Chair for active engagement of user
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United States of America Patent
Stats
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Nov 7, 2023
Grant Date -
Feb 16, 2023
app pub date -
Nov 2, 2022
filing date -
Apr 16, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A lower chair for supporting an upper chair on which a user sits. The lower chair including a base, a swivel mechanism supported by the base and defining a vertical swivel axis, and a four-bar linkage mounted to the swivel mechanism for rotation about the swivel axis. The four-bar linkage includes a coupler link that moves about a coupler curve. The lower chair also includes a column having a lower end affixed to the coupler link for movement of the lower end along the coupler curve. The column defines a column axis and is adapted to support the upper chair.
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Family
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Cited Art Landscape
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