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. 23, 1979
Filed:
Nov. 30, 1977
Applicant:
Inventors:
Thomas E Rensland, Grand Rapids, MI (US);
Alexander A Karrip, Grand Rapids, MI (US);
Assignee:
Steelcase Inc., Grand Rapids, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ; F16D / ;
U.S. Cl.
CPC ...
403120 ; 297291 ; 267150 ;
Abstract
A chair back mounted on a chair back support plate is pivotally connected by a resilient arrangement to a housing slideably mounted on a vertical post. The resilient arrangement includes a member of a resilient material with ends, each end having enlarged heads with an opening extending through the heads and a pivot groove positioned between the enlarged heads. Upon application of an external force, the chair back pivots about the groove and compresses the enlarged heads thereby closing the opening through the enlarged heads.