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:
Oct. 01, 1991
Filed:
Sep. 21, 1989
James A Miller, Apollo, PA (US);
Aluminum Company of America, Pittsburgh, PA (US);
Abstract
A method of handling a fragile, flexible card on a perforated plate. The method includes first locating the card on a tray having an open center, and disposing the tray and card on the plate. The plate is located on a hollow platen which is evacuated to draw the card to the plate. The hollow of the platen has a center compartment and peripheral compartments located about the center compartment. The evacuation process begins with the center compartment and gradually evacuates the peripheral compartments such that the center portion of the card is drawn first to the periphery plate while the peripheral portions of the card are drawn later to the periphery of the plate. In this manner, the drawing process begins with the center of the card and progresses outwardly from the center to the periphery of the card. After the card is drawn to the plate, the card is secured to the open tray by clamps.