Abstract: A road marker includes a single piece of material having a width of approximately three inches or less. The piece includes a top surface, a bottom surface, and a sloped face disposed between the top surface and the bottom surface. The bottom surface is configured to enable the bottom surface to be connected directly to a floor of a channel of a roadway. The road marker further includes a reflector disposed on the sloped face. Another road marker disclosed herein includes a reflecting member including a reflective surface. The road marker also includes a housing configured to support at least a portion of the reflecting member below a surface of a roadway.

Abstract: A method for forming and applying retroreflective pavement markings comprising the steps of a) spraying the area with a hot epoxy binder, b) depositing particles of a microcrystalline ceramic element having a high refractive index onto the fresh epoxy binder, c) depositing relatively large spherical glass beads onto the fresh epoxy binder, and d) depositing relatively small spherical glass beads onto the fresh epoxy binder. The small beads provide high reflectivity in daytime and at night on dry pavement. The large beads provide superior reflectivity at night on damp pavement. The ceramic element particles provide high reflectivity when wet and during heavy rain. Where the pavement is subject to snowplowing, the marking may be inlaid in a recessed area in the pavement, the recess being about 100 mils deep, and the wet epoxy layer being about 20 mils thick.

Abstract: Disclosure relates to a road delineator installed at a road facility, such as a guardrail, to reflect light from car headlights, and more specifically, an angle adjustment part of the delineator having a cover hinged to a stationary body has a simple structure to facilitate angle adjustment of the hinged cover, the head of an anchor bolt is easily inserted into the stationary body that is installed at the road facility yet the anchor bolt is not easily separated from the stationary body once the head thereof sits in the stationary body, such that the delineator at the road facility can be installed conveniently, and a backing metal is embedded in the bottom plate of the stationary body to protect the bottom plate of the stationary body made of a synthetic resin material from damages caused by the head of the anchor bolt when the anchor bolt is forcedly fastened to the road facility.

Abstract: The present disclosure relates to a road delineator installed at a road facility, such as a guardrail, to reflect light from car headlights, and more specifically, an angle adjustment part of the delineator having a cover hinged to a stationary body has a simple structure to facilitate angle adjustment of the hinged cover, the head of an anchor bolt is easily inserted into the stationary body that is installed at the road facility yet the anchor bolt is not easily separated from the stationary body once the head thereof sits in the stationary body, such that the delineator at the road facility can be installed conveniently, and a backing metal is embedded in the bottom plate of the stationary body to protect the bottom plate of the stationary body made of a synthetic resin material from damages caused by the head of the anchor bolt when the anchor bolt is forcedly fastened to the road facility.

Abstract: A pavement marker includes a base and at least one lens with retroreflective areas aligned to reflect headlights back toward a vehicle for producing a nighttime signal. The lens and/or the base are formed from resins that include a fluorescent material. At least a portion of the lens is free of the retroreflective areas so that the fluorescent material of the lens and/or the base produces a daytime signal emitted from or through the lens.

Abstract: A composite on the surface of a substrate, and a method for producing the composite are disclosed. The composite includes a first coating, reflective beads, and a clear coating. The method for preparing the composite includes the stepwise application of coating compositions and reflective beads. The composite, which is wear-resistant and retroreflective, is useful as a traffic marking.

Abstract: Disclosed is a half mirror reflector having an LED road sign, which can be used as a reflector in the daytime and as both a reflector and a road sign in the nighttime. The half mirror reflector comprises: a support plate attached to a support rod; a half mirror fixed to the support plate; an LED road sign mounted on the support plate under the half mirror and having a plurality of LEDs; a PCB substrate mounted on the support plate under the half mirror to control the operation of the LED road sign; and a solar battery module provided at the upper part of the support rod to generate a voltage for operating the LED road sign and supply the voltage to the PCB substrate.

Abstract: The present invention relates to reflective elements comprising reinforcement particles dispersed within a glass or ceramic core and optical elements partially embedded into the core. The invention further relates to reflective articles, and in particular pavement markings, comprising the reflective elements as well as methods of making the reflective elements.

Abstract: A pavement marker having improved daytime visibility comprises a transparent fluorescent top portion having a top surface and a front edge. Light received by the top surface of the top portion results in light being directed internally through the top portion and emitted from the front edge, thereby providing a daytime signal to drivers of oncoming vehicles. In an alternative embodiment, the top portion can comprise a polymer having in its backbone moieties that either absorb U.V. light or that are capable of undergoing rearrangement to moieties that absorb U.V. light, to provide greater fluorescent durability. The polymer can be present either within the fluorescent top portion or as a U.V. light screening layer on top of the top portion.

Abstract: A highway traffic warning reflector comprises a conventional collapsible shopping bag having highly reflective outer surfaces and support means for maintaining the bag upright when opened and placed with its bottom on the ground adjacent a roadway. The support means includes a rigid rod and weight formed with an opening to receive one end of the rod, and a loop formed adjacent a corner of the bag near its upper open end. To set up the reflector, the bag is opened from its collapsed state, the weight placed in a corner at the bottom of the bag and the rod inserted through the loop and into the opening in the weight. In lieu of a separate rod, stiffening means may be incorporated in the bag structure. One or more support means may be used to maintain the reflective bag upright adjacent a roadway in fall view of oncoming vehicles against wind and turbulence caused by passing vehicles.

