US20040090789A1 - Snow removal vehicles with colored EL lighting - Google Patents

Snow removal vehicles with colored EL lighting Download PDF

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Publication number
US20040090789A1
US20040090789A1 US10/707,619 US70761903A US2004090789A1 US 20040090789 A1 US20040090789 A1 US 20040090789A1 US 70761903 A US70761903 A US 70761903A US 2004090789 A1 US2004090789 A1 US 2004090789A1
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United States
Prior art keywords
lighting
snowplow
safety
attached
cab
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US10/707,619
Inventor
Aaron Golle
John Golle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safe Lites LLC
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from US10/645,873 external-priority patent/US7306345B2/en
Application filed by Individual filed Critical Individual
Priority to US10/707,619 priority Critical patent/US20040090789A1/en
Publication of US20040090789A1 publication Critical patent/US20040090789A1/en
Assigned to SAFE LITES, LLC reassignment SAFE LITES, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GOLLE, AARON, GOLLE, JOHN
Priority to US11/770,399 priority patent/US7478935B2/en
Abandoned legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/01Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with reflective or luminous safety means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0029Spatial arrangement
    • B60Q1/0035Spatial arrangement relative to the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/30Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/503Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/543Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating other states or conditions of the vehicle
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/20Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00Advertising or display means not otherwise provided for
    • G09F19/22Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/508Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking specific to vehicles driving in fleets or convoys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/10Electro- or photo- luminescent surfaces, e.g. signalling by way of electroluminescent strips or panels

