Patent · US Expired

Method for producing concrete roof tiles

US5223200A · kind A · utility

15Cited by
10References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 16, 1991
Grant dateJun 29, 1993
Priority date
Expiry dateJan 16, 2011

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE04D1/04
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method for making concrete roof tiles includes the steps of forming a continuous elongated ribbon or layer of concrete; cutting the continuous layer into a row of spaced end to end ribbon sections having a front edge and a rear edge; precompacting the front edge of one of two adjacent ribbon sections and compacting the precompacted front edge of the other ribbon section.

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