Die structure for forming a serrated rod
US3960473A · kind A · utility
54Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1975 |
| Grant date | Jun 1, 1976 |
| Priority date | — |
| Expiry date | Feb 6, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/526
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pultrusion die for forming elongated, serrated, fiber-reinforced articles is disclosed. The die comprises a die block having a cylindrical cavity therethrough and a plurality of cylindrical rods arranged in a cylindrical array about the sidewall of the cavity. Each rod contacts two adjacent rods at parallel lines of contact which are located along the length of each rod and which define inwardly facing cylindrical arcs of less than 180.degree. so that the rods lock each other against nonaxial movement. The inwardly facing arcs together define a serrated die cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.