Chair and method for correcting an improper alignment of spinal vertebrae
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Sep 30, 2003
Grant Date -
Mar 21, 2002
app pub date -
Sep 19, 2001
filing date -
Sep 19, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a chair and a method using the chair, which can be not only used easily and comfortably but also utilized in treating an improper alignment of spinal vertebrae. The chair has a seat assembly for seating the user on the seat assembly, the seat assembly being operated by the user in such a manner as that the user can adjust a height of the seat assembly; a backrest assembly for supporting a back of the user, the backrest assembly being operated separately from the seat assembly by the user in such a manner that the user can adjust a height of the backrest assembly; a headrest assembly for resting a head of the user on the headrest assembly, the headrest assembly being assembled with the backrest assembly; and a backrest frame for supporting the backrest assembly and the headrest assembly, the backrest frame being fixed to the seat assembly, the backrest assembly moving along the backrest frame when the height of the backrest assembly is adjusted.
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