Definitions

  • This invention relates to highway vehicles, particularly, snowplows with EL signs and methods for improving snowplow safety using EL signs.
  • This invention relates to a safety device for transporting oversized loads and to a method for transporting oversized loads.
  • Point sources such as incandescent bulbs or light emitting diodes (LEDs) provide an intense source of light from a single point. Point sources can cause night blindness after a viewer looks away from the point source light. Also, point source lights appear to flicker and move around when viewed. This is due to their single source beams being distorted by elements such as dust particles, snow flakes, or other elements of the atmosphere between the point source and the viewer. Point source lights also have a limited viewable distance, or penetration through snow, fog, etc. due to similar scattering and distortion of the single source beam.
  • FIG. 1 shows a cross section diagram of a safety sign according to an embodiment of the invention.
  • FIG. 2 shows an isometric view of a safety sign according to an embodiment of the invention.
  • FIG. 3 shows an isometric view of a safety sign according to an embodiment of the invention.
  • FIG. 4 shows a front view of a safety sign according to an embodiment of the invention.
  • FIG. 5 shows an isometric view of a safety sign according to an embodiment of the invention.
  • FIG. 6 shows a front view of a safety sign according to an embodiment of the invention.
  • FIG. 7 shows a diagram of one embodiment of a method for plowing a road.
  • FIG. 8 shows a diagram of one embodiment of a method for transporting an oversized load.
  • FIG. 9 shows a print for an embodiment of a safety sign according to an embodiment of the invention.
  • FIG. 10 shows specifications for an embodiment of a safety sign according to an embodiment of the invention.
  • FIG. 11 shows a perspective view of snow plows of the invention that includes the EL safety lighting.
  • FIG. 12 shows a rear perspective view of a wide truck of the invention that includes the EL safety lighting.
  • FIG. 13 shows a perspective view of a road construction vehicle of the invention that includes the EL safety lighting.
  • FIG. 14 shows a highway with two adjacent motor vehicles, each containing EL lighting of the invention.
  • FIG. 15 shows a rear perspective view of a motor vehicle of the invention with a long trailer, that includes the EL lighting.
  • FIG. 16A shows a top plan view of one mudflap embodiment of the invention that includes EL lighting.
  • FIG. 16B shows a top plan view of another mudflap embodiment of the invention that includes EL lighting.
  • FIG. 17 shows a rear perspective view of one motor vehicle embodiment of the invention that includes EL safety lighting.
  • FIG. 18 shows a perspective view of another motor vehicle embodiment of the invention that includes EL safety lighting.
  • FIG. 19 shows a perspective view of another motor vehicle embodiment of the invention that includes safety lighting.
  • FIG. 1 shows a safety sign 100 utilizing electro luminescent (EL) technology.
  • a conducting base 110 is shown with a dielectric layer 120 coupled to the conducting base 110 .
  • the base is for some embodiments rigid and for other embodiments flexible. This feature enables the sign to be positioned on rigid or flexible surfaces.
  • a number of encapsulated phosphor portions 130 are shown coupled to the dielectric layer 120 . In one embodiment, the number of encapsulated phosphor portions 130 are microencapsulated.
  • a second conducting portion 140 is shown coupled over the number of encapsulated phosphor portions 130 . In one embodiment, the second conducting portion 140 includes a transparent conductor material.
  • an encapsulating layer 150 is included over the second conducting portion 140 . In one embodiment, the encapsulating layer 150 is included to provide moisture or weather resistance.
  • a pattern layer 160 is further shown coupled over the encapsulating layer 150 . In one embodiment, the pattern layer 160 defines a message or symbol that indicates safety or caution.
  • FIG. 1 is intended to illustrate one possible embodiment of an EL lighting configuration in a safety sign.
  • EL lighting can be obtained from the Durel Corporation of Chandler, AZ.
  • FIG. 2 shows an embodiment of a safety sign 200 .
  • the safety sign 200 includes an EL lighting surface 210 , and a power source 212 coupled to the EL lighting surface 210 .
  • the power source 212 includes an AC power source.
  • the power source 212 includes a DC power source coupled to an AC converter.
  • the power source is supplied by a power hook up on a vehicle.
  • a layer 220 is also included, with a pattern 222 located on the layer 220 . In FIG. 2, the layer 220 includes a transparent layer.
  • the pattern 222 in FIG. 2 is substantially opaque. Embodiments of patterns 222 include, but are not limited to, text, numbers, symbols, shapes, etc.
  • the safety sign 200 operates by transmitting light from the EL lighting surface 210 through portions of the layer 220 that are not obscured by the pattern 222 .
  • vehicle refers to two-wheeled, three-wheeled and four-wheeled automobiles, as shown at 1400 in FIG. 14, 1700 in FIG. 17, trucks as shown at 1200 in FIG. 12, 1410 in FIG. 14, semi's, as shown at 1500 in FIG. 15, fire engines, trains, rail cars, snowplows as shown at 1100 in FIG. 11, bicycles, police cars, buses as shown at 1800 in FIG. 18, ambulances, RV's as shown at 1900 in FIG. 19, road construction vehicles as shown at 1300 in FIG. 13 and any other vehicle having safety needs.
  • FIG. 3 shows an embodiment of a safety sign 300 .
  • the safety sign 300 includes an EL lighting surface 310 , and a power source 312 coupled to the EL lighting surface 210 .
  • Power source 312 includes, but is not limited to embodiments of power sources described above.
  • a layer 320 is also included, with a pattern 322 located on the layer 320 .
  • the layer 320 includes a substantially opaque layer.
  • the pattern 322 in FIG. 3 is substantially transparent. In one embodiment, the pattern 322 is cut out from the layer 320 .
  • Pattern 322 includes, but is not limited to embodiments of patterns described above.
  • the safety sign 300 operates by transmitting light from the EL lighting surface 310 through the substantially transparent pattern 322 .
  • FIG. 4 shows an embodiment of a safety sign 400 .
  • the safety sign 400 includes an EL lighting surface 410 , and a power source 412 coupled to the EL lighting surface 410 .
  • Power source 412 includes, but is not limited to embodiments of power sources described above.
  • the EL lighting surface 410 is shaped into a pattern.
  • the pattern includes, but is not limited to embodiments of patterns described above.
  • The. safety sign 400 operates by transmitting light from the EL lighting surface 410 directly in a pattern that conveys a message of safety.
  • a text pattern may, for example, convey a warning, such as is shown at 1510 in FIG. 15.
  • a triangle or other geometric shape may indicate a slow moving vehicle, as is shown at 1110 in FIG. 11.
  • FIG. 5 shows an embodiment of a safety sign 500 .
  • the safety sign 500 includes an EL lighting surface 510 , and a power source 512 coupled to the EL lighting surface 510 .
  • Power source 512 includes, but is not limited to embodiments of power sources described above.
  • a layer 520 is also included, with a pattern 522 located on the layer 520 .
  • the layer 520 includes a transparent layer.
  • the pattern 522 in FIG. 2 is substantially opaque.
  • the layer 520 in FIG. 5 may include a substantially opaque layer with a pattern 522 that is substantially transparent.
  • a layer 530 is further included in the safety sign 500 .
  • the layer 530 includes properties that alter a color of the EL lighting surface 510 .
