Chairs and seats – Movable bottom – Tiltable
Patent
1996-12-10
1998-06-23
Nelson, Jr., Milton
Chairs and seats
Movable bottom
Tiltable
29718809, A47C 102
Patent
active
057694923
ABSTRACT:
An apparatus for supporting a user in a seated position is disclosed. The apparatus includes a seat for supporting the user in a seated position, and a base. A connection mechanism couples the seat to the base in such a way as to allow undulatory movement of the seat relative to the base in response to motions of the user's spine to thereby reduce the total spinal movement of the user's spine.
REFERENCES:
patent: 975827 (1910-11-01), Busch
patent: 2799323 (1957-07-01), Berg
patent: 4552404 (1985-11-01), Congleton
patent: 4846076 (1989-07-01), Menges, Sr. et al.
patent: 5024485 (1991-06-01), Berg et al.
patent: 5577803 (1996-11-01), Guilbaud
patent: 5588704 (1996-12-01), Harza
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