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:
Mar. 10, 2015
Filed:
Feb. 25, 2009
Armando Donati, Rodengo Saiano, IT;
Armando Donati, Rodengo Saiano, IT;
Donati S.p.A., Rodengo Saiano (BS), IT;
Abstract
Device for synchronizing the tilt of a chair back and seat, of the type comprising a frame of the chair back (), a frame of the seat () and a support () integral with the base of the chair, as well as at least one first crank (), integral with the afore said frame of the chair back (), and hinged () at the rear to the frame of the seat () and to the support (), and at least one second crank (), hinged () at the front to the frame of the seat () and to the support (). The afore said first crank () and the second crank (), with the frame of the seat (), determine a articulated quadrilateral, wherein such a first crank () and such a second crank () lie substantially on skew lines.