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:
Sep. 20, 1994
Filed:
May. 19, 1993
Loris Miotto, Roncade, IT;
Shepherd Products U.S., Inc., St. Joseph, MI (US);
Abstract
A mechanical device connectable to the upper end of a central column extending from a chair base for the synchronous movement and locking of the seat and backrest of a chair. The device includes a first bracket connected to the column. A second bracket for connection to the seat is pivotally connected to the first bracket by a first axis. A third bracket for connection to the backrest is pivotally connected to the second bracket. A third axis is connected to the first bracket and extends through slots in the third bracket for limiting the rotation thereof. A fourth axis is connected to the second bracket and is connected to the third axis by a plurality of slotted disks. The third axis is operative to selectively lock the disks in a stationary position to prevent pivotal movement of the second and third brackets.