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:
Feb. 26, 2002
Filed:
Oct. 20, 2000
Glenn A. Knoblock, late of Grand Rapids, MI (US);
Arnold B. Dammermann, Winona, MN (US);
Larry DeKraker, Holland, MI (US);
Kevin A. Ekdahl, Chicago, IL (US);
Kurt R. Heidmann, Grand Rapids, MI (US);
Gardner J. Klaasen, II, Ada, MI (US);
James A. Perkins, Alto, MI (US);
Gordon J. Peterson, Rockford, MI (US);
Edward H. Punches, Wyoming, MI (US);
Charles P. Roossien, Wyoming, MI (US);
David S. Teppo, East Grand Rapids, MI (US);
Michael J. Yancharas, Comstock Park, MI (US);
Steelcase Development Corporation, Caledonia, MI (US);
Abstract
A seating unit is provided having a base assembly, a back frame pivoted to the base assembly for movement between upright and reclined positions, and a seat slidably supported on the base assembly and pivoted to the back frame so that the seat moves forwardly and its rear moves forwardly and downwardly with the back frame upon recline. A flexible back is connected to the back frame at top and bottom locations and is provided with lumbar adjustment for improved lumbar force/support and shape. A seat is provided with seat depth adjustment and with active and passive thigh flex support. A novel energy mechanism is provided that includes a moment arm shift adjuster for adjusting the spring tension on the back frame. The moment arm shift adjuster is readily adjustable and includes an overtorque device to prevent damage to components of the energy mechanism.