Double cutting edged saw blade for hand-held reciprocating power saws
US6401585B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Mar 10, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Mar 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9319
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A saw blade for in-line reciprocating hand-held power saws has first and second types of cutting teeth adapted to cut materials of disparate hardness disposed on its first and second oppositely disposed cutting edges. Saw blades according to the invention are fabricated in a die having first and second longitudinally oriented sections. Band saw blade material having a back edge and a factory cutting edge having teeth adapted to cut a first type of material is placed in the die. When closed under pressure, the first die section cuts the back edge of the band saw blade material in the desired second edge of the saw blade. The second die section cuts a desired type of cutting teeth on a previously shaped second cutting edge of a blade. A power saw equipped with the saw blade cuts a first component of material having a first hardness using the first cutting edge of a blade. Reversing the saw or alternately reversing the blade in the chuck of the saw orients the blade in a desired manner to cut a second component of material having a second hardness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.