초록 ▼

A clear protective cover on a roadway marker for protecting reflective sheeting located on the marker. The protective cover prevents the reflective sheeting from being displaced from the marker when impacted, for example, by vehicle. The protective cover can be formed from a clear, high-impact stren

A clear protective cover on a roadway marker for protecting reflective sheeting located on the marker. The protective cover prevents the reflective sheeting from being displaced from the marker when impacted, for example, by vehicle. The protective cover can be formed from a clear, high-impact strength, polycarbonate material. A stiffening element located within the roadway marker increases the stiffness and resiliency of the roadway marker. The stiffening element provides more spring to return the roadway marker back to a substantially erect position after being deflected, for example, by a vehicle. The stiffening element can be a formed from a hard material such as PVC and can have the shape of a ball, cylinder, puck, oblong, or other suitable shape.

대표청구항 ▼

1. A roadway warning apparatus, comprising: a base selectively mountable adjacent a roadway;a flexible tubular member rigidly connected to the base;a tubular reflective member coaxially mounted on the flexible tubular member; anda substantially transparent and annular protective sleeve circumscribin

1. A roadway warning apparatus, comprising: a base selectively mountable adjacent a roadway;a flexible tubular member rigidly connected to the base;a tubular reflective member coaxially mounted on the flexible tubular member; anda substantially transparent and annular protective sleeve circumscribing the tubular reflective member, a lower end of the substantially transparent and annular protective sleeve being spaced a selected distance above the base, so as not to impede the bending of the flexible tubular member between the base and the lower end of the substantially transparent and annular protective sleeve. 2. The apparatus according to claim 1, further comprising a stiffening element located within an axial cavity in the flexible tubular member. 3. The apparatus according to claim 1, further comprising a reflective sheet between the tubular reflective member and the substantially transparent and annular protective sleeve. 4. The apparatus according to claim 3, wherein the substantially transparent and annular protective sleeve is approximately the same size and shape as the reflective sheet on the tubular reflective member. 5. The apparatus according to claim 1, wherein the substantially transparent and annular protective sleeve comprises polycarbonate. 6. The apparatus according to claim 2, wherein the stiffening element comprises two side-by-side resilient elongated tubulars having elongated sides that are aligned with an expected direction of impact. 7. The apparatus according to claim 2, wherein the stiffening element comprises an oblong cross-section when the stiffening element is inserted within the flexible tubular member. 8. The apparatus according to claim 2, wherein the stiffening element is free to laterally move within the cavity. 9. The apparatus according to claim 2, wherein the stiffening element has a size that causes the flexible tubular member to radially expand when the stiffening element is installed within the flexible tubular member. 10. The apparatus according to claim 2, wherein the stiffening element is formed from a hard material and comprises at least one of the following: a.) a spherical ball; orb.) a cylinder. 11. The apparatus according to claim 2, wherein the stiffening element is formed from one of the following: a.) plastic;b.) rubber; orc.) polyvinyl chloride. 12. The apparatus according to claim 2, wherein the stiffening element has a total width greater than an inner diameter of the flexible tubular member, so that when installed, the stiffening element is configured to flex into an oblong cross-sectional shape. 13. A roadway warning apparatus, comprising: a base selectively mountable adjacent a roadway;a flexible tubular member rigidly connected to the base;a tubular reflective member coaxially mounted on the flexible tubular member;a substantially transparent and annular protective sleeve circumscribing the tubular reflective member; anda reflective sheet between the tubular reflective member and the substantially transparent and annular protective sleeve,wherein a lower end of the substantially transparent and annular protective sleeve is spaced a selected distance above the base, so as not to impede the bending of the flexible tubular member between the base and the lower end of the substantially transparent and annular protective sleeve. 14. The apparatus according to claim 13, further comprising a stiffening element located within an axial cavity in the flexible tubular member. 15. The apparatus according to claim 13, wherein the substantially transparent and annular protective sleeve is approximately the same size and shape as the reflective sheet on the tubular reflective member. 16. The apparatus according to claim 13, wherein the substantially transparent and annular protective sleeve comprises polycarbonate. 17. The apparatus according to claim 14, wherein the stiffening element comprises two side-by-side resilient elongated tubulars having elongated sides that are aligned with an expected direction of impact. 18. The apparatus according to claim 14, wherein the stiffening element comprises an oblong cross-section when the stiffening element is inserted within the flexible tubular member. 19. The apparatus according to claim 14, wherein the stiffening element has a size that causes the flexible tubular member to radially expand when the stiffening element is installed within the flexible tubular member. 20. The apparatus according to claim 14, wherein the stiffening element is formed from a hard material and comprises at least one of the following: a.) a spherical ball; orb.) a cylinder. 21. The apparatus according to claim 14, wherein the stiffening element is formed from one of the following: a.) plastic;b.) rubber; orc.) polyvinyl chloride. 22. The apparatus of claim 14, wherein the stiffening element has a total width greater than an inner diameter of the flexible tubular member, so that when installed, the stiffening element is configured to flex into an oblong cross-sectional shape.