Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-04-26
2008-10-28
Trieu, Van T. (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S686300, C340S686400
Reexamination Certificate
active
07443311
ABSTRACT:
A chair based interface comprising a lower portion attachable to the base of a two part chair and an upper portion attachable to the shaft of a two part chair. A rocker arm connects the two portions and depresses an internal switch when pressure is placed on the chair. A wireless transmitter and receiver and attached interface can control a computer or other device based on the activation or deactivation of the switch. The device can be integrated into or attached to a chair during manufacturing or attached after market.
REFERENCES:
patent: 5612718 (1997-03-01), Bryan
patent: 5909208 (1999-06-01), Blomdahl
patent: 6870477 (2005-03-01), Gruteser et al.
patent: 6964370 (2005-11-01), Hagale et al.
patent: 6970080 (2005-11-01), Crouch et al.
patent: 7327268 (2008-02-01), Gruteser et al.
Primak Boris
Primak Leonid
Siegel David H.
Trieu Van T.
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