The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2010
Filed:
Sep. 15, 2008
Glenn A. Knoblock, Fort Collins, CO (US);
Daryl Knoblock, Legal Representative, Fort Collins, CO (US);
Arnold B. Dammermann, Winona, MN (US);
Larry Dekraker, Holland, MI (US);
Kurt R. Heidmann, Grand Rapids, MI (US);
Gordon J. Peterson, Rockford, MI (US);
Charles P. Roossien, Wyoming, MI (US);
David S. Teppo, East Grand Rapids, MI (US);
Glenn A. Knoblock, Fort Collins, CO (US);
Daryl Knoblock, legal representative, Fort Collins, CO (US);
Arnold B. Dammermann, Winona, MN (US);
Larry DeKraker, Holland, MI (US);
Kurt R. Heidmann, Grand Rapids, MI (US);
Gordon J. Peterson, Rockford, MI (US);
Charles P. Roossien, Wyoming, MI (US);
David S. Teppo, East Grand Rapids, MI (US);
Steelcase Inc., Grand Rapids, MI (US);
Abstract
A back support includes a base, a seat, and a back frame pivoted to the base. The seating unit has a flexible back (i.e., back shell) supported on the back frame and having stiff upper and lower sections connected by a forwardly protruding flexible lumbar section for providing lumbar support to a seated user. A spring mechanism is connected to the back frame and to a center lower edge of the flexible back. The spring mechanism biases the flexible back to bias the lumbar toward a forwardly protruding shape to provide optimal lumbar support when in the upright position and also during recline of the seated user.