Patent · US Expired

Form tie

US4034950A · kind A · utility

4Cited by
3References
3Claims
0Family size

Inventor

Key dates

Filing dateSep 20, 1976
Grant dateJul 12, 1977
Priority date
Expiry dateSep 20, 1996

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE04G17/0721
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

An article of manufacture for fixing the sides of a form with respect to each other is disclosed, which article consists of a unitary elongated metal member of generally Z-shape configuration having generally parallel end portions joined by an intermediate diagonal portion. Specific structural features of the article are described which provide improved resistance to vertical and horizontal shear forces acting on the form sides in addition to resisting transverse forces which tend to move the form sides toward or away from each other.

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