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. 15, 1997
Filed:
Nov. 03, 1995
Robert F Tweadey, II, Farmington Hills, MI (US);
Kenneth J Gajewski, Woodhaven, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A pre-assembled glass breakage detector applique has a carrier substrate which carries an electrical circuit subassembly. The electrical circuit subassembly includes an electrically conductive fragile film and spaced electrical connectors. A method of making a glazing unit security system includes pre-assembling one or more such glass breakage detector appliques and then applying the electrical circuit subassembly thereof, with or without the carrier substrate, to the surface of a glazing pane, and connecting electrical needs from continuity loss detection circuitry to the electrical connectors. In a motor vehicle application, the appliques can be applied to stationary and/or moveable vehicle windows, being especially advantageous for use on a hidden surface area of moveably mounted glazing panes. The fragile film loses electrical continuity upon disruption of the underlying glazing pane, such as upon overall fracture of a tempered glass pane upon significant fracture anywhere in the pane.