Patent · US Active

Storm drain anchored grate cover

US8002977B2 · kind B2 · utility

10Cited by
54References
18Claims
0Family size

Inventors

Key dates

Filing dateJan 31, 2011
Grant dateAug 23, 2011
Priority date
Expiry dateJan 31, 2031

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE03F5/0404
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A drain grate filter assembly having a filter sheet member, wedging anchors and mechanical fasteners, whereby the assembly is connected to a drain grate by inserting wedging anchors into the apertures of the grate, placing the filter sheet member atop the grate and inserting fasteners through the filter sheet member and into the wedging anchors.

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