Patent ID: 7517018
Filing Date: 2009-04-14
Classification: B60N,Y10S

Abstract:
1. A base for a seat comprising: a base structure comprising a first hollow upwardly open socket having a first socket inner surface; an intermediate structure comprising a second hollow upwardly open socket coaxially fitting within the first socket and having a second socket inner surface and a second socket outer surface; a seat support structure on which a bottom of the seat is fixed, the seat support structure comprising a hollow downwardly open cup structure coaxially fitting within the second socket; a height adjustment balloon having height adjustment balloon sidewalls resting against the first socket inner surface and the second socket outer surface for telescopic displacement of the intermediate structure with respect to the base structure; a suspension balloon having suspension balloon sidewalls resting against the second socket inner surface and the cup structure for telescopic displacement of the cup structure with respect to the second socket; and pressurization means for pressurizing the height adjustment balloon and the suspension balloon, wherein the height adjustment balloon and the suspension balloon are selectively and independently pressurized to provide a resilient adjustment of a height of the seat between a lower position and an upper position.