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:
May. 15, 1990
Filed:
Apr. 11, 1989
Andrew D Bruce, Troy, OH (US);
Daniel A Tucker, Plattsburgh, NY (US);
AM International Incorporated, Chicago, IL (US);
Abstract
The present provides a new and improved apparatus for verifying the operation of a signature hopper of a collator. The hopper includes a rotary drum for transporting a signature from a storage bin to a feed location on a raceway having a moving conveyor. Two reflectors are secured to the drum. A first, miss reflector, is located so as to be covered by a signature during a normal feed operation. A second, miss verify reflector, is located so as not to be covered by a signature during a normal feed operation. An optical sensor directs a beam of light toward the drum and monitors for light reflected by the reflectors. A controller determines when the sensor should receive a reflected beam from the miss verify reflector. A warning signal is generated if no light is reflected from the miss verify reflector when it is expected.