Matches 51 - 100 out of 103 < 1 2 3 >


Match Document Document Title
5560626 Cart for negotiating escalators  
A cart having a lower frame and wheel means for moving the cart on a surface, includes a surface engaging means extending below the lower frame. When the cart engages an escalator step, the...
5380075 Footed wheel for irrigation apparatus  
A wheel to support a pipe, or a tower carrying a pipe, of an agricultural irrigation system, especially of a rotary type, provides a polygonal metal web with feet pivotally mounted by foot...
5294136 One person furniture or appliance mover  
A portable furniture and appliance mover includes a frame which has a handle on the rearward portion and a lateral load-engaging member on the forward portion. A forward projecting member engages...
5277436 Combination hand truck and stair ramp  
In combination, a hand truck having a unidirectional wheel control ratchet and an adjustable length stair ramp are operable for transporting heavy loads of cargo up flights of stairs. A ratchet...
5273296 Obstacle overcoming vehicle suspension system  
A suspension for propelling a vehicle so as to overcome an obstruction in its desired path of progress. The suspension includes connections between the chassis and body of the vehicle with its...
5253885 Stairway descending patient carriage  
A carriage for rescuing patients is formed by a flat bottom rectangular frame having upstanding side walls, a rear wall, and a forwardly and upwardly inclined front wall. The frame is transversely...
5228709 Wheelchair driving mechanism  
A wheelchair driving mechanism includes a driving disk fastened to either large wheel of a wheelchair by a circular table and a circular casing for moving the wheelchair with the hand, and a...
5026078 Harp caddy  
A harp caddy for transporting a harp of the type having a base including feet projecting laterally outwardly from the base for supporting the harp. The harp caddy having a frame including a...
4951768 Modular articulated vehicle manoevring among obstacles and modular member incorporated in said vehicle  
Modular element of module (M) for an articulated vehicle formed therefrom. The vehicle must be able to travel over various obstacles (corridors, staircases, level changes). The modules (M) are...
4932491 Body steered rover  
A rough terrain vehicle is described which includes auxiliary wheels that can be deployed to avoid overturning the vehicle when turning while traversing a slope, to climb an embankment or the...
4919489 Cog-augmented wheel for obstacle negotiation  
A vehicle for overcoming obstacles includes a wheel having an elastomeric flexible annulus upon which the wheel normally rides. Parallel spaced sprockets receive the annulus and include individual...
4858940 Stairway accessible carry cart with foldaway wheels  
A carry cart having auxiliary wheels on the lower portion of its telescoping arms for redistributing the load of the carry cart when going stairs or the like. The auxiliary wheels are each...
4781391 Harp carrier  
A carrier for transporting a harp whereby the harp may be rolled in a substantially upright position across a supporting surface and, alternatively, whereby a harp may be transported in a...
4747611 Curb ascending and descending wheelchair  
Selectively operable spiral cam wheels are positioned adjacent and rotate on a common axis with the drive wheels and are attachable to the drive wheels for progressively raising the wheelchair in...
4709773 Variable geometry track vehicle  
The vehicle comprises two tracked bodies and one non-tracked body articulated about a common axis. Each tracked body comprises two laterally positioned tracks. The engines are carried by tracked...
4688812 Wheeled arrangement  
A wheeled arrangement, particularly a wheeled vehicle such as a wheelchair, includes two wheels (12,14) mechanically interconnected by a linkage including an inclined pivot (16) such that when...
4674585 Articulated unit vehicle  
An elongated vehicle adapted to be propelled along an engaging surface and capable of climbing over obstacles on the engaging surface. The vehicle has a plurality of wheeled units including front...
4648853 Wheel hub locking mechanism  
A wheel assembly for toy vehicles that includes a spider mounted for rotation inside of a generally cylindrical hollow wheel. The spider carries lugs for extension and retraction through passages...
4639002 Wheeled trolley frame  
A wheeled trolley frame for use on an escalator. The frame has two ends and two pairs of ground engaging wheels (2 and 3) respectively positioned one pair adjacent each frame end and spaced apart...
4609200 Device for aiding in the collection, transport and dumping of refuse  
The device takes the form of a strong-back which is attachable to a garbage can, generally vertically thereof, and has top and bottom handles for hoisting the can to the dumping position used by...
4534433 Material handling vehicle  
An auxiliary wheel is mounted on a lift truck caster wheel assembly to normally be carried above the floor, but to engage the floor to prevent overturning, thereby increasing the lateral stability...
4421189 Stair vehicle  
The vehicle--e.g. a wheelchair--has groups of wheels (10) mounted on a spider (9) for rotation about a central axis to enable the vehicle to ascend or descend stairs or steps. To reduce the risk...
4245847 Wheelchair  
A wheelchair suitable for invalids or geriatric patients has a chair or seat supported on independant forward and rearward castor frames pivotally connected together at a transverse axis to form a...
4222449 Step-climbing wheel chair  
An improved step-climbing wheel chair with integral retractable ramps for ascending or descending a step, curb or the like. The conveyance is provided with a two-speed transmission capable of...
RE28936 Cart with automatic positioning handle and independently positionable wheels  
The disclosure relates to a cart or pick-up truck capable of transporting a load on level ground, hills and inclines and up stairways and the like wherein the operator thereof is capable of...
3869146 OCCUPANT ACTUATED MEANS FOR PROPELLING, STOPPING, DIRECTING, AND CURB HOPPING A WHEELCHAIR  
Self-propulsion subassemblies are respectively secured to large wheel receiving shafts or bearing bolts of wheelchairs and wheelstretchers. An occupant utilizing his arm, shoulder and trunk...
3827718 WHEEL CHAIR  
A wheel chair having a main framework supported by a pair of spaced main wheels rotatably mounted adjacent a rear portion thereof, and by casters carried by a pair of spaced housings mounted...
3724863 CART WITH AUTOMATIC POSITIONING HANDLE AND INDEPENDENTLY POSITIONABLE WHEELS  
The disclosure relates to a cart or pick-up truck capable of transporting a load on level ground, hills and inclines and up stairways and the like wherein the operator thereof is capable of...
3649981 CURB TRAVELLING SWEEPER VEHICLE  
A road sweeper of the three wheel type having forward and rear traveling wheels is adapted for the climbing of curbs or dividers onto raised surfaces by the provision of lifter wheels bodily...
3573877 CURB-CLIMBING ATTACHMENT FOR WHEEL CHAIRS  
Curb-Climbing Structure added to wheel chairs with lifting means to be actuated by the occupant of the chair to raise the rear of the chair to a curb level after the front portion of the chair is...
3499501 STAIR CLIMBING APPARATUS  
3497093 SAFE DELIVERY SYSTEM AND VEHICLE THEREFOR  
3411598 Stairclimbing wheelchair  
3350797 Set of interchangeable utility apparatuses  
3304094 Climbing wheel chair  
3279812 Baby carriage wheel lowering mechanism  
3269478 Stair climbing wheel chair  
3227465 Stair-climbing wheel chair  
3226129 Vehicle and deformable wheel therefor  
3226128 Stair climbing chair  
3179431 Obstacle-climbing wheel chairs  
3169596 Step traversing vehicles  
3104112 Stair climbing wheel chair  
3096852 Wheel mounting means  
3084950 Shock absorbing wheel mounting assembly  
3057319 Rough terrain amphibious vehicle  
3055523 Extension hand truck  
3052323 Lift truck  
3015123 Vacuum cleaner with wheeled undercarriage  
2933322 Hand trucks  

Matches 51 - 100 out of 103 < 1 2 3 >