Method of making a surface with a sharp edge
US5230259A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1991 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Nov 4, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12993
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of making a structure having a plurality of serrations on a surface is provided wherein each serration is positioned at a specific location along the surface, has first and second sides with specific lengths, and has effectively zero radius internal and external corners. In detail, the method comprising the steps of: providing a plurality of sheets of material having opposed principal surfaces, each said sheet having a thickness equal to the specific thickness of one of the first sides of the serrations; stacking said plurality of sheets of material in a staggered relationship such that said thicknesses of said sheets of material are in an order corresponding to the order of the first sides of the serrations and the distance between the ends of the adjacent ends of said sheets of material are in an order corresponding to the second sides of the serrations; and joining said stacked plurality of sheets of material together forming a joined stack with at least one end having a serrated surface thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.