press or release an upper connector to correspondingly grip or release the given tipping lever captured between that upper connector and a lower connector.

Abstract: In an automobile having a primary engine fueled by a primary source of fossil fuel energy, the primary engine and an auxiliary motor device are drivably connected to one or more ground engagement wheels of the automobile. A solar energy collecting device is mounted on the automobile for exposure to solar energy, and has an energy supply mechanism that routes energy collected by the solar energy collecting device to the auxiliary motor device. A control mechanism operates so that either energy is routed from the energy supply device to the auxiliary motor device, or energy is prevented from being routed to the auxiliary motor device.

Abstract: A modular robot body assembly includes a generally rhombicuboctahedron geometric shape segmented into five modules symmetrically located around a horizontal center shaft system which allows the robot body, front legs, and back legs to rotate about a horizontal center axis with respect to one another. Four quarter-shell modules are arranged at 90 degree angles from each other about the common horizontal center axis and joined at edges to each other and at their inner facing edges to a core module containing a shaft rotatably mounted along the horizontal center axis. Each module may contain functionally different parts that can be mixed and matched with other modules to suit particular applications. A flexible coil conduit is connected between the shaft and the core module providing an electrical linkage form the robot body to the legs while maintaining rotational capability of the legs with respect to the body.

Abstract: Nearly everyone who drives an automobile has experienced engine failure or other problems with the transmission, cooler lines, drive shaft, differential or electrical components or has run out of gas at one time or another. The disabled car is immobilized until the driver is fortunate enough to obtain outside help to tow or push the car to a place for repair. The present invention comprises an accessory which can be carried in the vehicle trunk and which, when connected to the rear of the vehicle, will push the vehicle to safety. It comprises a motorized wheeled unit controllable from the disabled vehicle which fastens to the rear bumper or to a trailer hitch (if the vehicle has one) or to a temporary, removable type trailer hitch of the disabled vehicle and pushes it while the driver steers in a normal manner.

Abstract: A power assist device for a wheelchair comprising a body, a drive wheel connected to the body and being movable between a raised position and a lowered surface engaging position, attachments for securing the body to the frame, a first motor for driving said drive wheel at least when the drive wheel is in the lowered surface engaging position, a second motor connected to the drive wheel for raising and lowering said drive wheel, a biaser, for biasing the drive wheel into surface engaging driving contact, a manually initiated electronic controller for controlling the power assist device, and a source of electrical power.

Abstract: The bicycle power pack consists of a frame mounting a motor and transmission mechanism, ground engaging wheels carried by an axle journaled to the frame and a hitch assembly extending forwardly from the frame and attachable to the bicycle rear axle. In order to prevent weight transfer from the power pack to the rear axle of the bicycle, the center of gravity of the power pack is located directly above the axle, thus improving the stability and maneuverability of the bicycle and power pack combination.

Abstract: A vehicle for use in ski-area snow grooming operations and also for use in summer maintenance operations which is provided with a four-wheel hydrostatic-drive transmission and four-wheel steering. The vehicle has a frame/body/engine assembly which provides a centrally located low center of gravity and high operator visibility. The vehicle has a relatively broad wheel base which is further broadened by mounting of at least four snap-on wheels. A wrap-around cleat assembly is mountable on each of four multiple-wheel sets for increasing traction in snow. An engine-driven snow processing apparatus operable in both a snow blading state and a snow compacting state is provided.

Abstract: A safety control for a baby's walker comprising a typical baby's walker having a horizontally extending peripheral frame supported on four peripherally spaced apart legs having rollers or wheels and a seat secured to and extending downwardly from the peripheral frame for the baby to sit in, the seat having two apertures for the baby's legs to extend through and to reach the floor when the baby stands and begins to walk, moving the walker as he goes and using the walker as a support and restraint to keep from falling, the walker in accordance with this invention having a motor connected to drive one or more wheels on command to move the walker and the baby in it away from a location of danger such as a electrical outlet, the head of a stairs, an open window, a hot stove, a whirling fan and the like.