  • Selected embodiments of safety signs as described in this document include colored EL material. Both an illuminated color and a non-illuminated color may be selected. Possible colors include yellow, white, blue-green, etc. A color can be chosen in the non-illuminated condition that is suited for daytime, while a different color can be chosen for the illuminated condition to optimize both day and night.
  • the addition in safety sign 500 of a layer 530 further broadens color options.
  • the layer 530 is tinted to alter the color of the EL lighting surface.
  • an EL lighting surface is included that is white in a non-illuminated condition, and blue-green in an illuminated condition.
  • a yellow tinted layer 530 is further included.
  • the light green complies with government regulations for color.
  • an EL lighting surface is included that is yellow in a non-illuminated condition, and yellow in an illuminated condition.
  • a yellow tinted layer 530 is further included. This provides a yellow appearance in the day, and a yellow appearance at night.
  • the pattern 522 is cut out from the layer 520 .
  • Pattern 522 includes, but is not limited to embodiments of patterns described above.
  • the safety sign 500 operates by transmitting light from the EL lighting surface 510 through the layer 530 and through substantially transparent portions of the layer 520 .
  • FIG. 6 shows one embodiment of a safety sign 600 .
  • the safety sign 600 includes an EL lighting surface 610 .
  • the shape of the safety sign 600 is dictated by a government standard.
  • the EL lighting surface 610 of the safety sign 600 is substantially rectangular in shape.
  • a width 612 of the EL lighting surface 610 is approximately 72 inches.
  • a height 614 of the EL lighting surface 610 is approximately 8.5 inches.
  • a pattern 616 is included on the safety sing 600 similar to embodiments described above.
  • the pattern includes a text message that states “Stay Back - Stay Alive.”
  • the pattern includes a text message that states “Oversized Load, as shown at 1210 in FIG.
  • Any number of safety messages are possible within the scope of the invention.
  • shapes or symbols are also possible to convey a message of safety. For example, a triangle may be used to indicate a slow moving vehicle, as shown at 1310 in FIG. 13.
  • FIG. 7 shows an embodiment of a method utilizing safety signs as described in embodiments above.
  • a road 710 is shown with a number of lanes 712 .
  • a number of vehicles 720 are shown on the road in a formation.
  • the vehicles 720 include snow plows.
  • Other embodiments of vehicles include, but are not limited to, road graders, dump trucks, various construction equipment, road transportation vehicles, flat bed trucks, and so forth.
  • the vehicles 720 as shown in FIG. 7 are snow plows, each vehicle 720 including a plow 722 .
  • a safety sign 724 as described in embodiments above is affixed to at least one vehicle 720 .
  • the vehicles 720 guide off each other in alignment using the safety signs 724 .
  • the safety signs 724 are affixed to the rear of the vehicles 720 .
  • the safety signs 724 are affixed to the front of the vehicles 720 .
  • FIG. 8 shows an embodiment of a method utilizing safety signs as described in embodiments above.
  • a road 810 is shown with a number of lanes 812 .
  • a transportation vehicle 820 such as a flat bed truck is shown with a payload portion 822 and a cab portion 824 .
  • a load 830 is shown as an oversized load with a width 832 that affects more than one lane 812 .
  • a safety sign 840 according to embodiments described above is shown attached to a rear portion of the transportation vehicle 820 .
  • an additional safety sign 842 according to embodiments described above is shown attached to a front portion of the transportation vehicle 820 .
  • vehicles include more than one safety sign using EL lighting.
  • the signs are positionable on the front and rear and side portions of a vehicle, as shown in one example, at 1500 in FIG. 15.
  • the vehicle 1500 includes a cab 1512 and a trailer 1514 capable of carrying hazardous cargo.
  • the cab includes EL warning signals 1516 .
  • the power source is not shown, but as described above is a component of the EL lighting.
  • the trailer 1514 includes the “DANGER” sign, and a “LONG LOAD” sign.
  • the trailer 1514 also includes EL strips 1520 and 1522 .
  • the vehicle 1500 also includes mudflaps 1524 and each include an EL lighting safety sign 1526 .
  • the EL lighting for motor vehicle 1500 is for some embodiments, multicolored. For other embodiments the lighting is static and blicking or all static or all blinking. While these lighting features are described for motor vehicle 1500 , it is understood that the features are usable for all motor vehicle embodiments.
  • safety signs and other indicia illuminated by EL lighting are positionable on mud flaps, such as is shown at 1524 and 1526 in FIG. 15.
  • Mud flaps are a component of a vehicle. Two types of mud flap embodiments are shown at 1602 A and 1602 B and 1604 A and 1604 B in FIGS. 16A and 16B.
  • the mudflaps 1602 A and 1602 B are for left and right handed sides of a vehicle.
  • Each of the pair of mudflaps 1602 A and 1602 B and 1604 A and 1604 B includes an EL safety sign 1610 .
  • the power source of the sign 1610 is attached to the sign as described above.
  • FIG. 9 shows a print of a safety sign according to one embodiment of the invention.
  • FIG. 10 shows operational specifications according to one embodiment of the invention.
  • FIG.11 A method of improving safety of snow plows and motor vehicles in hazardous visibility conditions, such as a snowstorm is shown in FIG.11.
  • the snowplows 1100 include EL lighting 1102 on the cabs, 1104 on the mudflaps and 1106 on the trailer.
  • the snowplows also include EL lighting on the real of the trailer and, optionally, on mudflaps in the rear of the trailer, which are not shown.
  • EL safety signs are used to mark and illuminate structures such as bridges, and on and off ramps.
  • the signs are positioned on structures such as guard rails, and, for some embodiments, the road itself.
  • Safety signs as described above all utilize EL technology.
  • EL technology provides a number of advantages to safety signs as described above.
  • the safety signs described using EL technology use lower power than conventional lighting technology.
  • the safety signs described using EL technology produce very low heat compared to conventional lighting technology. This can be especially advantageous in snow applications as discussed above in the background.
  • the safety signs described using EL technology are more robust than conventional lighting technology, and not prone to catastrophic failure. Due to numerous encapsulated phosphor portions, it is difficult to damage all encapsulated phosphor portions during an event such as a rock hitting a sign. Further, EL lighting does not burn out catastrophically as incandescent light bulbs do.
  • EL lighting generates light from encapsulated portions along a large area (such as 72 inches by 8.5 inches) the light provided by the EL lighting is not a point source, but is an area source. This reduces or eliminates night blinding, and flicker produced by point sources such as incandescent lights, and LEDs. Further, the area source of EL lighting can be seen from farther away, and through difficult conditions such as snow, dust, fog, etc. This is due to EL lighting providing numerous sources (an area of sources) of light to compensate for scattering and dispersement of light from any one individual source in the EL surface.
  • safety signs as described above are more visible in poor conditions such as snow, dust, fog, low light, etc.
  • Safety signs as described above can be seen from farther away than conventional signs.
  • Safety signs as described above eliminate problems associated with point source lighting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Road Signs Or Road Markings (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