Abstract: A first road marking unit with a first base plate is provided with a first light source, and a second road-marking unit with a second base plate is provided with a second light source. A view angle of 0.1≦&agr;≦8° is formed between an interconnecting line, which interconnects the first and the second light sources, and an intersecting line which intersects the interconnecting line. In a view section where the view angle is 0.1≦&agr;≦8°, light beams originating from the first and the second light sources demonstrate a uniform overlap in the view section at a distance a≧40 m from the first light source. Preferably, the distance d between the first light source and the second light source lies in the range from 10 ≦d≦25 cm. The first and the second base plate of the road-marking units are integrated so as to form a base module.

Abstract: A road safety reflector assembly has a pair of oppositely disposed finger cradles with a hollow, reinforceable housing, which has one or two reflectors mounted therein.

Abstract: A road surface light reflector is provided for use in complementary recesses in roads, to indicate the position of centerlines or sidelines on roads in a nocturnal environment by reflecting the light emitted by the headlights of incoming vehicles. The reflector has a discoid main body which is destined to be embedded into a road hole, so as to form a flat exposed top surface therewith, thus not protruding above the road level. The reflector main body is made of rubber, and its top portion comprises small glass particles embedded therein and covering the reflector exposed top surface, for providing a reflective exposed top surface. An alternate embodiment provides glass particles mixed throughout the whole depth of the rubber main body. The rubber main body is fixedly anchored inside its hole through the instrumentality of glue. The reflector according to the invention thus has a low production cost and can be used on roads that are likely to be snow plowed, since it does not protrude above the road level.

Abstract: A railroad signaling device for conveying information to a train engineer comprises a pylon adapted to be secured to a cross tie of the railroad track at a location to be passed over by a train as the train moves down the track. The pylon has front and rear faces that bear indicia fabricated of a retroflective material to reflect the train's headlight back in the direction of the engineer. The pylon is located along the railroad track to be easily detectable by an engineer, especially in fog or inclement weather when the engineer's attention is focused down the track ahead.

Abstract: All-ceramic retroreflective elements which may be used in pavement markings comprising an opacified ceramic core and ceramic optical elements partially embedded into the core.

Abstract: A reflector road sign including a reflector body made of a tempered glass having Fe.sub.2 O.sub.3 content below 0.3%, a casing made to receive the reflector body, a solar lighting system installed in the reflector body, the solar lighting system including a LED (light emitting diode) lamp, a solar cell assembly, a rechargeable battery connected to the solar cell assembly, a control circuit connected to the rechargeable battery and the LED lamp and controlling the LED lamp to operate when the intensity of ambient light drops below a predetermined level, and a reflecting device mounted around the LED lamp to reflect light in desired directions.

Abstract: A novel roadway or similar marker strip having preferably retro-reflective-beaded protuberances in a critical "herringbone"-like pattern that provides a surprising degree of azimuthal uniform omindirectionality of light reflected from the strip.

Abstract: A low profile pavement marker having a glass bead type reflector and an inclined top surface is disclosed. Flanges extend from a peripheral surface on the face and from the rear of the reflector for engagement with epoxy for mounting the pavement marker to the road surface. The front face is angled to permit wiping of the glass beads of the reflector. The shell of the pavement marker may be trimmed to be combined with other shells or other reflectors.

Abstract: A reflective road sign made of a transparent tempered glass consisted of a cylindrical base, and a dome connected above the cylindrical base, the cylindrical base having a peripheral outside wall coated with an inner layer of light-permeable color covering, an outer layer of corrosion resisting coating, and an intermediate layer of reflective metal coating between the inner layer of light permeable color covering and the outer layer of corrosion resisting coating.

Abstract: A reflector road sign includes a reflector body received within a casing, the reflector body being made of a tempered glass and having the lower half part covered with a reflector paper, the casing having a corrugated inside surface covered with a layer of bonding resin for binding the reflector body and a plurality of recesses spaced around the outside wall thereof for binding to the mounting hole on the road by a bonding resin.

Abstract: A traffic marker body defined by a conical spiral arm (16) mounted for collapse into a flat core held in matching recess (22) in a base (12) by means of an automatic locking mechanism including a latch member (24) with friction reducing rollers (34, 36) to facilitate lateral travel along cam guide surfaces (38, 40, 48, 50) into alignment with a latch engaging member including a slot (46) to lock the traffic marker body (14) into a collapsed condition (FIG. 1). The adjacent segments of the spiral arms (16) are spaced sufficiently for air passageways passing through the body (14) for improved stability and to enhance visibility of elongate reflector members (54) woven in and out between adjacent segments of a spiral arm (16) with reflective surfaces on both sides for creation of visual depth and a twinkling effect for enhanced visibility.

Abstract: A highway sign includes a reflective back surface and a biased lenticular lens front surface for reflecting light back in the direction of the original light source. The reflective back surface preferably comprises a plurality of corner cubic reflectors arranged in a regular matrix. The biased lenticular lens front surface comprises arcuate surfaces, or flat surfaces having arcuate indentations, separated by relatively flat surfaces which are substantially perpendicular to the plane of the reflective surface and which form a saw-toothed pattern when seen in profile. Printing can be applied to the lens surface to form traffic control messages or indicia. The biased lenticular front surface diffuses the oncoming light, thus providing a uniform reflective surface. The reflective surface and biased lenticular lens system can be formed from a single integrated sheet of polycarbonate plastic or similar material.