Multi-position, operator-carried, four-cycle engine
US6863043B2 · kind B2 · utility
8Cited by
18References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2003 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Dec 22, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2201/021
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A power tool having a rotary implement driven by a four-cycle engine. The engine crankcase is through a passageway which extends through a camshaft to a valve chamber. The rotating shaft member inhibits the escape of lubricating oil when the engine is running while permitting a lubricating oil mist to circulate through the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.