Motor-driven tool having an air filter
US4693735A · kind A · utility
9Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1986 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Dec 19, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M35/024
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air filter for a motor-driven tool such as a portable motor-driven chain saw includes a prefilter through which aspirated air flows into a chamber partly defined by a cover that can be secured to the housing of the motor-driven tool. From this space, the air flows through a main air filter to the carburetor of the motor. The main air filter and the prefilter are configured as a one-piece double filter unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.