A safety sign and methods are shown with advantages such as being more visible in poor conditions such as snow, dust, fog, low light, etc. Safety signs as shown can be seen from farther away than conventional signs. Safety signs as shown eliminate problems associated with point source lighting.

Description

    TECHNICAL FIELD
  • This invention relates to highway vehicles, particularly, snowplows with EL signs and methods for improving snowplow safety using EL signs. [0001]
  • BACKGROUND ART
  • This invention relates to a safety device for transporting oversized loads and to a method for transporting oversized loads. [0002]
  • There are many hazardous activities that can be made safer by warning people using safety signs. Specific examples include, but are not limited to, signs on snow plows to warn traffic as they approach from behind, slow moving vehicle signs such as are commonly attached to farm vehicles, oversized load signs on the back of highway transportation vehicles, road construction signs, etc. [0003]
  • Necessarily, for a safety sign to be effective, it must be seen by the person to be warned. In certain road safety situations, as listed above, an approaching vehicle's headlights can illuminate the safety signs. However, headlights are not always adequate to provide the necessary warning. Further, there are other applications of safety signs not involving vehicles with headlights, where the person to be warned requires increased visibility of safety signs in poor visibility conditions, from large distances, at night, etc. [0004]
  • Existing configurations of signs that are self lit, such as by incandescent bulbs, have a number of disadvantages. They require large amounts of power to operate. They produce large amounts of unwanted heat. In an application involving snow, in particular, heat can be detrimental by melting snow to water, which may cause electrical failure and/or icing problems. When existing configurations fail, they fail catastrophically. For example, if a rock from a road hits an incandescent bulb, the bulb breaks and fails completely. Also, when an incandescent bulb burns out, it goes from on to off without any warning, or in between condition. [0005]
  • Existing light configurations also suffer from negative effects of point source lighting. Point sources, such as incandescent bulbs or light emitting diodes (LEDs) provide an intense source of light from a single point. Point sources can cause night blindness after a viewer looks away from the point source light. Also, point source lights appear to flicker and move around when viewed. This is due to their single source beams being distorted by elements such as dust particles, snow flakes, or other elements of the atmosphere between the point source and the viewer. Point source lights also have a limited viewable distance, or penetration through snow, fog, etc. due to similar scattering and distortion of the single source beam. [0006]
  • What is needed is an improved safety sign with high visibility in difficult conditions such as in snow, fog, dust, at night, etc. What is also needed is an improved safety sign without the disadvantages of point source lighting.[0007]
  • DESCRIPTION OF DRAWINGS
  • FIG. 1 shows a cross section diagram of a safety sign according to an embodiment of the invention. [0008]
  • FIG. 2 shows an isometric view of a safety sign according to an embodiment of the invention. [0009]
  • FIG. 3 shows an isometric view of a safety sign according to an embodiment of the invention. [0010]
  • FIG. 4 shows a front view of a safety sign according to an embodiment of the invention. [0011]
  • FIG. 5 shows an isometric view of a safety sign according to an embodiment of the invention. [0012]
  • FIG. 6 shows a front view of a safety sign according to an embodiment of the invention. [0013]
  • FIG. 7 shows a diagram of one embodiment of a method for plowing a road. [0014]
  • FIG. 8 shows a diagram of one embodiment of a method for transporting an oversized load. [0015]
  • FIG. 9 shows a print for an embodiment of a safety sign according to an embodiment of the invention. [0016]
  • FIG. 10 shows specifications for an embodiment of a safety sign according to an embodiment of the invention. [0017]
  • FIG. 11 shows a perspective view of snow plows of the invention that includes the EL safety lighting. [0018]
  • FIG. 12 shows a rear perspective view of a wide truck of the invention that includes the EL safety lighting. [0019]
  • FIG. 13 shows a perspective view of a road construction vehicle of the invention that includes the EL safety lighting. [0020]
  • FIG. 14 shows a highway with two adjacent motor vehicles, each containing EL lighting of the invention. [0021]
  • FIG. 15 shows a rear perspective view of a motor vehicle of the invention with a long trailer, that includes the EL lighting. [0022]
  • FIG. 16A shows a top plan view of one mudflap embodiment of the invention that includes EL lighting. [0023]
  • FIG. 16B shows a top plan view of another mudflap embodiment of the invention that includes EL lighting. [0024]
  • FIG. 17 shows a rear perspective view of one motor vehicle embodiment of the invention that includes EL safety lighting. [0025]
  • FIG. 18 shows a perspective view of another motor vehicle embodiment of the invention that includes EL safety lighting. [0026]
  • FIG. 19 shows a perspective view of another motor vehicle embodiment of the invention that includes safety lighting.[0027]
  • DISCLOSURE
  • In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which is shown, by way of illustration, specific embodiments in which the invention may be practiced. In the drawings, like numerals describe substantially similar components throughout the several views. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. Other embodiments may be utilized and structural, logical, electrical changes, etc. may be made without departing from the scope of the present invention. [0028]
  • FIG. 1 shows a [0029] safety sign 100 utilizing electro luminescent (EL) technology. A conducting base 110 is shown with a dielectric layer 120 coupled to the conducting base 110. The base is for some embodiments rigid and for other embodiments flexible. This feature enables the sign to be positioned on rigid or flexible surfaces. A number of encapsulated phosphor portions 130 are shown coupled to the dielectric layer 120. In one embodiment, the number of encapsulated phosphor portions 130 are microencapsulated. A second conducting portion 140 is shown coupled over the number of encapsulated phosphor portions 130. In one embodiment, the second conducting portion 140 includes a transparent conductor material. In one embodiment, an encapsulating layer 150 is included over the second conducting portion 140. In one embodiment, the encapsulating layer 150 is included to provide moisture or weather resistance. A pattern layer 160 is further shown coupled over the encapsulating layer 150. In one embodiment, the pattern layer 160 defines a message or symbol that indicates safety or caution.
  • One of ordinary skill in the art, having the benefit of the present specification will recognize that alternative designs of an EL lighting device are possible. FIG. 1 is intended to illustrate one possible embodiment of an EL lighting configuration in a safety sign. One good example of EL lighting can be obtained from the Durel Corporation of Chandler, AZ. [0030]
  • FIG. 2 shows an embodiment of a [0031] safety sign 200. The safety sign 200 includes an EL lighting surface 210, and a power source 212 coupled to the EL lighting surface 210. In one embodiment, the power source 212 includes an AC power source. In one embodiment, the power source 212 includes a DC power source coupled to an AC converter. In one embodiment, the power source is supplied by a power hook up on a vehicle. A layer 220 is also included, with a pattern 222 located on the layer 220. In FIG. 2, the layer 220 includes a transparent layer. The pattern 222 in FIG. 2 is substantially opaque. Embodiments of patterns 222 include, but are not limited to, text, numbers, symbols, shapes, etc. The safety sign 200 operates by transmitting light from the EL lighting surface 210 through portions of the layer 220 that are not obscured by the pattern 222. As used herein, the term “vehicle” refers to two-wheeled, three-wheeled and four-wheeled automobiles, as shown at 1400 in FIG. 14, 1700 in FIG. 17, trucks as shown at 1200 in FIG. 12, 1410 in FIG. 14, semi's, as shown at 1500 in FIG. 15, fire engines, trains, rail cars, snowplows as shown at 1100 in FIG. 11, bicycles, police cars, buses as shown at 1800 in FIG. 18, ambulances, RV's as shown at 1900 in FIG. 19, road construction vehicles as shown at 1300 in FIG. 13 and any other vehicle having safety needs.
  • FIG. 3 shows an embodiment of a [0032] safety sign 300. The safety sign 300 includes an EL lighting surface 310, and a power source 312 coupled to the EL lighting surface 210. Power source 312 includes, but is not limited to embodiments of power sources described above. A layer 320 is also included, with a pattern 322 located on the layer 320. In FIG. 3, the layer 320 includes a substantially opaque layer. The pattern 322 in FIG. 3 is substantially transparent. In one embodiment, the pattern 322 is cut out from the layer 320. Pattern 322 includes, but is not limited to embodiments of patterns described above. The safety sign 300 operates by transmitting light from the EL lighting surface 310 through the substantially transparent pattern 322.
  • FIG. 4 shows an embodiment of a [0033] safety sign 400. The safety sign 400 includes an EL lighting surface 410, and a power source 412 coupled to the EL lighting surface 410. Power source 412 includes, but is not limited to embodiments of power sources described above. In one embodiment, the EL lighting surface 410 is shaped into a pattern. The pattern includes, but is not limited to embodiments of patterns described above. The. safety sign 400 operates by transmitting light from the EL lighting surface 410 directly in a pattern that conveys a message of safety. A text pattern may, for example, convey a warning, such as is shown at 1510 in FIG. 15. A triangle or other geometric shape may indicate a slow moving vehicle, as is shown at 1110 in FIG. 11.
