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| Number | Title | Issue Date |
| 4489669 | Marker A marker comprises an elastic visible element connected to a base. The visible element extends upwardly from the base so that it may be seen from a distance. The visible element is elastically deformable to allow a machine, such as a mower, to pass over t... | 12/25/1984 |
| 4460161 | Guard rail and reflective strip A guard rail and reflective strip is comprised of a modified guard rail having additional compound curved surfaces into which a reflective strip is secured. The reflective strip is preferably formed of an elastic material having a reflective surface backe... | 07/17/1984 |
| 4445803 | Resilient marker An economical reflective roadway marker having a substantially vertically disposed reflective assembly, a series of cantilevered protective flaps arranged to flex and cover reflective surfaces and an end base plate assembly by which the marker is attached... | 05/01/1984 |
| 4411553 | Retro-reflecting globules for road surface marking Improved retro reflecting globules of vertically asymmetrical configuration and of geometry such as to provide at least another asymmetry in plan view, to provide an optimum light response to light beams impinging under differing zenithal and azimuthal an... | 10/25/1983 |
| 4402628 | Pavement marker A hardened steel pavement marker having a base with raised protective cross ribs and reflectors thereon, and a depending skirt for embedment in the pavement, the skirt being scalloped and having holes therein.... | 09/06/1983 |
| 4362425 | Road marker An economical retro-reflective roadway marker of high strength plastic materials having a reflective top assembly having a resilient portion that is curved to raise the reflective top assembly and a recessed base assembly or roadway depression. The reflec... | 12/07/1982 |
| 4358217 | Highway traffic lane and road edge reflectors Reflectors for indicating, for example, the dividing line between traffic lanes and road edges include an above-the-road housing portion that has a spherical contour rising gradually from the road in all directions. Impact, resistant solid metal shoulders... | 11/09/1982 |
| 4340319 | Pavement marker Disclosed herein is a pavement marker for engagement with an underlying roadway for providing a marking visible from an oncoming vehicle on the roadway surface. The pavement marker comprises a lens member of light-transmitting synethetic resin including a... | 07/20/1982 |
| 4284365 | Reflective lane marker for roadways This invention describes a reflective lane marker for roads which is mounted so that the upper surface of the marker is flush with the road surface. It is so arranged as to reflect light from headlights back in the same general direction from which it com... | 08/18/1981 |
| 4237191 | Bonded road studs A non-depressible bonded road stud is rectangular in plan and comprises a body portion having a substantially flat upper face and four substantially upright side faces sloping downwardly from the side edges of the upper face onto a basal plinth portion. T... | 12/02/1980 |
| 4234264 | Multi-directional marking device of the type to be used on pavement surfaces This is a pavement marking device that is incorporated into pavement structures, more specifically into pavements subject to abuse from snow removal or snow clearing apparatus, and on pavements where vehicles travel in one direction or in multiple directi... | 11/18/1980 |
| 4234265 | Light transmitting roadway marker A roadway lane marker has a translucent body to receive light from a vehicle's headlights on its back window, the light being transmitted through the marker body to illuminate its front face. A plurality of such markers, implanted at spaced intervals alon... | 11/18/1980 |
| 4232979 | Pavement marker Disclosed herein is a pavement marker for engagement with an underlying roadway for providing a marking visible from an oncoming vehicle on the roadway surface. The pavement marker comprises a lens member of light-transmitting synthetic resin including a ... | 11/11/1980 |
| 4224002 | Highway delineator A reflective roadway delineator for reflecting incident light directed thereon by an oncoming vehicle back to the vehicle, the delineator being capable of being mounted upon either a roadway barrier having a planar longitudinally extending surfaces thereo... | 09/23/1980 |
| 4221498 | Roadside barrier reflector An improved roadside reflector assembly which when mounted alongside a road is continuously visible by retroreflected light by the driver of a vehicle moving along the road at night-time within a viewing angle of from about 0° to 60° relative thereto, w... | 09/09/1980 |
| 4195945 | Snowplowable pavement marker and base member therefor A low-profile snowplowable pavement marker includes a metal base member having two arcuate-bottom keel members interconnected by an arcuate-bottom support member, the upper surfaces of the keel members respectively defining inclined ramps from a plane at ... | 04/01/1980 |
| 4155666 | Snowplowable pavement marker and base member therefor A low-profile snowplowable pavement marker includes a base member generally cylindrical in outline and adapted to be installed in a drilled recess in the pavement, and having a support surface disposed in use below the level of the roadway surface for sup... | 05/22/1979 |
