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WHEELCHAIR SAFETY BRAKE ASSEMBLY

This invention relates to gravity reactive braking systems. According to the invention there is provided a brake system to control speed in a forward direction for descending inclined surfaces and a brake system for controlling rollback when ascending an inclined surface. The speed pacer braking assembly includes a downhill activator for selectively engaging a disc brake system when a predetermined inclined is reach. The anti-rollback assembly comprises a pair of graded brake cam structures operatively disposed adjacent wheels wherein the natural pull of gravity and the configuration of the cams operate to allow passage of wheels in both directions when on flat surfaces and in only a single direction when on an incline. When on an incline, gravity operates to dispose cams relative to the wheels such that rotation of wheels in one direction is hindered by a thickening of cam body caused by rotation of cam about its axis. Both systems include adjustment means for setting the incline angle at which brake assemblies will operate to hinder wheel rotation in the undesired direction.


Docket:TAMC 2003-71

Publication/Issued No.:7,316,298

Publication/Issue Date:2008-02-08

Categories: Device

More Detail:Visit USPTO.GOVExternal link

Lab:RIID

Inventor(s):YEAGER, A.


For Licensing Opportunities, please contact the ORTA at USArmy.Detrick.MEDCOM-USAMRMC.List.ORTA@mail.mil
 

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