  • FIG. 5 shows an embodiment of a [0034] safety sign 500. The safety sign 500 includes an EL lighting surface 510, and a power source 512 coupled to the EL lighting surface 510. Power source 512 includes, but is not limited to embodiments of power sources described above. A layer 520 is also included, with a pattern 522 located on the layer 520. In FIG. 5, the layer 520 includes a transparent layer. The pattern 522 in FIG. 2 is substantially opaque. Alternatively, the layer 520 in FIG. 5 may include a substantially opaque layer with a pattern 522 that is substantially transparent. A layer 530 is further included in the safety sign 500. The layer 530 includes properties that alter a color of the EL lighting surface 510.
  • Selected embodiments of safety signs as described in this document include colored EL material. Both an illuminated color and a non-illuminated color may be selected. Possible colors include yellow, white, blue-green, etc. A color can be chosen in the non-illuminated condition that is suited for daytime, while a different color can be chosen for the illuminated condition to optimize both day and night. The addition in [0035] safety sign 500 of a layer 530 further broadens color options. In one embodiment, the layer 530 is tinted to alter the color of the EL lighting surface. In one embodiment, an EL lighting surface is included that is white in a non-illuminated condition, and blue-green in an illuminated condition. In one embodiment, a yellow tinted layer 530 is further included. This provides a yellow appearance in the day, with a light green appearance at night. In one embodiment, the light green complies with government regulations for color. In another embodiment, an EL lighting surface is included that is yellow in a non-illuminated condition, and yellow in an illuminated condition. In one embodiment, a yellow tinted layer 530 is further included. This provides a yellow appearance in the day, and a yellow appearance at night.
  • In one embodiment, the pattern [0036] 522 is cut out from the layer 520. Pattern 522 includes, but is not limited to embodiments of patterns described above. The safety sign 500 operates by transmitting light from the EL lighting surface 510 through the layer 530 and through substantially transparent portions of the layer 520.
  • FIG. 6 shows one embodiment of a [0037] safety sign 600. The safety sign 600 includes an EL lighting surface 610. In one embodiment the shape of the safety sign 600 is dictated by a government standard. In FIG. 6, the EL lighting surface 610 of the safety sign 600 is substantially rectangular in shape. In FIG. 6, a width 612 of the EL lighting surface 610 is approximately 72 inches. In FIG. 6, a height 614 of the EL lighting surface 610 is approximately 8.5 inches. A pattern 616 is included on the safety sing 600 similar to embodiments described above. In one embodiment the pattern includes a text message that states “Stay Back - Stay Alive.” In one embodiment the pattern includes a text message that states “Oversized Load, as shown at 1210 in FIG. 12.” Any number of safety messages are possible within the scope of the invention. In addition to text, as described above, shapes or symbols are also possible to convey a message of safety. For example, a triangle may be used to indicate a slow moving vehicle, as shown at 1310 in FIG. 13.
  • FIG. 7 shows an embodiment of a method utilizing safety signs as described in embodiments above. A [0038] road 710 is shown with a number of lanes 712. A number of vehicles 720 are shown on the road in a formation. In one embodiment, the vehicles 720 include snow plows. Other embodiments of vehicles include, but are not limited to, road graders, dump trucks, various construction equipment, road transportation vehicles, flat bed trucks, and so forth. The vehicles 720 as shown in FIG. 7 are snow plows, each vehicle 720 including a plow 722. In one embodiment, a safety sign 724 as described in embodiments above is affixed to at least one vehicle 720. In one embodiment, the vehicles 720 guide off each other in alignment using the safety signs 724. In one embodiment, the safety signs 724 are affixed to the rear of the vehicles 720. In one embodiment, the safety signs 724 are affixed to the front of the vehicles 720. One of ordinary skill in the art, having the benefit of the present specification will appreciate that several possible formations of vehicles are possible within the scope of the invention.
  • FIG. 8 shows an embodiment of a method utilizing safety signs as described in embodiments above. A [0039] road 810 is shown with a number of lanes 812. A transportation vehicle 820 such as a flat bed truck is shown with a payload portion 822 and a cab portion 824. A load 830 is shown as an oversized load with a width 832 that affects more than one lane 812. A safety sign 840 according to embodiments described above is shown attached to a rear portion of the transportation vehicle 820. In one embodiment, an additional safety sign 842 according to embodiments described above is shown attached to a front portion of the transportation vehicle 820.
  • For some embodiments, vehicles include more than one safety sign using EL lighting. The signs are positionable on the front and rear and side portions of a vehicle, as shown in one example, at [0040] 1500 in FIG. 15. The vehicle 1500 includes a cab 1512 and a trailer 1514 capable of carrying hazardous cargo. The cab includes EL warning signals 1516. The power source is not shown, but as described above is a component of the EL lighting. The trailer 1514 includes the “DANGER” sign, and a “LONG LOAD” sign. The trailer 1514 also includes EL strips 1520 and 1522. The vehicle 1500 also includes mudflaps 1524 and each include an EL lighting safety sign 1526. The EL lighting for motor vehicle 1500 is for some embodiments, multicolored. For other embodiments the lighting is static and blicking or all static or all blinking. While these lighting features are described for motor vehicle 1500, it is understood that the features are usable for all motor vehicle embodiments.
  • In one embodiment, safety signs and other indicia illuminated by EL lighting are positionable on mud flaps, such as is shown at [0041] 1524 and 1526 in FIG. 15. Mud flaps, as used herein, are a component of a vehicle. Two types of mud flap embodiments are shown at 1602A and 1602B and 1604A and 1604B in FIGS. 16A and 16B. The mudflaps 1602A and 1602B are for left and right handed sides of a vehicle. Each of the pair of mudflaps 1602A and 1602B and 1604A and 1604B includes an EL safety sign 1610. The power source of the sign 1610 is attached to the sign as described above.
  • FIG. 9 shows a print of a safety sign according to one embodiment of the invention. FIG. 10 shows operational specifications according to one embodiment of the invention. [0042]
  • A method of improving safety of snow plows and motor vehicles in hazardous visibility conditions, such as a snowstorm is shown in FIG.11. The [0043] snowplows 1100 include EL lighting 1102 on the cabs, 1104 on the mudflaps and 1106 on the trailer. The snowplows also include EL lighting on the real of the trailer and, optionally, on mudflaps in the rear of the trailer, which are not shown.
  • In one other embodiment, EL safety signs are used to mark and illuminate structures such as bridges, and on and off ramps. The signs are positioned on structures such as guard rails, and, for some embodiments, the road itself. [0044]
  • Safety signs as described above all utilize EL technology. EL technology provides a number of advantages to safety signs as described above. The safety signs described using EL technology use lower power than conventional lighting technology. The safety signs described using EL technology produce very low heat compared to conventional lighting technology. This can be especially advantageous in snow applications as discussed above in the background. The safety signs described using EL technology are more robust than conventional lighting technology, and not prone to catastrophic failure. Due to numerous encapsulated phosphor portions, it is difficult to damage all encapsulated phosphor portions during an event such as a rock hitting a sign. Further, EL lighting does not burn out catastrophically as incandescent light bulbs do. [0045]
  • Further, because EL lighting generates light from encapsulated portions along a large area (such as 72 inches by 8.5 inches) the light provided by the EL lighting is not a point source, but is an area source. This reduces or eliminates night blinding, and flicker produced by point sources such as incandescent lights, and LEDs. Further, the area source of EL lighting can be seen from farther away, and through difficult conditions such as snow, dust, fog, etc. This is due to EL lighting providing numerous sources (an area of sources) of light to compensate for scattering and dispersement of light from any one individual source in the EL surface. [0046]
  • For the reasons above, safety signs as described above are more visible in poor conditions such as snow, dust, fog, low light, etc. Safety signs as described above can be seen from farther away than conventional signs. Safety signs as described above eliminate problems associated with point source lighting. [0047]
  • Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement which is calculated to achieve the same purpose may be substituted for the specific embodiment shown. This application is intended to cover any adaptations or variations of the present invention. It is to be understood that the above description is intended to be illustrative, and not restrictive. Combinations of the above embodiments, and other embodiments will be apparent to those of skill in the art upon reviewing the above description. The scope of the invention includes any other applications in which the above structures and fabrication methods are used. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. [0048]

