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:
Jul. 23, 2002
Filed:
Jun. 16, 2000
Mary L. Randall, Buffalo, MN (US);
The Bergquist Company, Chanhassen, MN (US);
Abstract
A touch screen assembly for contact input systems, with the touch screen including a base substrate with an electrically resistive coating thereon. An array of reticulated spaced raised projections are formed on the inner surface, with the raised projections consisting of a developed/cured photoresist. In its formation, the photoresist is applied as an adherent layer with a release-film backing, with the layer being applied onto a heated substrate. Thereafter, a laminate is formed by passing the photoresist layer beneath a heated pneumatically actuated nip roll to cause the photoresist layer to flow, thereby forming a layer of uniform thickness. Thereafter, the laminate is masked, exposed to incident radiation, and developed so as to provide a reticulated pattern of adherent raised projections. A flexible plastic film having a resistive coating thereon is thereafter mounted on the substrate in superimposed relationship to the raised projections.