Darren W Mark

US Patent:

20160345741, Dec 1, 2016

Filed:

May 20, 2016

Appl. No.:

15/159880

Inventors:

Darren William Mark - Brattleboro VT, US

International Classification:

A47C 7/56
A47C 7/60
A47C 3/18
A47C 7/40
A47C 7/00

Abstract:

A chair having a contoured seat cushion mounted on top of an exercise ball with four tension-adjustable elastic cords such as bungee cords is provided. The shock absorbing cords may attach to the underside of the seat cushion by looping through spring-eye carabiner type hooks, and may pass through grooved locking tubes with v-channels for adjusting the cord tension. The ball may sit on top of a swivel plate, so that dynamic motion and counterbalancing are attainable for a variety of ergonomically beneficial seating styles.