Claims (26)

1. A snowplow, comprising: a cab; a trailer; a scraper; and EL lighting wherein the EL lighting is attached to the cab.
2. The snowplow of claim 1 wherein the EL lighting is attached to one or more doors on the cab.
3. The snowplow of claim 1 wherein the EL lighting is attached to a front portion of the cab.
4. The snowplow of claim 1 wherein the EL lighting is attached to an upper portion of the cab.
5. The snowplow of claim 1, further comprising one or more mudflaps attached to one or more of the cab and trailer.
6. The snowplow of claim 5 wherein the EL lighting is on one or more mudflaps.
7. The snowplow of claim 1 wherein the EL lighting emits a blinking display.
8. The snowplow of claim 1 wherein the EL lighting includes indicia.
9. The snowplow of claim 8 wherein the indicia imparts a message conveying safety or caution.
10. The snowplow of claim 1 wherein the EL lighting includes more than one color.
11. The snowplow of claim 10 wherein the EL lighting color is orange or yellow.
12. A method for improving driver safety in a snowplow, comprising: obtaining a snowplow that includes safety indicia illuminated by one or more EL lighting surfaces; and driving the snowplow under conditions that include darkness, storms, fog, and other conditions of adverse visibility.
13. The method of claim 1 wherein the safety indicia illuminated by one or more EL lighting surfaces includes a surface on a mud flap attached to the snowplow.
14. The method of claim 1 wherein the safety indicia illuminated by one or more EL lighting surfaces includes a surface on a cab of the snowplow.
15. The method of claim 1 wherein the safety indicia illuminated by one or more EL lighting surfaces includes a surface on the rear of the snowplow.
16. The method of claim 1 wherein the safety indicia illuminated by one or more EL lighting surfaces includes a surface on one or more rear view mirrors of the snowplow.
17. The method of claim 1 wherein the safety indicia illuminated by one or more EL lighting surfaces includes a surface on the top of the snowplow.
18. The method of claim 1 wherein the snowplow is driven adjacent to another snowplow that also includes the safety indicia illuminated by one or more EL lighting surfaces.
19. The method of claim 7 wherein the snowplows are driven in a snowstorm.
20. The method of claim 1 wherein one or more of the EL lighting surfaces blink.
21. The method of claim 7 wherein one or more of the EL lighting surfaces of one or more of the snowplows blinks.
22. A method for making a snowplow, comprising: obtaining a snowplow and attaching to the snowplow one or more El lighting devices, the EL lighting devices effective for signaling a safety signal to other drivers on a highway.
23. The method of claim 20 wherein the safety signal is a color.
24. The method of claim 20, wherein the EL lighting device is attached to the front of the snowplow.
25. The method of claim 20, wherein the EL lighting device is attached to the rear of the snowplow.
26. The method of claim 20 wherein at least one EL lighting device is attached to at least one mud guard attached to the snowplow.
US10/707,619 2002-11-27 2003-12-24 Snow removal vehicles with colored EL lighting Abandoned US20040090789A1 (en)

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US10/645,873 US7306345B2 (en) 2002-11-27 2003-08-21 High visibility safety sign
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180354415A1 (en) * 2017-06-09 2018-12-13 Komatsu Ltd. Work vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7128449B2 (en) * 2003-08-21 2006-10-31 Safe Lites, Llc Safety device for transporting oversized loads
US8844179B2 (en) 2011-04-25 2014-09-30 Electro-Luminx Lighting Corporation Apparatus and method of backlighting large format graphics

