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. 19, 2020
Filed:
Sep. 13, 2018
Applicants:
Burkhard Schmitz, Berlin, DE;
Carola Zwick, Berlin, DE;
Roland Zwick, Berlin, DE;
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47C 1/00 (2006.01); A47C 1/023 (2006.01); A47C 3/025 (2006.01); A47C 3/26 (2006.01); A47C 31/12 (2006.01); A47C 7/44 (2006.01); A47C 1/032 (2006.01);
U.S. Cl.
CPC ...
A47C 31/126 (2013.01); A47C 1/03277 (2013.01); A47C 7/441 (2013.01); A47C 7/445 (2013.01);
Abstract
A chair including a subframe, a seat element, a back element, a spring mechanism and an adjustment device. The spring mechanism includes a leaf spring, which is clamped on one side in the subframe, and a support, which is movable on a track between the leaf spring and the subframe. The adjustment device includes an adjustment member and a transmission mechanism. A movement of the adjustment member is translated into a movement of the support at a transmission ratio of between 1:0.5 and 1:4.