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:
Aug. 20, 1985
Filed:
Jun. 10, 1983
Thomas L Latone, Quakertown, PA (US);
Knoll International, Inc., New York, NY (US);
Abstract
A back support control mechanism for a chair or the like is provided for a back support movable toward and away form a seat. Adjustable positioning of the back support with respect to the seat in an infinite number of positions in a range of movement of the back support is provided through use of a channel member fixed with respect to the seat and a pressure pad positioned within the channel member and fixed with respect to the back support. The pressure pad slides within the channel member, and a lever is coupled to the pressure pad through a spring plate. The lever is movable with the pressure pad and with respect thereto, and has a cam surface thereon which, in one position of the lever with respect to the pressure pad, bears against the pressure pad through the spring plate, causing the pressure pad to bear against the channel member to fix the pressure pad in position with respect to the channel member and to prevent further movement of the pressure pad, thereby to fix the position of the back support with respect to the seat. A stop pin is carried by the channel member which extends into a slot in the pressure pad. A terminal end of the slot limits the range of movement of the back support with respect to the seat.