Citations (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721808A (en) * 1951-11-14 1955-10-25 Gen Electric Electroluminescent cell
US2844388A (en) * 1956-10-02 1958-07-22 Victor S Rheeling Truck wheel guard and support for warning sign
US2983914A (en) * 1957-12-26 1961-05-09 Western Progress Manufacturers Warning light which causes light rays to travel in a conical path
US4087124A (en) * 1974-07-22 1978-05-02 Rudkin-Wiley Corporation Illuminated drag reducing system
US4494326A (en) * 1981-09-29 1985-01-22 Nissan Motor Company, Limited Electrolumiscent display structure for motor vehicle window
US4603065A (en) * 1984-02-10 1986-07-29 Toyoda Gosei Co., Ltd. Decorative part
US4645970A (en) * 1984-11-05 1987-02-24 Donnelly Corporation Illuminated EL panel assembly
US4895110A (en) * 1988-06-22 1990-01-23 Advance Designs And Concepts Illuminated pet collar
US4927177A (en) * 1988-10-19 1990-05-22 G-P Manufacturing Co., Inc. Custom molded vehicle splash guard
US5005306A (en) * 1989-06-21 1991-04-09 Kinstler William G Illuminated vehicle sign
US5025351A (en) * 1990-03-15 1991-06-18 Martin Greg L Illuminated splash guard
US5337224A (en) * 1992-12-04 1994-08-09 Field John B A Electroluminescent transparency illuminator
US5339550A (en) * 1992-04-16 1994-08-23 Peter Hoffman Illuminated sign and method of assembly
US5434013A (en) * 1993-10-29 1995-07-18 Fernandez; Robert Low voltage illuminated automobile trim
US5437113A (en) * 1994-01-12 1995-08-01 Jones; Daniel K. Snow plow trip cutting edge
US5444930A (en) * 1993-08-16 1995-08-29 Design Display Group, Inc. Point of purchase channel display sign with electroluminescent lamp
US5479325A (en) * 1994-04-12 1995-12-26 Chien; Tseng-Lu Headgear with an EL light strip
US5485355A (en) * 1992-12-10 1996-01-16 Elam-Electroluminescent Industries Ltd. Electroluminescent light sources
US5497304A (en) * 1995-03-29 1996-03-05 Caine; Harold A. Side warning lights
US5518561A (en) * 1993-09-24 1996-05-21 Rosa; Stephen P. True color day-night graphics and method of assembly
US5533289A (en) * 1992-04-16 1996-07-09 I.D. Lite, Inc. Illuminated sign
US5566384A (en) * 1994-05-23 1996-10-15 Chien; Tseng-Lu Vehicle with an EL light strip
US5621991A (en) * 1995-10-31 1997-04-22 Stan-Tech Lighted display with electroluminescent lamps
US5666269A (en) * 1994-01-03 1997-09-09 Motorola, Inc. Metal matrix composite power dissipation apparatus
US5692327A (en) * 1996-01-23 1997-12-02 Illuminating Cars Uniquely, Ltd. Illuminated license plate
US5709455A (en) * 1995-10-12 1998-01-20 Spanset Inter Ag Night-time safety system
US5775016A (en) * 1995-07-03 1998-07-07 Chien; Tseng-Lu Illuminated safety guide
US5779346A (en) * 1995-03-30 1998-07-14 Dynamic Brilliance Corporation Electroluminescent device with a secure contact
US5909960A (en) * 1996-03-29 1999-06-08 Jager; Willem Mounting assembly for light duty snow plow
US6112437A (en) * 1999-04-07 2000-09-05 Lovitt; Bert Article with animated display
US6164804A (en) * 1998-08-12 2000-12-26 Self; Walter H. Truck light bar and mudflap holder apparatus
US6195925B1 (en) * 1998-10-26 2001-03-06 Clements M. Werner Safety warning flag assembly for use with highway trucks
US6203391B1 (en) * 1997-08-04 2001-03-20 Lumimove Company, Mo L.L.C. Electroluminescent sign
US20010024370A1 (en) * 1997-10-13 2001-09-27 David Macher A sun visor having an electro-luminescent film for illuminating a mirror
US6309764B1 (en) * 1996-12-30 2001-10-30 E.L. Specialists, Inc. Elastomeric EL lamp on apparel
US6371633B1 (en) * 2000-08-18 2002-04-16 Stephen C. Davis Snowplow blade safety light assembly attachment
US6409367B1 (en) * 2000-07-06 2002-06-25 Richard Pratt Rear-mounted vehicle lighting system
US6446879B1 (en) * 1998-02-04 2002-09-10 H.Y.O., Inc. Method and apparatus for depositing snow-ice treatment material on pavement
US20020181226A1 (en) * 2001-05-29 2002-12-05 Moshe Saminski Multicolored blinking Lighting Device
US6551726B1 (en) * 1996-05-30 2003-04-22 E. L. Specialists, Inc. Deployment of EL structures on porous or fibrous substrates
US6604834B2 (en) * 2000-07-10 2003-08-12 Blake H. Kalana Electroluminescent surface illuminator device
US6637906B2 (en) * 2001-09-11 2003-10-28 Recot, Inc. Electroluminescent flexible film for product packaging
US20030231485A1 (en) * 2002-06-14 2003-12-18 Tseng-Lu Chien Tubular electro-luminescent panel(s) light device
US6751898B2 (en) * 1996-07-23 2004-06-22 George W. Heropoulos Electroluminescent display apparatus
US20040128882A1 (en) * 2001-02-22 2004-07-08 Hagen Glass Indication sign
US6771508B1 (en) * 2003-02-14 2004-08-03 Intel Corporation Method and apparatus for cooling an electronic component
US6840098B2 (en) * 2003-01-27 2005-01-11 Donald R. Halliday Roadway friction tester and method
US6874904B2 (en) * 2003-05-21 2005-04-05 Tai Ping Hsu Light brightness changeable electroluminescent device

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758401A (en) 1953-03-09 1956-08-14 William L Wilson Vehicle signals
US2843954A (en) 1956-04-25 1958-07-22 Victor S Rheeling Guard
US3237963A (en) 1963-12-05 1966-03-01 Kemlite Corp Mud flap
US3582108A (en) 1968-09-26 1971-06-01 Ewell Lee Carlton Vehicle splash guard
US3683842A (en) 1970-05-22 1972-08-15 Sablite Corp Light bracket for farm vehicles
US3975849A (en) 1973-09-17 1976-08-24 Tuleja Anthony Z Reflecting triangular warning devices
US4297675A (en) 1980-01-21 1981-10-27 Rubottom Nolan R Supplemental right turn signal for semitrailers
US5426414A (en) 1993-11-10 1995-06-20 Flatin; Jerry Enhanced auxiliary signaling device
AU3485597A (en) 1996-06-13 1998-12-30 American International Pacific Industries Corp. Electroluminescent lamps for vehicle lighting
DE19745993C2 (en) 1997-10-20 1999-11-11 Daimler Chrysler Ag Vehicle with electroluminescent light strip
GB2358913B (en) 2000-02-07 2002-07-17 Jamal Faizi Ahmed Vehicle mudflap with lights
US6446571B1 (en) 2001-01-25 2002-09-10 Printmark Industries, Inc. Light reflecting warning kit for vehicles
DE10108713B4 (en) 2001-02-23 2006-03-02 Daimlerchrysler Ag Lorries, in particular tractor units
US7306345B2 (en) * 2002-11-27 2007-12-11 Safe Lites, Llc High visibility safety sign
US7128449B2 (en) 2003-08-21 2006-10-31 Safe Lites, Llc Safety device for transporting oversized loads
US6778077B1 (en) 2003-01-02 2004-08-17 Degraaf Henry C. Vehicle mounted warning assembly
US20040080957A1 (en) 2003-08-21 2004-04-29 Aaron Golle Moduflaps with EL lighting

