Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Thomas Robieu0
Date of Patent
May 24, 2011
0Patent Application Number
124773980
Date Filed
June 3, 2009
0Patent Primary Examiner
Patent 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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