Patent ID: 7434824
Filing Date: 2008-10-14
Classification: A61G,B60T,B62B

Abstract:
1. An automatically engageable and releasable brake apparatus adaptable to be attached to a wheelchair, said brake apparatus comprising: a connection mechanism adapted to be positioned on a portion of the wheelchair frame; a seat actuation member adapted to be positioned in communication with a seat of the wheelchair, said seat actuation member comprising a first fluid cell having a first volume and including a plurality of fluid chambers in fluid communication with one another; a brake member adapted to contact a ground surface on which the wheelchair is located, said brake member being coupled to said connection mechanism, wherein a volume of fluid in said closed fluid system is less than a total volume of said closed fluid system, and wherein occupational ingress into the wheelchair actuates said seat actuation member to cause fluid flow from said seat actuation member to said brake actuating member, which actuates said brake actuating member and causes said brake member to move from a first position in substantial contact with the ground surface on which the wheelchair is located to a second position spaced a distance above the ground surface.