Patent Citations (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721808A (en) * 1951-11-14 1955-10-25 Gen Electric Electroluminescent cell
US2844388A (en) * 1956-10-02 1958-07-22 Victor S Rheeling Truck wheel guard and support for warning sign
US2983914A (en) * 1957-12-26 1961-05-09 Western Progress Manufacturers Warning light which causes light rays to travel in a conical path
US4087124A (en) * 1974-07-22 1978-05-02 Rudkin-Wiley Corporation Illuminated drag reducing system
US4494326A (en) * 1981-09-29 1985-01-22 Nissan Motor Company, Limited Electrolumiscent display structure for motor vehicle window
US4603065A (en) * 1984-02-10 1986-07-29 Toyoda Gosei Co., Ltd. Decorative part
US4645970A (en) * 1984-11-05 1987-02-24 Donnelly Corporation Illuminated EL panel assembly
US4895110A (en) * 1988-06-22 1990-01-23 Advance Designs And Concepts Illuminated pet collar
US4927177A (en) * 1988-10-19 1990-05-22 G-P Manufacturing Co., Inc. Custom molded vehicle splash guard
US5005306A (en) * 1989-06-21 1991-04-09 Kinstler William G Illuminated vehicle sign
US5025351A (en) * 1990-03-15 1991-06-18 Martin Greg L Illuminated splash guard
US5339550A (en) * 1992-04-16 1994-08-23 Peter Hoffman Illuminated sign and method of assembly
US5367806A (en) * 1992-04-16 1994-11-29 Hoffman; Peter Illuminated sign
US5533289A (en) * 1992-04-16 1996-07-09 I.D. Lite, Inc. Illuminated sign
US5337224A (en) * 1992-12-04 1994-08-09 Field John B A Electroluminescent transparency illuminator
US5485355A (en) * 1992-12-10 1996-01-16 Elam-Electroluminescent Industries Ltd. Electroluminescent light sources
US5444930A (en) * 1993-08-16 1995-08-29 Design Display Group, Inc. Point of purchase channel display sign with electroluminescent lamp
US5518561A (en) * 1993-09-24 1996-05-21 Rosa; Stephen P. True color day-night graphics and method of assembly
US5434013A (en) * 1993-10-29 1995-07-18 Fernandez; Robert Low voltage illuminated automobile trim
US5666269A (en) * 1994-01-03 1997-09-09 Motorola, Inc. Metal matrix composite power dissipation apparatus
US5437113A (en) * 1994-01-12 1995-08-01 Jones; Daniel K. Snow plow trip cutting edge
US5479325A (en) * 1994-04-12 1995-12-26 Chien; Tseng-Lu Headgear with an EL light strip
US5566384A (en) * 1994-05-23 1996-10-15 Chien; Tseng-Lu Vehicle with an EL light strip
US5497304A (en) * 1995-03-29 1996-03-05 Caine; Harold A. Side warning lights
US5779346A (en) * 1995-03-30 1998-07-14 Dynamic Brilliance Corporation Electroluminescent device with a secure contact
US5775016A (en) * 1995-07-03 1998-07-07 Chien; Tseng-Lu Illuminated safety guide
US5709455A (en) * 1995-10-12 1998-01-20 Spanset Inter Ag Night-time safety system
US5621991A (en) * 1995-10-31 1997-04-22 Stan-Tech Lighted display with electroluminescent lamps
US5692327A (en) * 1996-01-23 1997-12-02 Illuminating Cars Uniquely, Ltd. Illuminated license plate
US5909960A (en) * 1996-03-29 1999-06-08 Jager; Willem Mounting assembly for light duty snow plow
US6551726B1 (en) * 1996-05-30 2003-04-22 E. L. Specialists, Inc. Deployment of EL structures on porous or fibrous substrates
US6751898B2 (en) * 1996-07-23 2004-06-22 George W. Heropoulos Electroluminescent display apparatus
US6309764B1 (en) * 1996-12-30 2001-10-30 E.L. Specialists, Inc. Elastomeric EL lamp on apparel
US6203391B1 (en) * 1997-08-04 2001-03-20 Lumimove Company, Mo L.L.C. Electroluminescent sign
US20010024370A1 (en) * 1997-10-13 2001-09-27 David Macher A sun visor having an electro-luminescent film for illuminating a mirror
US6446879B1 (en) * 1998-02-04 2002-09-10 H.Y.O., Inc. Method and apparatus for depositing snow-ice treatment material on pavement
US6164804A (en) * 1998-08-12 2000-12-26 Self; Walter H. Truck light bar and mudflap holder apparatus
US6195925B1 (en) * 1998-10-26 2001-03-06 Clements M. Werner Safety warning flag assembly for use with highway trucks
US6112437A (en) * 1999-04-07 2000-09-05 Lovitt; Bert Article with animated display
US6409367B1 (en) * 2000-07-06 2002-06-25 Richard Pratt Rear-mounted vehicle lighting system
US6604834B2 (en) * 2000-07-10 2003-08-12 Blake H. Kalana Electroluminescent surface illuminator device
US6371633B1 (en) * 2000-08-18 2002-04-16 Stephen C. Davis Snowplow blade safety light assembly attachment
US20040128882A1 (en) * 2001-02-22 2004-07-08 Hagen Glass Indication sign
US20020181226A1 (en) * 2001-05-29 2002-12-05 Moshe Saminski Multicolored blinking Lighting Device
US6637906B2 (en) * 2001-09-11 2003-10-28 Recot, Inc. Electroluminescent flexible film for product packaging
US20030231485A1 (en) * 2002-06-14 2003-12-18 Tseng-Lu Chien Tubular electro-luminescent panel(s) light device
US6840098B2 (en) * 2003-01-27 2005-01-11 Donald R. Halliday Roadway friction tester and method
US6771508B1 (en) * 2003-02-14 2004-08-03 Intel Corporation Method and apparatus for cooling an electronic component
US6874904B2 (en) * 2003-05-21 2005-04-05 Tai Ping Hsu Light brightness changeable electroluminescent device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180354415A1 (en) * 2017-06-09 2018-12-13 Komatsu Ltd. Work vehicle
US10759337B2 (en) * 2017-06-09 2020-09-01 Komatsu Ltd. Work vehicle

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US20070245606A1 (en) 2007-10-25

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