Machine for automatically removing the protective coverings from temporary raised pavement markers (TRPMs)
US6685389B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H1/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Apparatus for removing protective coverings from temporary raised pavement markers (TRPM) fixedly secured upon roadway surfaces comprises a platform, and a plurality of toothed implements disposed beneath the platform for encountering and removing the protective coverings mounted upon the upstanding vertical reflective portions of the temporary raised pavement markers (TRPM). The toothed implements are mounted upon a chain which is driven by a motor mounted upon an upper surface portion of the platform, and a blower is also mounted upon the upper surface portion of the platform. An exhaust duct, fluidically connected to the intake side of the blower, passes through a suction port defined within the platform so as to be fluidically connected to the underside of the platform, and in this manner, the removed protective coverings of the temporary raised pavement markers (TRPM) may be removed from the roadway surface and conveyed to a suitable debris collection bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.