초록 ▼

An illuminator for an alpha-numeric/graphic information board is adapted to be disposed in front of the information. An array of light sources directly illuminates an edge of the lens and a plurality of grooves arranged in a front face of the lens disperses the light received from the array onto the

An illuminator for an alpha-numeric/graphic information board is adapted to be disposed in front of the information. An array of light sources directly illuminates an edge of the lens and a plurality of grooves arranged in a front face of the lens disperses the light received from the array onto the information. This reduces the possibility of reflection of light from the illuminator toward the observer and does not significantly increase the overall thickness of the board. A transparent cover disposed against te front face of the lens protects the lens from dirt, debris, scratches, nicks and other damage and is easily cleaned and inexpensive to replace. Masking strips disposed on the rear face of the cover coincide with the grooves to block light from being dispersed away from the information and to emphasize or frame the information being illuminated to the observer.

대표청구항 ▼

An illuminator for an alpha-numeric/graphic information board is adapted to be disposed in front of the information. An array of light sources directly illuminates an edge of the lens and a plurality of grooves arranged in a front face of the lens disperses the light received from the array onto the

An illuminator for an alpha-numeric/graphic information board is adapted to be disposed in front of the information. An array of light sources directly illuminates an edge of the lens and a plurality of grooves arranged in a front face of the lens disperses the light received from the array onto the information. This reduces the possibility of reflection of light from the illuminator toward the observer and does not significantly increase the overall thickness of the board. A transparent cover disposed against te front face of the lens protects the lens from dirt, debris, scratches, nicks and other damage and is easily cleaned and inexpensive to replace. Masking strips disposed on the rear face of the cover coincide with the grooves to block light from being dispersed away from the information and to emphasize or frame the information being illuminated to the observer. ch the air contacts as it travels through the channel and imparting turbulence to the air flow. 3. The dryer of claim 1, wherein the deflection member comprises an elongate corrugated member having a plurality of apertures formed through opposite surfaces thereof for permitting passage of air. 4. The dryer of claim 1, wherein the second air flow path comprises an enclosed channel having one or more deflection members located therein for increasing the surface area against which the air contacts as it travels through the channel and imparting turbulence to the air flow. 5. The dryer of claim 1, wherein the first and second air flow paths are configured for flowing air in directions countercurrent to one another. 6. The dryer of claim 1, wherein the third air flow path comprises an enclosed channel having one or more deflection members located therein for increasing the surface area against which the air contacts as it travels through the channel and imparting turbulence to the air flow. 7. The dryer of claim 1, wherein the refrigerant path comprises an enclosed channel having one or more deflection members located therein for increasing the surface area against which the refrigerant contacts as it travels through the channel and imparting turbulence to the refrigerant flow. 8. The dryer of claim 1, wherein the third air flow path and the refrigerant flow path are configured for flow in directions countercurrent to one another. 9. The dryer of claim 1, wherein the separator comprises an elongate enclosure having an entrance opening adjacent one end and at least one exit opening adjacent the opposite end, with one or more internal impact members located therein for being impacted by air as it travels therethrough. 10. The dryer of claim 9, wherein the enclosure of the separator is a cylinder and the impact member comprises a spiral member located within the cylinder. 11. The dryer of claim 1, wherein the fourth air flow path has a flow direction generally aligned with a length axis of the separator and the fifth air flow path has a direction as it exits the separator that is substantially perpendicular to the length axis of the separator. 12. The dryer of claim 1, wherein the demister comprises a mesh material defining a plurality of air flow paths. 13. The dryer of claim 1, wherein the demister is removable from the dryer for cleaning purposes. 14. The dryer of claim 1, further comprising a drain located adjacent a lower portion of the dryer for removing contaminants from the dryer. 15. A separator for removing contaminants from air, the separator comprising an elongate enclosure having an inlet end and an opposite outlet end, the inlet end of the separator being in flow communication with a source of air, the separator defining a first air flow path between the inlet and outlet ends of the separator and a second air flow path between the outlet end of the separator and a wall member positioned adjacent outlet end of the separator for being contacted by air exiting the outlet end of the separator, wherein air traveling in the first flow path undergoes a volumetric expansion and substantial change of direction as it exits the separator and enters the second air flow path and further undergoes a change of direction as it impacts the wall member. 16. The separator of claim 15, further comprising one or more internal impact members located therein for being impacted by air as it travels therethrough. 17. The separator of claim 15, wherein the enclosure of the separator is a cylinder and the impact member comprises a spiral member located within the cylinder. 18. The separator of claim 15, wherein the first air flow path has a flow direction generally aligned with a length axis of the separator and the second air flow path has a direction as it exits the separator that is substantially perpendicular to the length axis of the separator. 19. The dryer of claim 1, wherein the inlet stream of air comprises compressed air. 20. The separat