Chairs and seats – Armrest – Adjustable to multiple use positions relative to bottom or back
Reexamination Certificate
2005-08-02
2005-08-02
White, Rodney B. (Department: 3636)
Chairs and seats
Armrest
Adjustable to multiple use positions relative to bottom or back
C297S411360, C297S411370, C297S411380, C297S411390, C248S118100, C248S118300, C248S118500
Reexamination Certificate
active
06923505
ABSTRACT:
An ergonomic arm support system maintains a neutral position for the forearm. A mechanical support structure attached to a chair or other mounting structure supports the arms of a sitting or standing person. The system includes moving elements and tensioning elements to provide a dynamic balancing force against the forearms. The support structure is not fixed or locked in a rigid position, but is an active dynamic system that is maintained in equipoise by the continuous operation of the opposing forces. The support structure includes an armrest connected to a flexible linkage or articulated or pivoting assembly, which includes a tensioning element such as a spring. The pivoting assembly moves up and down, with the tensioning element providing the upward force that balances the downward force of the arm.
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Chung Jeffrey Y
Dellinges Steven
Lafever Robin E
Siminovitch Michael J
Milner Joseph R.
Sartorio Henry P.
The Regents of the University of California
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