Method of making heated mirrors
First Claim
1. A method of producing a heated mirror comprising the steps of silvering a layer of electrically conductive reflective silvering directly upon a rear surface of an electrically insulating glass substrate to form a unitized laminate having a reflective surface as viewed through the glass substrate, scoring a line completely through the layer of silvering to the glass substrate to electrically insulate portions of the conductive material on opposite sides of the resulting through scoreline from each other whereby resultant conductive portions define a predetermined electrically conductive path, and subsequently covering at least the through scoreline with insulating material to provide an environmental seal.
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Accused Products
Abstract
A method of producing a heated mirror by selective removal of conductive reflective material from an insulating substrate to define a conductive path with a predetermined resistance. The conductive reflective material can be removed by scoring down to the substrate or by scoring and etching. Conductive paths are defined by tracks in a serpentine, spiral or interleaved comb pattern. Isolated regions may be left to designate a Trade Name which is visible when the mirror is demisted. Different insulating backings and terminals are also described.
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Citations
23 Claims
- 1. A method of producing a heated mirror comprising the steps of silvering a layer of electrically conductive reflective silvering directly upon a rear surface of an electrically insulating glass substrate to form a unitized laminate having a reflective surface as viewed through the glass substrate, scoring a line completely through the layer of silvering to the glass substrate to electrically insulate portions of the conductive material on opposite sides of the resulting through scoreline from each other whereby resultant conductive portions define a predetermined electrically conductive path, and subsequently covering at least the through scoreline with insulating material to provide an environmental seal.
- 3. A method of producing a heated mirror comprising the steps of forming a unitized laminate from a layer of electrically conductive reflective material and an electrically insulating substrate, scoring a line completely through the layer of conductive material to the insulating substrate to electrically insulate portions of the conductive material on opposite sides of the resulting through scoreline from each other whereby the conductive portions define a predetermined electrically conductive path, subsequently covering at least the through scoreline with insulating material to provide an environmental seal, utilizing a conductive adhesive to electrically connect a terminal to at least one of the conductive portions, and covering the terminal with a sheet of insulating material adhesively bonded to the conductive material.
- 14. A method of producing a heated mirror comprising the steps of depositing a layer of electrically conductive reflective material upon a rear surface of a transparent substrate formed of electrical insulating material to form a unitized laminate therefrom through which a reflective surface of the layer can be viewed through the transparent substrate, scoring a line completely through the reflective material layer to the substrate to expose the substrate through the thus formed through scoreline and to further thereby electrically insulate portions of the conductive material from each other across and on opposite sides of the through scoreline whereby the resultant conductive portions define predetermined electrically conductive paths each at least in part set-off by the through scoreline, and after the scoring step covering at least the through scoreline with insulating material to provide an environmental seal.
- 18. A method of producing a heated mirror comprising the steps of depositing a layer of electrically conductive reflective material upon a rear surface of a transparent substrate formed of electrical insulating material and another layer of protective material upon the reflective material layer to form a unitized protective layer/electrically conductive reflective layer/electrically insulating substrate laminate therefrom through which a reflective surface of the reflective layer can be viewed through the transparent substrate, simultaneously scoring a line completely through both the protective layer and the reflective material layer to the substrate to expose the substrate through the thus formed through scoreline and to further thereby electrically insulate portions of the conductive material from each other across and on opposite sides of the through scoreline whereby the resultant conductive portions define predetermined electrically conductive paths each at least in part set-off by the through scoreline, and after the scoring step covering the through scoreline and at least a portion of the protective layer with insulating material to provide an environmental seal.
Specification