Chainsaw
US9713880B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2014 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | Feb 6, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27B17/0008
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chainsaw includes a body housing, an elongated guide bar projecting forward from the body housing, a saw-chain mounted on the periphery of the guide bar for rotation, an electric motor mounted within the body housing for rotating, and a top handle provided on an upper portion of the body housing above the guide bar and extending in a fore-and-aft direction. A plurality of rechargeable battery packs is mounted on the body housing as a source of power supply for the electric motor. The battery packs are mounted to the body housing in such a manner that a center of gravity of the chainsaw observed from the back side is positioned in a two times extent of lateral width of a gripe portion of the top handle at both sides of a vertical centerline of the gripe portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.