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. 12, 2015
Filed:
Sep. 17, 2013
Steelcase Inc., Grand Rapids, MI (US);
Robert J. Battey, Middleville, MI (US);
Richard N. Roslund, Jr., Jenison, MI (US);
Gary Lee Karsten, Wyoming, MI (US);
Kurt R. Heidmann, Grand Rapids, MI (US);
Nathan McCaughan, Grand Haven, MI (US);
Pradeep Mydur, Grand Rapids, MI (US);
Russell T. Holdredge, Alto, MI (US);
Mark Vander Veen, Hudsonville, MI (US);
Todd D. Krupiczewicz, Alto, MI (US);
Nathan R. Brock, Alto, MI (US);
Jeffrey A. Hall, Grand Rapids, MI (US);
Gordon J. Peterson, Rockford, MI (US);
Todd T. Andres, Sparta, MI (US);
Steelcasel Inc., Grand Rapids, MI (US);
Abstract
A chair assembly includes a base structure, a seat support structure movably coupled to the base structure, an upwardly-extending back support structure movably coupled to the base structure, wherein the back support structure is adapted to move between an upright and reclined positions, wherein the back support structure is operably coupled to the seat support structure, a flexible shell structure defining a forwardly-facing surface forming a lumbar support, wherein the flexible shell is movably coupled to the seat support structure, and a resilient member generating a variable compressive force acting on the flexible shell structure in a manner that tends to cause a curvature of the back support structure to increase, and wherein the compressive force decreases as the back support structure moves from the upright position to the reclined position.