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:
Apr. 29, 2008
Filed:
Dec. 02, 2005
Armando Donati, Rodengo Saiano, IT;
Armando Donati, Rodengo Saiano, IT;
Donati S.p.A., Rodengo Saiano (BS), IT;
Abstract
Synchronisation mechanism for chairs or armchairs, of the type provided with a base (), on which at least one seat frame () and at least one backrest frame () are hinged, at least one stiffening spring () positioned between the base and the backrest frame, in addition to a device for adjusting the stiffness of the above-mentioned spring comprising means () to move one end () of the spring with respect to its other end (). The above-mentioned means to move one end of the spring with respect to its other end comprise at least one cam element () hinged () to the base, so that the cam element acts, directly or indirectly, on the end () to be moved of the spring, the other end () of the spring being linked to the backrest frame.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile