Patent · US Expired

Guard rail cleanout device

US5127172A · kind A · utility

7Cited by
11References
10Claims
0Family size

Inventors

Key dates

Filing dateSep 27, 1991
Grant dateJul 7, 1992
Priority date
Expiry dateSep 27, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S37/903
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A device including a set of blades for removing dirt from underneath guard rails, with blades extending outward from the guard rail clean-out device in a cantilevered fashion to allow a user to extend the blades underneath and beyond the guard rails to remove dirt and gravel located under the guard rail while operating the device from the roadway.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.