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4199036 |
Wheel chair
A collapsible portable manual wheel chair is converted to a collapsible electric wheel chair. The two large rear wheels of the collapsible manual wheel chair are removed, and an electromechanical...
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4194584 |
Variable terrain vehicle
A vehicle undercarriage includes a pair of track laying assemblies each provided with at least two pairs of wheels having an endless belt tread wrapped thereabout. Variation of the vehicle...
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4192395 |
Amusement vehicle
A vehicle, especially an amusement vehicle, in which a frame having a seat adapted for seating two occupants is located within the radial confines of a pair of relatively large coaxial spaced...
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4168468 |
Radio motor control system
A radio control system having a radio-controlled model toy on which a d-c power supply, a receiver and two electric motors are mounted, and a transmitter for maneuvering the radio-controlled model...
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4163567 |
Vehicle, especially amusement vehicle
A vehicle, especially an amusement vehicle, in which a frame having seating means for receiving at least one occupant is located within the radial confines of a pair of relatively large coaxial...
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4158196 |
Man-machine interface system
The system provides a direct electrical interface between the electrical activity that may be self-induced in the human nervous system and the electrical activity in devices such as computers or...
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4157123 |
Wheelchair electrical control circuit
The normally provided manually operable switch lever on an electrically drive wheelchair incorporates pairs of switch arms so that additional circuitry can be provided for interconnection with the...
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4140192 |
Wheelchairs
An improved wheelchair having electrically powered drive motors in which a battery support tray is secured within an opening in a side frame of the wheelchair. Two batteries can be supported, one...
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4128137 |
Peripatetic vehicles
A peripatetic vehicle, the suspension of which includes a bogie carrying two main wheels, one to either side of the vehicle, and caster wheels. The stability of the suspension is completed by...
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4125169 |
Wheelchairs
A power assisted wheelchair has a pair of larger ground wheels with handwheels mounted thereon and a pair of smaller castor wheels carrying motors drivably coupled therewith. The handwheels are...
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4119163 |
Curb climbing wheel chair
A self-propelled wheel-chair capable of climbing up or down a curb is disclosed. The wheel-chair is able to elevate an occupant higher than existing types of wheel-chairs practically to the height...
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4119164 |
Stand-aid invalid wheelchair
A wheelchair is designed to enable an invalid to stand, sit or choose at l any intermediate position to perform useful work, and to move about in any of said positions. The wheelchair helps to...
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4114711 |
Floor treating machines
A floor treating machine, particularly for scrubbing or polishing a floor is provided with a recording and replay device for the power supply to the traction motors so that it may be programmed to...
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4110668 |
Thyristor pulse controller for plural loads
A pulse controller for controlling the current supply to a plurality of d.c. loads through a respective main thyristor for each load is provided with digital circuitry operable to maintain the...
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4106583 |
Self-powered folding golf cart
A power-assisted manually operated golf bag carrying cart is disclosed. The cart features a foldable tricycle support frame having parallel drive wheels, which can be maintained in parallel over a...
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4102292 |
Amphibious vehicle
An amphibious vehicle for travel in water or on land with transversely spaced power driven buoyant drums fore and aft of the vehicle and intermediate buoyant idler drums likewise transversely...
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4094361 |
Permissible mine car adapter assembly
A fire safety transmission apparatus comprising an explosion-proof container, an adapter plate secured to the container, a cylindrical sleeve mounted to the adapter plate defining a central bore,...
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4078627 |
Wheelchair controls
A control unit for a motorized wheelchair for an invalid the control unit having a part engageable with the occupants chin and being movable in a first direction in order to cause movement of the...
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4078630 |
Steering control system for remote controlled transportation units
An improved steering control system for a remote controlled transport unit for moving said unit along a pair of guide lines fixed in space comprises two drive wheel means, one of the two drive...
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4077483 |
Invalid vehicle
An electrically powered vehicle for an invalid has a track drive with pivoted idlers accommodating travel over obstacles and through uneven terrain and an electrically adjustable seat with an open...
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4067409 |
Wheel chair arrangement
A wheel chair with a retractable back rest, and a seat which may be uncovered to expose an opening that enables a patient in the wheel chair to use a toilet while remaining seated in the wheel...
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4063607 |
Motorized mechanical horse
A vehicle in the shape of a saddled and bridled horse which teaches the fundamentals of horsemanship by responding to the reins in the manner in which a real horse would.
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4059786 |
Wheelchair control circuit
A wheel chair motor control circuit for a wheel chair having two independently controllable motor-driven wheels. The user has a "joystick" control operable from a datum position to move the wipers...
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4051416 |
Incremental digital control circuit
An incremental digital control system to effect incremental adjustments to an operating system. The control system is responsive to selective relationships between digital signals representative of...
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4050533 |
Powered wheel chair
Disclosed is a powered wheel chair with individual motors driving each of two separate drive wheels. The motors are controlled by the amount of torque applied to the handrim of the driving wheel....
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4037676 |
Powered invalid-chairs
A wheelchair for an invalid has two large ground wheels and two castor wheels, each ground wheel being driven by a small electric motor through a drive arrangement in which a driving pulley swings...
