Patent ID: 7434882

Claim:
A combination ergonomic chair and seat pivoting mechanism for assisting a user to transfer their body mass between sitting and standing positions, said combination chair and seat pivoting mechanism comprising: a chair having a rigid frame provided with a seat section pivotally connected to a front end of said frame; a plurality of pulleys selectively connected to spaced portions of said frame wherein said pulleys are registered along a single plane; a weight member operably coupled to said pulleys and positioned subjacent to said seat section; a cable having opposed ends tethered directly to said frame and said weight member respectively; and a pneumatic piston having a stationary portion directly coupled to said frame and further having a linear piston directly coupled to said seat section, wherein said pneumatic piston and said weight member cooperate in tandem for resisting an operating force directed on said seat section during sitting and standing procedures such that the user weight is gradually transferred between equilibrium and non-equilibrium positions respectively.