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. 22, 1985
Filed:
Feb. 03, 1983
Steven F Trinkel, Rockport, IN (US);
Patrick E Strange, Jasper, IN (US);
Mathew A Slaats, Jasper, IN (US);
Kimball International, Inc., Jasper, IN (US);
Abstract
A seat adjustment mechanism for adjustably connecting a seat to a chair base is provided wherein a threaded spindle is secured to the seat and rotatably and axially movably received within a column member extending upwardly from the chair base. An adjusting nut is threadedly engaged with the spindle and supported within the column member by a bearing assembly, and which is upwardly urged by a compression spring such that the upper surface of the adjusting nut lockingly engages a downwardly facing engaging surface of a lock cap in the column member when the seat is unoccupied. By rotating the seat and the spindle secured thereto, vertical adjustment of the seat is provided. When the seat is occupied, the adjusting nut is moved downwardly by the spindle and against the bearing assembly to compress the spring and disengage the upper surface of the adjusting nut from the downwardly facing engaging surface. The seat and spindle then may be rotated without being vertically adjusted.