| 4147447 | Snowplowable pavement marker and base member therefor A snowplowable pavement marker (which may be of low profile) includes a metal base member having two arcuate-bottom keel members interconnected by an arcuate-bottom support member, the upper surfaces of the keel members respectively defining inclined ramp... | 04/03/1979 |
| 4145152 | Temporary highway reflector cover The invention is a disposable, easily-removable masking cap for pavement-mounted highway reflectors to permit the taring or other re-surfacing of the roadway while protecting the reflectors so that they need not be graded off prior to resurfacing.... | 03/20/1979 |
| 4136990 | Highway marker A highway marker comprises a metallic body of rectangular shape adapted for nesting and enclosure within a recess formed in a roadway. Said body has upright side and end walls and a flat bottom wall and with opposed downwardly and inwardly inclined inner ... | 01/30/1979 |
| 4135839 | Device to prevent vehicles from passing a temporarily speed-reduced part of a road with high speed A device to induce vehicles passing a temporarily speed-reduced road section from passing said road section with high speed, including elongated flexible elements, preferably of rubber, placed on the road surface, said elements having beam members extendi... | 01/23/1979 |
| 4127348 | Road studs The body of a road stud has oppositely directed presented faces each of which includes a central portion in which reflective elements are disposed and outer protective skirt portions which are inclined to the horizontal at a smaller acute angle than the c... | 11/28/1978 |
| 4123181 | Roadside barrier marker system An improved roadside marker system wherein each individual reflector means is continuously visible by the driver of a vehicle moving along the roads surface at night-time from an angle of 0° to 60° where 0° extends substantially parallelly to a tangent... | 10/31/1978 |
| 4069281 | Prefabricated roadway marking strip material and method for producing same A method of producing a prefabricated roadway marking strip material adapted to be applied on and secured to selected areas of a prepared roadway pavement so as to form thereon a traffic regulating indicium comprised of defined signalling surfaces having ... | 01/17/1978 |
| 4050834 | Internally powered traffic control device A traffic control device in which a solid state light source such as a light emitting diode (LED) is energized by a power supply such as a battery pack contained within the device. The battery life and conspicuousness of the device are enhanced by providi... | 09/27/1977 |
| 4008973 | Reflective pavement marker A reflective pavement marker in the form of a marker button, such as a ceramic button, to be secured to a vehicle roadway with a given normally horizontal axis of the button aligned lengthwise of the roadway and having one or more reflectors each facing i... | 02/22/1977 |
| 4000882 | Contrasting marker panel for highway guardrails and the like The marker panel is preferably formed internally of force crushable material and has side and rearward surfaces thereof conforming to surfaces of the U-shaped recess of a conventional metal guardrail so that the marker panel may be preferably adhesively s... | 01/04/1977 |
| 3980410 | Pavement marker with snow plow frame A pavement marker having a relatively fragile pavement marker housing and a snow plow frame for guiding snow plows and similar implements over the pavement marker housing. Retrodirective reflector elements may be included in the pavement marker housing. T... | 09/14/1976 |
| 3975108 | Snow plowable pavement marker A snow plowable pavement marker including a body having a base adapted to be secured to the surface of a roadway in such a manner that the fore and aft axis of the body extends parallel to the direction of travel of vehicles. A pair of snow plow ramp sect... | 08/17/1976 |
| 3971623 | Roadway marker A pavement marker having a shell-like body with a chamber formed therein, the body being at least partially of transparent material to form a transparent outer wall for the chamber so that the interior of the chamber is visible through the transparent out... | 07/27/1976 |
| 3958891 | Aggregate elements for improving anti-skid and visibility properties of traffic regulating markings on roadway pavements There are described elements designed to be partially embedded and secured in a marking layer on a roadway pavement. Each element consists of an aggregate including a multiplicity of tiny hard and sharp particles, such as crystalline chips, and/or light r... | 05/25/1976 |
| 3954346 | Safety strip An improved marker for road and pavement, and which is easier to be seen in night-time; the marker comprising a strip of durable rubber material secured by rubber based cement to the road or pavement surface, and the upper side of the rubber strip having ... | 05/04/1976 |
| 3938903 | Highway roadmarker with studded bottom There is provided a highway lane divider and roadmarker, adapted to be affixed to a pavement surface. Said marker characterized by a planar base, said base having protruding downwardly therefrom a multiplicity of studs arranged in spaced relationship, and... | 02/17/1976 |
| 3936208 | Reflector stud A road marker stud of cat's eye is made of a rubber housing and is to be adhered to the road surface. The housing is provided with surface channels or cavities which divide it into substantially independent flex zones. At least one reflector element is housed ... | 02/03/1976 |
