Hole cutter with minimum tooth pitch to blade body thickness ratio
US8573907B2 · kind B2 · utility
45Cited by
69References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/8957
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hole cutter for cutting a work piece, such as a wood and/or metal work piece, has a substantially cylindrical blade body defining a wall thickness within the range of about 0.032 inch to about 0.038 inch, and a cutting edge formed on one end of the blade body including a plurality of teeth defining an average tooth pitch within the range of about 3.5 TPI to about 5.5 TPI for cutting the work piece and forming chips therefrom. The substantially cylindrical blade body and cutting edge define an average tooth pitch to blade body thickness ratio of at least about 110.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.