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:
Jan. 21, 2014
Filed:
May. 13, 2010
Massimo Costaglia, Santa Giustina in Colle, IT;
Massimo Costaglia, Santa Giustina in Colle, IT;
L & P Property Management Company, South Gate, CA (US);
Abstract
A chair-specific adjustment device is provided. The device includes a seat support and a base support linked to a gas column on which there is a rotating user-controlled handle. The handle controls the selection of the adjustment device's angular position as well as a safety limit clutch. The rotation of the handle generates traction of a tensional element that moves a limit switch. The limit switch runs transversely to the seat support and is shaped with steps that selectively interact with a limit appendage linked to the base support. The device includes a torsion bar that elastically limits the movement of the base support. As such, the device provides quick and easy adjustment of the backrest extension into various positions.