Implement

Details Implement Implement

2007-12-25

2007-12-25

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Cooling

Air-cooled

C123S19800E

Reexamination Certificate

active

11166697

ABSTRACT:
A manually operated implement comprising a housing for accommodating a drive motor that drives a tool. A fan wheel is disposed in the housing and is driven by the drive motor. A fan wheel cover covers the fan wheel toward the outer side of the housing. Ribs are disposed on the outer surface of the fan wheel cover and span an intake opening of the fan wheel cover in the vicinity of the fan wheel. Beyond the intake opening, the ribs form channels, and upper faces of the ribs that face away from the outer surface of the fan wheel cover form an intake face that in a second area of the ribs is disposed transverse to the outer surface of the fan wheel cover.

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