Annular part and a method and apparatus for forming an annular part
US11219935B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2019 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Feb 27, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2230/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forming an annular part includes forming a conical or frusto-conical preform with at least one open end, initiating an actuation means to cause relative coaxial movement only between a punch, a clamping means and a gripping means, thereby clamping a large diameter end of the preform in the clamping means and gripping a second small diameter end of the preform in the gripping means and the external surface of the punch to engage the internal surface of the preform, and causing relative co-axial movement between the gripping means and the punch so that the portion of the wall of the preform between the punch and the gripping means is formed over the leading edge of the punch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.