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:
Dec. 13, 1977
Filed:
Jan. 13, 1976
Richard H Wolters, Grand Rapids, MI (US);
Herman Miller, Inc., Zeeland, MI (US);
Abstract
A pivotally mounted back support for a chair is disclosed incorporating a pivotal mounting utilizing a plurality of interleaved clutch plates. Alternate ones of the clutch plates are stationary and the remainder are connected to the lower end of the back support post to pivot with the post about a common pivot shaft. Locking of the fore and aft pivotal position of the back is effected by squeezing together the clutch plates to provide a surface-to-surface frictional bond. Springs urge the post into erected position. A handle, readily accessible to a person seated on the chair is provided to effect locking and release of the clutch and thus pivotal adjustment of the position of the back.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile