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:
Feb. 21, 1984
Filed:
May. 06, 1982
Charles W Eldridge, Beverly, MA (US);
Paxall, Inc., Chicago, IL (US);
Abstract
Apparatus for folding the trailing edge of paperboard blanks conveyed along a straight-line path includes a rotatable shaft disposed below and transverse to the conveyor and having arms with heads at their ends which extend upward through openings between conveyor belts. The shaft is rotated to cause the heads to contact the trailing panels or flaps of the blanks and fold them onto the blank body. To rotate the shaft intermittently it is momentarily connected to a continuously rotating drive by a clutch-brake which permits substantially instantaneous engagement and disengagement. The precise position of each blank is determined by a signal generated by a photodetector, and the rotational orientation of the shaft is determined by optical detectors associated therewith. A signal from the photodetector indicating position of the blank is received by a controller which also has input of the conveyor speed and which responds by actuating the clutch-brake at the proper time.