Seating unit including novel back construction

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6460928
SERIAL NO

09921059

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A back construction for a seating unit includes a back frame, and a compliant back having a forwardly-protruding lumbar support section that is characteristically flexible and bendable, such that the compliant back can be flexed to a plurality of different convex shapes. Top and bottom connections pivotally connect the compliant back to the back frame. An adjustable force-generating mechanism is operably attached to at least one of the compliant back and the back frame. The force-generating mechanism is constructed to provide an adjustable biasing force that adjustably biases the lumbar support section forwardly for optimal lumbar support for a seated user's back, but the force-generating mechanism characteristically provides the biasing force without forcing a shape change in the compliant back. A vertically adjustable lumbar support is slidably attached to the back shell.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
STEELCASE INC901 44TH STREET S E GRAND RAPIDS MI 49501

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dammermann, Arnold B Winona, MN 34 1922
DeKraker, Larry Holland, MI 35 2930
Ekdahl, Kevin A Chicago, IL 12 821
Heidmann, Kurt R Grand Rapids, MI 175 5640
Klaasen, II Gardner J Ada, MI 11 864
Knoblock, Glenn A late of Fort Collins, CO 41 3402
Perkins, James A Alto, MI 10 831
Peterson, Gordon J Rockford, MI 116 4071
Punches, Edward H Wyoming, MI 9 827
Roossien, Charles P Wyoming, MI 25 1921
Teppo, David S East Grand Rapids, MI 34 2170
Yancharas, Michael J Comstock Park, MI 8 816

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