Chair for the lower back
OwnerDaniel N. Fosterinventor
Life of this patent
Estimating the term…
Abstract
A chair is specifically designed to be usable as an ordinary office chair. The chair employs both anterior and posterior pelvic restraints to prevent rotation of the pelvic region. Several adjustment devices permit proper movement up and down and back and forward of the arm rests so that they may be used as anterior pelvic restraints during exercise.
Claims20
A chair for general use and adapted for movement of the lower back of a user comprising a base adapted to be disposed firmly on a floor and having a seat disposed spaced above a floor, selectively operable first adjustment means for mounting said seat to said base for positioning thereof, said seat being adjustable in height and rotatable through 360 degrees by selective operation of said first adjustment means, a pair of spaced apart arm rests, selectively operable second adjustment means for mounting each respective said arm rest to said base for adjustment of the height thereof in response to selective operation of said respective second adjustment means, selectively operable third adjustment means for mounting said respective arm rests for forward or rearward horizontal movement thereof in response to selective operation of said respective third adjustment means.
A chair for general use comprising a base adapted to be disposed on a floor and having a seat disposed spaced above a floor, and a back support means for a supporting a back of a use, selectively operable first adjustment means for mounting said seat to said base for positioning thereof, said seat being adjustable in height and rotatable through 360 degrees by selective operation of said first adjustment means, a pair of spaced apart arm rests, selectively operable second adjustment means for mounting each respective said arm rest to said base for adjustment of the height thereof in response to selective operation of said respective second adjustment means, selectively operable third adjustment means for mounting said respective arm rests for forward and rearward horizontal movement and positioning thereof in response to selective operation of said respective third adjustment means.
Dependencies are inferred from the claim text.