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4008778 |
Self powered jack carriage for moving disabled vehicles
A self powered carriage which receives a conventional hydraulic floor jack to enable a disabled and immobile automobile to be moved and selectively manuvered. The carriage receives a conventional...
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3970160 |
Control means for electrically powered transportation means
A steering control for an electrically powered vehicle having a pair of traction wheels on each side of the vehicle's frame, each of said wheels being driven by a synchronous type motor. The rotor...
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3965402 |
Headrest proportional control for motorized wheelchair
A head controlled mechanism for the proportional control of a driven devi A mechanism is provided whereby a control signal is generated proportional to the movement of the head of an operator to...
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3955639 |
Wheel chairs
A wheel chair having electric driving means arranged to drive the rear wheels of the chair, each rear wheel and its associated electric driving means is supported by a wheel plate connected to the...
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3952822 |
Electrically powered wheel-chair for indoor and outdoor use
An electrically powered wheel-chair for indoor and outdoor use comprising a pair of rear main wheels, which are non-pivotably connected with the frame-work of the chair, at least one of said wheels...
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3945449 |
Wheeled attachment for a chair
A generally rectangularly shaped support frame provided with ground-engaging wheels upon which almost any type and size of conventional chair may be readily mounted so as to provide mobile means...
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3942598 |
Non-hostage vehicle
A security vehicle adapted to prevent unauthorized entry thereinto comprising a base with an electrically conductive frame, an insulated platform on the frame and steerable propelling means for...
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3934181 |
Solid state light responsive control system
The control system includes a plurality of light responsive devices and a mask structure having a part which is movable with respect to the devices to control the transmission of light thereto. The...
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3930548 |
Motorized scaffold attachment
A small portable motorized attachment for propelling portable scaffolds from place to place is provided comprising a pair of electrically operated propulsion units adapted to detachably replace the...
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3924701 |
Two-speed, self-propelled dolly for moving and elevating a mobile home or other load
A two-speed, self-propelled dolly intended for moving and elevating a load such as, for example, a mobile home. A generally rectangular frame is supported by a pair of endless belt tracks mounted...
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3905436 |
Adjustable wheelchair
An adjustable wheelchair includes A. a carriage including support wheels, B. a seat and a support frame therefor, C. a motor driven elevator and guides for supporting the seat and frame for...
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3901337 |
Wheel chairs
In a wheel chair, electric driving means pivotally supported for movement between an operative driving position in which a wheel pinion and driven pinion are coupled, and an inoperative position in...
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3896891 |
MODULAR MOTORIZED WHEEL CHAIR
The specification discloses a motorized wheelchair which can be quickly and easily disassembled into separate lightweight components. The separate components can be conveniently stacked to minimize...
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3893529 |
Wheelchair drive package
A drive assembly package to be connected to a wheelchair, on which there are supports, comprises; A. a horizontal mounting bar of a length to be removably received by the supports, B. drive motors...
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3893530 |
Floor treating machines
A floor treating machine comprising a pair of driving wheels with independent speed control, a pair of independently movable manually operable control members mounted side-by-side on the machine,...
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3892282 |
Random motion suction cleaner
A self-propelled device adapted to move along the bottom of swimming pools or other water tanks in a random pattern to clean the surface thereof. The cleaner has low-voltage motors for driving,...
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3874468 |
Electric controls for hydrostatic transmissions
Electric controls for a vehicle having two drive mechanisms operated in the same direction and speed for straight forward movement of the vehicle and for straight rearward movement thereof and...
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3870935 |
VEHICLE DRIVE WITH TWO ELECTRIC MOTORS
An electric-powered vehicle, e.g. of the fork-lift, plant-utility or other type in which a pair of electric motors are driven by power derived from a rechargeable battery, has two motors for...
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3866102 |
Method and system of servo control for speed control for vehicles
The invention makes it possible (1) to run a vehicle such as automobile at a fixed speed, (2) to regulate running vehicle speed so that as soon as it exceeds a set vehicle speed it is automatically...
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3856104 |
SEQUENTIAL CONTROL CIRCUIT FOR A REMOTE-CONTROLLED VEHICLE
A remote-controlled motor-driven vehicle responsive to a control signal transmitted by a portable transmitter carried by a moving individual for transporting a load at a predetermined distance...
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3826324 |
TRAILER MOVER
A powered mover is disclosed herein for positioning a wheeled trailer or the like in a forward, rearward or pivotal direction which includes a drive drum associated with each wheel that is...
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3814199 |
MOTOR CONTROL APPARATUS ADAPTED FOR USE WITH A MOTORIZED VEHICLE
Motor control system for controlling both direction and speed of a DC motor. The system is particularly applicable for controlling direction and speed of a pair of DC reversible motors which...
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3812929 |
SELF-PROPELLED GOLF CART
A self-propelled, battery powered vehicle adapted to carry golf clubs and the like and including means to automatically follow a golfer carrying a small transmitter as he walks about a golf course....
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3807520 |
MOTORIZED WHEELCHAIR
A motorized wheelchair comprising a pair of removable armrests and a backrest that will pivot forwardly from an upright position into one in which it flattens against the seat to overlie the same...
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