The present invention relates to a wheelchair suspension that includes a pivoting assembly. The pivoting assembly includes at least two linkages. The pivoting assembly is structured so that the drive assists the wheelchair in traversing obstacles.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 10/762,977, filed Jan. 22, 2004, now U.S. Pat. No. 7,055,634 and titled "Wheelchair Suspension", which is a continuation of U.S. patent application Ser. No. 09/974,348, filed Oct. 10, 2001, now U.S. Pat. No. 7,040,429 and titled "Wheelchair Suspension" the diclosures of which are both fully incorporated by reference herein in their entirety.