Patent ID: 8540314

Claim:
An article of manufacture comprising: a seat; a first support base; an upright elongated support element having a first point and a second point, said first point connecting to said seat and said second point connecting to said first support base; a resilient component, said resilient component being disposed beneath said first support base, and said resilient component being capable of providing cushioning to said first support base; a second support base disposed beneath the resilient component; and at least two tension elements, each said tension element linking said first support base and said second support base, each said tension element being capable of independently stretching and contracting, wherein the resilient component deforms to allow the upright elongated support element and the seat to tilt relative to vertical axis, the tension elements prevents shifting and sliding of the first support base from the resilient component, and outer edges of the first support base and second support base function to stop further tilting of the upright elongated support element and the seat.