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. 13, 1984
Filed:
Feb. 14, 1983
Giancarlo Della Torre, Milan, IT;
Rockwell-Rimoldi S.p.A., , IT;
Abstract
A device for sensing the removal of workpieces from a stack by a pickup head which, during its intended function, is lowered to engage the upper workpiece in a stack, then elevated to remove the workpiece and then rotated so the workpiece can be deposited in a preselected location. The sensing device is pivotably mounted on the pickup head and movable between positions below the underside of the pickup head when the latter fails to engage a workpiece and at a level even with the underside of the pickup head which is accomplished through its engagement with a workpiece held by the pickup head. Upon engagement and pick up of a workpiece, a signal is given to raise the pickup head and then rotate it so the workpiece can be deposited in a predetermined location. Upon failure to engage and remove a workpiece from a stack, a signal is given for the pickup head to make a plurality of repeated attempts to engage and remove a workpiece from the stack. After a predetermined number of failures of the pickup head to perform its intended function, a warning signal is activated for the purpose of drawing attention thereto.