Unisys Corporation

Ronald G Shell

Zhongtai Chen

Randy C Keller

J Michael Spall

William Froman Battle

David J Concannon

Dawn M Erickson

Michael Spall

A card is provided for cleaning a document track of a document handling system, and methods for making and using the same. The card includes a planar body formed of a resilient material, such as a fibrous or polymeric material. The body includes a plurality of tabs, with each one of the tabs being pivotable relative to the body between an extended position and a collapsed position. In the extended position, the tab projects angularly from the body, while in the collapsed position, the tab is substantially co-planar with the body. The tabs are biased to the extended position, such as by creasing the material forming the body. The biased tabs extend across the document track, and sweep debris along the document track.

Track clearance card and methods of making and using the same

This invention is a sheet processing array having an imaging station, an in-site, an exit-site and a transport array connecting all of them. The transport array is adapted to advance sheets from the in-site, past the imaging station for imaging the first face of the sheet and to advance it to a reversing transport section. This section has a series of rollers arrayed in a loop which continually rotate in one direction and are adapted to provide non-stop forward movement that turns the sheet over and returns it to present its opposite face to the imaging station for imaging. The sheet is then advanced to the exit-site.

Turn around loop apparatus for document scanning/processing

A method for on-the-fly detection and separation of multiple checks or like documents transported in a track, wherein the documents are first subjected to twin opposed vacuum forces from a suction source, to separate multiple documents; then a measuring and analysis of the resulting pressure differentials is taken within the vacuum-forming system; the system being provided with a cyclonic filter-separator upstream of the suction source, for removing a storing dust and debris entrained within the vacuum-forming air flow; the cyclonic filter-separator being designed to provide constant vacuum-forming airflow regardless of the nature or quantity of debris removed and collected; the system also being provided with a pressure sensor to give clear indication of the separated/unseparated state of the passing documents, and to exhibit a variable damping accessory.

Double-document detection arrangement

An apparatus for differentiating and separating multiple overlapped like documents from single like items, transported along a track comprising a suction device applying opposed vacuum forces to separate the documents at a separation station. Measuring and analyzing the resulting pressure differentials within the suction system by a pressure sensor to indicate whether single or multiple documents are passing.

A method for differentiating and separating multiple overlapped like documents from single like items, transported along track means, comprising: subjecting the documents to opposed vacuum forces from suction means to separate them at a separation-station; then determining whether the documents are single or multiple, by measuring and analyzing the resulting pressure differentials within the suction system; using a cyclonic filter for removing and storing dust and debris entrained within the suction-conducting airflow, the cyclonic filter and suction system being designed and adapted to provide a relatively constant vacuum-generating airflow regardless of the nature of quantity of debris removed; plus a pressure sensor for indicating whether one or several documents are passing.

Document separation/detection technique

In a check processing apparatus, a technique for separating multiple checks from single like items, these transported along a track wherein the checks are first subjected to twin opposed vacuums to separate them; their state (whether single or multiple) is then determined by measuring and analyzing the resulting pressure differentials within the vacuum-generating system; which is, in turn, provided with a cyclonic filter/suction pump for removing and storing dust and debris entrained within the vacuum-forming air flow, this cyclonic pump providing a constant vacuum-airflow regardless of the nature or quantity of debris removed and collected; the system being also provided with pressure sensor(s) to indicate whether (single or multiple checks are passing, plus a fail-safe unit to warn of vacuum failure. A pressure sensing unit is further provided with a variable damping stage to mask-out minor, insignificant pressure fluctuations.

Separation process for a check processor

A method for on-the-fly detection and separation of multiple checks or like documents transported in a track, wherein the documents are first subjected to twin opposed vacuum forces from a suction source, to separate multiple documents; then a measuring and analysis of the resulting pressure differentials is taken within the vacuum-forming system; the system being provided with a cyclonic filter-separator upstream of the suction source, for removing and storing dust and debris entrained within the vacuum-forming air flow; the cyclonic filter-separator being designed to provide constant vacuum-forming airflow regardless of the nature or quantity of debris removed and collected; the system also being provided with a pressure sensor to give clear indication of the separated/unseparated state of the passing documents, and to exhibit a variable damping accessory.

Double-document detection systems

A method for differentiating and separating multiple overlapped like documents from single like items, transported along track means, comprising: subjecting the documents to opposed vacuum forces from suction means to separate them at a separation-station; then determining whether the documents are single or multiple, by measuring and analyzing the resulting pressure differentials within the suction system; using a cyclonic filter for removing and storing dust and debris entrained within the suction-conducting airflow, the cyclonic filter and suction system being designed and adapted to provide a relatively constant vacuum-generating airflow regardless of the nature or quantity of debris removed; plus a pressure sensor for indicating whether one or several documents are passing.

Growing community of inventors

Bloomfield Hills, MI, United States of America

Ronald G Shell