Method of manufacturing a woodworker's holdfast
US7571631B2 · kind B2 · utility
2Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2006 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Dec 14, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21K1/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A semi-automated method for manufacturing a woodworker's holdfast tool from an unheated length of mild steel rod includes forging a flattened contact surface at one end of the rod and subsequently bending the rod upwardly away from the contact surface and forming the crook portion in an automated wire forming machine configured to exceed the desired working angle during cold forming of the crook portion to account for the resilience of the rod when the bending force is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.