Laminated guidebar
US4965934A · kind A · utility
8Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1989 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Nov 29, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27B17/025
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A guidebar for powered saws comprises three plates joined by spot welding, where the outer plates are made from a hardenable steel with carbon content over 0.5 percent without boron and the middle plate from a boron alloyed steel with a carbon content lower than 0.25 percent, thus simultaneously achieving high wear resistance at the chain groove, high strength at the spot welds and high resistance to bending.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.