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:
Apr. 07, 1987
Filed:
Aug. 16, 1985
Ward Fleming, New York, NY (US);
Other;
Abstract
A pin screen has at least one and preferably two vertically aligned spaced plates having a plurality of closely spaced, small apertures each of which is adapted to receive a pin held in selected positions by frictional engagement in a horizontal pin orientation. A transparent sheet of material is vertically spaced a predetermined distance in front of said vertical plate or plates. The pins are longer than the separation between the plate or plates and the transparent sheet. The size of the pin head prevents the pins from passing through the apertured plates and the transparent cover prevents them from falling out of the apertures. A contoured three-dimensional image is created by the selective horizontal displacement of pins relative to the vertical apertured plate, and the displaced pins remain in their three-dimensional, image-creating position held there by friction until intentionally displaced to a different position.