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7222700 |
A brake mechanism having a motor output shaft outputting a driving torque in a power-in and a power-out direction. A camming device operably couples the output shaft to a drive shaft for fixed rotation. A one-way clutch operably couples ...
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7066425 |
The invention a device with retractable anti-roll means designed in particular for a wire dispensing reel ( 10 ) having a cylindrical body ( 11 ) and end flanges ( 12, 13 ). The end flange ( 12 ) comprises a circular peripheral rolling e...
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6874794 |
A braking system preferably for an in-line skate includes a brake pad mounted to a forward end of a skate frame and an elevated front wheel attached to the skate frame by two pivot arms. The pivot arms are biased forward which is in a cl...
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5947491 |
Hand truck or dolly apparatus includes a main frame and a pair of main tires and brake elements secured to the main frame, including a pair of plates movable against the tires. The brake plates are actuable either by a foot operation or ...
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5845746 |
An automatic braking system for wheelchairs which prevents rearward, downhill motion of wheelchairs while having no effect on horizontal or uphill motion. The braking system is made up of circular ratcheted plates which are attached to t...
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5779251 |
Hand truck or dolly apparatus includes a main frame and a pair of main tires and brake elements secured to the main frame, including a pair of plates movable against the tires. The brake plates are actuable either by a foot operation or ...
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5713436 |
A motorcycle rear wheel brake functions to allow the driver to lock the rear wheel on an upward incline. This prevents the motorcycle from rolling backwards while freeing the driver's hands and feet. A simple hinge arrangement wedges the...
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5625240 |
Device for positioning a rotating body movable about an axis in relation to a stator body including a magnetic bearing and a locking/releasing device. The locking/releasing device embodies a plurality of clamps with pads adapted to radia...
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5388672 |
A device (10) allows forward (clockwise) rotation of a shaft (12) but prevents reverse rotation unless disengaged. A loop (20) is attached at one end to a slide show (16), passes round a drum (14) on the shaft (12), around a first pin (2...
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5277436 |
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 wheel and pawl assembly is attached to the ...
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5211414 |
A lightweight, optionally foldable wheelchair which allows the user maximum control over both travel direction and seat position. The wheelchair is driven manually by an arrangement of drive gears, which are actuated by a drive gear sele...
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5029674 |
A manually operable hand braking device for such as but not necessarily confined to, a wheel (23) of a wheel chair. The device including a mounting member fixed adjacent the wheel periphery (23a), and a body part (5) mounted for partial ...
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4925252 |
An automobile brake system includes a master cylinder, a wheel cylinder and a solenoid actuated valve between the master cylinder and the wheel cylinder. The solenoid actuated valve is actuatable for maintaining high fluid pressure in th...
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4867282 |
The invention relates to an anti-roll back device of particular applicability to motor vehicles but which can be applied to any rotating member where in ordinary useage the rotatable member is required to be rotated in one direction and ...
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4856959 |
A carrier for a cylindrical container possesses function of raising the container from a fallen position to an upright position. The carrier comprises a movable dolly, a lift drive assembly mounted on the dolly, a lift frame provided on ...
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4638890 |
The brakes of a bicycle are actuated in response to rotation of the pedal crank in a reverse direction. The brake actuating mechanism includes an actuating member which is connected to the pedal crank by a freewheel and a slip coupling. ...
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4461365 |
A device for propelling a bicycle or the like comprising in combination, a frame having wheels and an overlying cargo carrier instrumentality, a power pack disposed thereon adapted to drive said wheels, hitching instrumentalities connect...
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4410195 |
By providing a bicycle with a one-way brake coupled between the front wheel and the frame of the bicycle, the one-way brake being configured to permit only forward rotation of the front wheel, dangerous reverse rotation of the front whee...
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3923127 |
A braking system for vehicles to prevent rearward movement of the vehicles without action by the driver when the vehicle is not being driven rearwardly, particularly useful on vehicles having loads applied to them in the rearward directi...
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3904215 |
In a preferred embodiment of the invention there is provided a walking roller skate which may be used for the combination of walking and skating as a result of wheel-locks and brakes and unidirectional roll and slip-clutch combinations a...
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3620333 |
At least one supporting wheel of a vehicular excavating machine is blocked against rotation in one direction when a spring-loaded pawl pivoted on the machine frame engages a ratchet on the wheel. The pawl is of rectangular shape symmetri...
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2841250 |
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2738199 |
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2727603 |
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2668609 |
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2610468 |
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2609901 |
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2603322 |
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2589788 |
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2532670 |
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2527118 |
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2518642 |
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2507306 |
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2506986 |
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2494039 |
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2438154 |
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2379829 |
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2351685 |
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2345203 |
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2299765 |
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2296619 |
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2276191 |
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2272028 |
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2259684 |
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2255582 |
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2251956 |
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2246996 |
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2239182 |
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2222326 |
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2221190 |
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