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:
Apr. 11, 1995
Filed:
Oct. 21, 1993
Applicant:
Inventor:
Richard W Hanson, Sherwood, OR (US);
Assignee:
MDT Corporation, Torrance, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61G / ;
U.S. Cl.
CPC ...
297340 ; 297322 ; 29735413 ;
Abstract
An adjustable chair, such as a dental patient chair includes a chair back pivotally connected to a frame and mechanically linked to a travelling seat assembly so that as the chair back is pivoted, the distance between the back and seat assembly increases as the back is moved to an upright orientation and deceases as the back is moved to a reclined orientation. Linkage between the back and seat assembly may include a plate connected to rotate on an axis as the back is pivoted, and eccentrically connected to the travelling seat assembly.