Hole saw blade
US7658136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Jan 4, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9367
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hole saw has a cup shaped body with a base, and a cylindrical wall with an extending cutting edge. An arbor extends from base. A plurality of teeth are formed on the cutting edge. The teeth having a repeating first and second tooth form. The first tooth form has a rake face and relief face defining the cutting edge. The rake face and relief face are at a desired angle. A first gullet is continuous with the first rake face so that it has a desired depth. The second tooth form has a second rake face and second relief face. The faces are on a desired angle. A second gullet is continuous with the second rake face providing a second tooth height. The second tooth height is greater than the first tooth height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.