Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Wheelchair dynamic braking system










Image Number 4 for United States Patent #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 the axles of the driving wheels of the wheelchair and L-shaped members slightly in front of and beneath the ratcheted. The L-shaped members are rotatable about axles located in their angles. The long leg of an L-shaped member is directed downwardly by gravity and maintains the short leg in a substantially horizontal position. The short leg forms a pawl which engages the ratchets of the plate when the wheels start to roll backwards when the wheelchair is directed upwardly, thus automatically stopping the wheelchair.








 
 
  Recently Added Patents
Base station apparatus and method for use in mobile communication system
Electric train drive control device
Image processing system and method
End to end email monitor
Lead frame array package with flip chip die attach
(4940
Method and apparatus for transcoding and transrating in distributed video systems
  Randomly Featured Patents
Apparatus for mounting driver-side airbag module in vehicle
Devices and methods for identifying and monitoring changes of a suspect area of a patient
Valved suction mechanism for refrigerant compressor
Composition comprising an oxidizing and complexing compound
Toy motorcycle
Methods and apparatus for modifying gel adhesion strength
Novelty cap having fan-like structure
Method of forming an in-rush limiter and structure therefor
Food slicer
Portable glideboard for medical purposes