Process for inserting points in a mandrel
US4437221A · kind A · utility
4Cited by
6References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 2, 1981 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | Dec 2, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53657
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for inserting points (38) on a mandrel (36) and a machine for performing this process. A working head (40) simultaneously ensures the insertion of a point and the making of a perforation (112) in the mandrel by means of a punch (94). The perforation is made in the same longitudinal row as the inserted point and towards the front with respect to the latter, in such a way that it is subsequently possible to guide a point following a rotation of one or more turns of the mandrel. The invention is applicable to the production of members or bodies of revolution made from three-dimensional material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.