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. 29, 1991
Filed:
Aug. 23, 1989
Applicant:
Inventor:
Vincent G Amorosi, Warminster, PA (US);
Assignee:
Quad Systems Corporation, Horsham, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29740 ; 29834 ; 901 40 ;
Abstract
An end effector or centering chuck is disclosed having centering fingers which employ a linear sliding motion. A stepper motor is mounted on the centering chuck and controls the opening and closing of the centering fingers. The stepper motor is controlled such that the centering fingers decelerate as they approach the work to be centered. The X-axis fingers, for example, are moved into engagement with the work to be centered with the Y-axis fingers disengaged. After alignment in the X direction is achieved, the work is centered in the Y-axis direction with the Y fingers while the X fingers are disengaged.