Patent · US Expired

Reinforcing struts for roofing tiles

US4219981A · kind A · utility

15Cited by
7References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 11, 1978
Grant dateSep 2, 1980
Priority date
Expiry dateSep 11, 1998

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE04D12/00
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A roof is provided with a plurality of reinforcing struts spanning tile battens. The reinforcing struts are of top hat cross-section and are provided with a stepped locating tab at one end to enable a sequence of struts to be laid in stepped formation to accurately locate side channels on stepped roofing tiles.

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