Abstract: An anti-graffiti window film covering system that includes multiple polymeric film layers. Each layer includes a unique visual indicia to identify the number of sheets remaining in the system.

Abstract: An anti-graffiti window film covering system that includes multiple polymeric film layers. Each layer includes a unique visual indicia to identify the number of sheets remaining in the system.

Abstract: An anti-graffiti window film covering system that includes multiple polymeric film layers. Each layer includes a unique visual indicia to identify the number of sheets remaining in the system.

Abstract: An anti-graffiti window film covering system that includes multiple polymeric film layers. Each layer includes a unique visual indicia to identify the number of sheets remaining in the system.

Abstract: Improvements in a graffiti covering skin are disclosed the covering skin is formed from multiple layers of transparent or filtering layers that can be individually removed to provide a new layer without graffiti or damage. Each layer of the skin provides different functions to provide a material that covers existing graffiti and creates a new surface that reduces or repels future graffiti from being placed on the original host surface. One of the layers can be a visual pattern layer that provides the desired appearance of a hard surface of stainless steel, mirror, wood, color, marble, granite or light filtering. This layer provides a structural rigidity that maintains dimensional stability. The skin is backed with a removable adhesive that is removed from the host surface without leaving a residue. Each skin is measured and cut to the desired size before placement in a host surface.

Abstract: An anti-graffiti window film covering system that includes multiple polymeric film layers. Each layer includes a unique visual indicia to identify the number of sheets remaining in the system.

Abstract: Improvements in a graffiti covering skin are disclosed the covering skin is formed from multiple layers of transparent or filtering layers that can be individually removed to provide a new layer without graffiti or damage. Each layer of the skin provides different functions to provide a material that covers existing graffiti and creates a new surface that reduces or repels future graffiti from being placed on the original host surface. One of the layers can be a visual pattern layer that provides the desired appearance of a hard surface of stainless steel, mirror, wood, color, marble, granite or light filtering. This layer provides a structural rigidity that maintains dimensional stability. The skin is backed with a removable adhesive that is removed from a host surface without leaving a residue. Each skin is measured and cut to the desired size before placement on the host surface.

Abstract: Optical systems for focused light emission, which can be used as full color-capable pixels in grid assemblies, such as variable message signs and outdoor electronic display boards. The optical systems may include a light source that is a commercially available full-color LED in SMD design having a red, a green, and a blue LED crystal, which may be disposed at an inlet surface of a light-guiding rod having a constant cross-section and a jacket surface made of planes adjacent to each other at sharp edges. The light-guiding rod thereby captures the light substantially completely and completely mixes the different colors and brightnesses efficiently without scattering. The light output of the light-guiding rod lies at the focus of a convergent lens, which focuses the exiting light.

Abstract: Improvements in a graffiti covering skin are disclosed the covering skin is formed from multiple layers of different materials. Each layer of the skin provides different functions to provide a material that covers existing graffiti and creates a new surface that reduces or repels future graffiti from being placed on the original host surface. One of the layers is thin visual pattern layer that provides the desired appearance of a hard surface of stainless steel, wood, color, marble, granite or light filtering. This layer provides a structural rigidity that maintains dimensional stability. The thickness of the skin is sufficient to cover imperfections, scratches or gouges in the surface being covered. The skin is backed with a removable adhesive that is removed from a host surface without leaving a residue. Each skin is measured and cut to the desired size before placement on the host surface.

Abstract: Improvements in a graffiti covering skin are disclosed the covering skin is formed from multiple layers of different materials. Each layer of the skin provides different functions to provide a material that covers existing graffiti and creates a new surface that reduces or repels future graffiti from being placed on the original host surface. One of the layers is thin visual pattern layer that provides the desired appearance of a hard surface of stainless steel, wood, color, marble, granite or light filtering. This layer provides a structural rigidity that maintains dimensional stability. The thickness of the skin is sufficient to cover imperfections, scratches or gouges in the surface being covered. The skin is backed with a removable adhesive that is removed from a host surface without leaving a residue. Each skin is measured and cut to the desired size before placement on the host surface.

Abstract: Optical systems for focused light emission, which can be used as full color-capable pixels in grid assemblies, such as variable message signs and outdoor electronic display boards. The optical systems may include a light source that is a commercially available full-color LED in SMD design having a red, a green, and a blue LED crystal, which may be disposed at an inlet surface of a light-guiding rod having a constant cross-section and a jacket surface made of planes adjacent to each other at sharp edges. The light-guiding rod thereby captures the light substantially completely and completely mixes the different colors and brightnesses efficiently without scattering. The light output of the light-guiding rod lies at the focus of a convergent lens, which focuses the exiting light.

Abstract: A bowl for a vibratory feeder includes a wall portion having a generally circular cross section and a helical track having an inner diameter and an outer diameter. The wall portion comprises a plurality of slots and the track comprises a plurality of tabs which extend from one of the inner diameter or the outer diameter. The tabs are received in corresponding ones of the slots to thereby position the track relative to the wall portion.