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:
Nov. 15, 1988
Filed:
Apr. 27, 1987
Dale A Wood, Canton, MI (US);
Robert J Todd, Milford Township, Wayne County, MI (US);
Norman N Fender, Hudson, MI (US);
Graco Robotics Inc., Livonia, MI (US);
Abstract
An electric robot having a base unit which is rotatable about a vertical first axis is provided with a horizontal second axis to which is pivotally mounted a vertical arm. At the other end of the vertical arm, a horizontal arm is mounted which has at the end thereof a wrist for carrying a tool such as a spray gun. Motors for operation of the wrist are placed coaxially with the second axis and are placed inside the shafts for the horizontal and vertical arms. The counterbalancing mechanisms have an axis of motion which is parallel to the second axis, pulleys being used to change the direction of the tensioning cables from tangential to the second axis to parallel to the second axis.