Power tool having a transmission vent

Details Power tool having a transmission vent Power tool having a transmission vent

2011-05-24

2011-05-24

Nash, Brian D (Department: 3721)

Tool driving or impacting

Miscellaneous

C173S217000, C173S002000, C173S016000, C173S048000

Reexamination Certificate

active

07946353

ABSTRACT:
A power tool, such as a hammer drill and/or a chiseling hammer, includes a lubricated transmission arranged in a sealed transmission box. The transmission box is in fluid connection with the atmosphere via a venting channel. A sealing element is arranged in the venting channel. The sealing element cooperates with the venting channel to create a meandering pathway for air to pass through the venting channel so that leakage of lubricant between the sealing element and the venting channel is at least substantially prevented.

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European Search Report; Application No. 08010192.6-1262; AEG Electric Tools GmbH.

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