Inventors:
Bobby Slone - Ravenna OH, US
International Classification:
A63B022/14, A63B022/16
Abstract:
The invention (), an adjustable instability apparatus for exercising, balancing, recreation and physical rehabilitation activities, is described comprising an air spring assembly (), a bleeder valve with seal assembly (), a bearing assembly () and flanged button head cap screws (). The air spring assembly () consists of a molded rubber resilient inflatable bladder () that can be selectively inflated or deflated, and is surrounded by a girdle hoop () filled with multiple strands of wire () which are molded into the resilient rubber bladder (). A substantially round, flat and rigid top plate () equipped with multiple threaded blind nuts () is crimped and sealed to the top portion of the bladder (). A substantially round, rigid bottom plate () with the central portion concaved inward having a threaded open nut () with multiple threaded blind nuts () is crimped and sealed to the bottom portion of the bladder ().