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:
Jun. 21, 2005
Filed:
Oct. 10, 2003
Applicant:
Thomas L. Treon, Versailles, OH (US);
Inventor:
Thomas L. Treon, Versailles, OH (US);
Assignee:
Midmark Corporation, Versailles, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B011/01 ; A47C001/14 ;
U.S. Cl.
CPC ...
Abstract
An apparatus and method positions a powered examination chair at a constant, desired speed. The desired speed is achieved irrespective of patient weight and/or direction of chair travel. A power signal supplied to an actuating motor is apportioned according to a load incident on the chair. The determined load accounts for patient weight, as well as to gravitational and mechanical forces.