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:
Dec. 30, 2003
Filed:
Feb. 15, 2002
Marcus C. Koepke, Indianapolis, IN (US);
Jamie Krull, Coralville, IA (US);
Jay R. Machael, Muscatine, IA (US);
Tim Coffield, Grand Rapids, MI (US);
Keith L. Davis, Wilton, IA (US);
Amin K. Habboub, Muscatine, IA (US);
Matthew J. Phillips, Muscatine, IA (US);
Douglas A. Schroeder, Muscatine, IA (US);
Craig H. Schultz, Muscatine, IA (US);
Erik A. Steffensen, Iowa City, IA (US);
Brian R. Trego, Muscatine, IA (US);
Eric M. Zillig, Muscatine, IA (US);
HON Technology Inc., Muscatine, IA (US);
Abstract
An ergonomic chair includes a four-bar linkage arrangement wherein a lower frame member is provided with a rigid front support and a rigid rear support with a seat member pivotably connected to the front support. A back rest has an upper support pivotably connected at an upper end of the rear support of the lower frame member. A link member pivotably connects at a first end to a rear support of the seat member and at second end to a lower support of the back rest. This novel arrangement permits tilting movement of the backrest rearwardly relative to the lower frame member causing elevation of a rear portion of the seat member, permitting the feet to remain on the floor and alleviating pressure on the user's thighs, while rotation occurs closely coincident with the pivot axis of the user's hips and while maintaining a generally uniform gaze line.