Method and apparatus for manufacturing a stop and lock shoulder for a blind fastener sleeve
US4473914A · kind A · utility
26Cited by
6References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49943
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for forming a hollow sleeve for a blind fastener including the steps of forming a sleeve blank to have an enlarged sleeve head and a through bore having a radially inwardly extending shoulder forming portion, deforming the material on the shoulder forming portion to move axially toward the sleeve head and radially inwardly from the reduced diameter bore portion and substantially deforming the material away from the sleeve head and back towards the contour of the reduced diameter bore portion to form a sleeve stop shoulder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.