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. 15, 1985
Filed:
Jan. 19, 1983
Raymond E Holobaugh, Tupelo, MS (US);
Mohasco Corporation, Ansterdam, NY (US);
Abstract
A height adjustment control arrangement for adjusting the height of a chair seat relative to a chair base in an office chair, includes a lower mounting assembly, an upper mounting assembly vertically displaceable relative to the lower mounting assembly, and a user-operated adjusting assembly operatively connected to the lower and upper mounting assemblies. The adjusting assembly includes an upright threaded shaft, a threaded nut on the shaft, a pull-up member on a lower side of the nut for pulling the latter upwardly, a push-down member on an upper side of the nut for pushing the latter downwardly, a keeper member movable between a locked and a released position in which displacement between the upper and lower mounting assemblies is respectively prevented and permitted, a release member for moving the keeper member between its locked and released positions, a restoring member for returning the release member to its initial position, and a counter-balance spring for urging the upper mounting assembly upwardly against the force of gravity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile