US Patent 8186689 Sealing device for gear chamber
Patent 8186689 was granted and assigned to Makita on May, 2012 by the United States Patent and Trademark Office.
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Patent abstract
In a gear chamber 10, a sealing member 21 is attached to a rotary shaft 12 of an electric motor 11, and a grease return part 21a is provided on this sealing member 21. Thus, grease raked by a helical gear 12a is blown off diagonally forward with respect to a radial direction as a result of a centrifugal force, and it is possible to prevent the grease from leaking out of a ball bearing 20.
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Patent Inventor Names
Masamichi Miyazawa0
Masayoshi Hiraiwa0
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US Patent 08186689 Sealing device for gear chamber US Patent 8186689 Sealing device for gear chamber
Infobox
Patent Number
081866890
Patent Number
81866890
Edits on 23 Apr, 2023
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
081866890
Date of Patent
May 29, 2012
0Patent Application Number
125886120
Date Filed
October 21, 2009
0Patent Primary Examiner
Edits on 14 Dec, 2021
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US Patent 08186689 Sealing device for gear chamber
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
08186689
Date of patent
May 29, 2012
Patent application number
12588612
Date Filed
October 21, 2009
Patent primary examiner
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