Electromagnetic interference shielding of gas detector

1 . An electromagnetic interference (EMI) cover for a gas detector comprising one or more electrical component, the EMI cover comprising:

one or more cover layers, each cover layer including:

a plastic material layer; and

one or more layers of conductive or dielectric ink applied to the plastic material layer defining one or more conductive pathways;

wherein the one or more conductive pathways are disposed in a pattern to provide electromagnetic interference (EMI) shielding to the one or more electrical component;

wherein the one or more cover layers comprise a first cover layer and a second cover layer arranged in a stack; and

wherein a first plastic material layer of the first cover layer is disposed between a first electrically conductive ink layer of the first cover layer and a second electrically conductive ink layer of the second cover layer.

2 . The EMI cover of claim 1 , wherein the one or more conductive pathways are arranged in one of a grid pattern, a spoke and spiral pattern, or a spoke and wheel pattern.

3 . The EMI cover of claim 1 wherein the plastic material layer is transparent or translucent.

4 . The EMI cover of claim 1 , wherein the first electrically conductive ink layer is arranged in a first pattern and the second electrically conductive ink layer is arranged in a second pattern different from the first pattern.

5 . The EMI cover of claim 1 , further comprising at least one light source embedded in the stack or disposed on an exterior surface of the stack.

6 . The EMI cover of claim 5 , wherein the light source is a light emitting diode.

7 . The EMI cover of claim 5 , wherein:

the first electrically conductive ink layer is operably connected to the light source to power the light source; and

the second electrically conductive ink layer is connected to electrical ground.

8 . A method of forming an electromagnetic interference (EMI) cover for a gas detector comprising one or more electrical component, the method comprising:

forming a plastic material layer;

applying an electrically conductive ink layer to the plastic material layer forming one or more electrically conductive pathways, thereby defining one or more cover layers; and

forming the one or more cover layers into a desired cover shape;

wherein the one or more conductive pathways are disposed in a pattern to provide electromagnetic interference (EMI) shielding to the one or more electrical component;

wherein the one or more cover layers comprise a first cover layer and a second cover layer arranged in a stack; and

wherein a first plastic material layer of the first cover layer is disposed between a first electrically conductive ink layer of the first cover layer and a second electrically conductive ink layer of the second cover layer.

9 . The method of claim 8 , further comprising applying the electrically conductive ink in one of a grid pattern, a spoke and spiral pattern, or a wheel and spoke pattern.

10 . The method of claim 8 , wherein the first electrically conductive ink layer is arranged in a first pattern and the second electrically conductive ink layer is arranged in a second pattern different from the first pattern.

11 . The method of claim 8 , further comprising embedding or disposing at least one light source in the stack or on an exterior surface of the stack.

12 . The method of claim 11 , wherein the light source is a light emitting diode.

13 . The method of claim 11 , further comprising:

operably connecting the first electrically conductive ink layer to the light source to power the light source; and

connecting the second electrically conductive ink layer to electrical ground.

14 . The method of claim 8 , wherein the one or more cover layers are formed to the desired cover shape via an injection molding process.