Motor-driven tool having an air filter

Details Motor-driven tool having an air filter Motor-driven tool having an air filter

1986-12-19

1987-09-15

Spitzer, Robert

Gas separation

Combined or convertible

Involving ash tray

30381, 55483, 55500, 55529, B01D 4610

Patent

active

046937358

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.

REFERENCES:
patent: 3525373 (1970-08-01), Kobayashi
patent: 3552103 (1971-01-01), Smith
patent: 3678973 (1972-07-01), Loop
patent: 3680608 (1972-08-01), Emmerich et al.
patent: 3698455 (1972-10-01), Frederickson et al.
patent: 3994067 (1976-11-01), Hazzard et al.
patent: 4010544 (1977-03-01), Siman
patent: 4382333 (1983-05-01), Nagashima et al.
patent: 4393589 (1983-07-01), Barkhult
patent: 4594083 (1986-06-01), Hiraizumi
patent: 4626266 (1986-12-01), Sasaki

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