Patent · US Expired

Article, in particular a building covering plate, and process for manufacturing said article

US5779957A · kind A · utility

3Cited by
3References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 29, 1996
Grant dateJul 14, 1998
Priority date
Expiry dateJul 29, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/24777
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

An article comprising a hydrated matrix containing 100 parts by weight of cement and around 80-120 and preferably around 100 parts by weight of sand with a grain size of less than 1 mm, and alkali-resistant reinforcing glass fibres in a proportion of around 3-4 wt %, preferably 3.5 wt %, relative to the hydrated matrix. The article, which has a density no greater than 1.85, may be used as a covering panel for buildings, and particularly as an imitation slate covering panel.

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