US Patent 8485934 Multi-ratio transmission
Patent 8485934 was granted and assigned to ZF Friedrichshafen on July, 2013 by the United States Patent and Trademark Office.
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Patent abstract
A multi-ratio transmission comprising four planetary gearsets, eight rotary shafts and six shifting elements including first, second, third and fourth clutches and first and second brakes. The shafts either directly couple or selectively couple, via the shifting elements, the gearsets to each other or a housing of the transmission so as to implement nine forward gears and one reverse gear.
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Patent Inventor Names
Christian Sibla0
Gerhard Gumpoltsberger0
Gert Bauknecht0
Josef Haupt0
Peter Ziemer0
Stefan Beck0
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US Patent 08485934 Multi-ratio transmission US Patent 8485934 Multi-ratio transmission
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Patent Number
084859340
Patent Number
84859340
Edits on 25 Mar, 2023
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
084859340
Date of Patent
July 16, 2013
0Patent Application Number
133910360
Date Filed
August 11, 2010
0Patent Primary Examiner
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US Patent 08485934 Multi-ratio transmission
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
08485934
Date of patent
July 16, 2013
Patent application number
13391036
Date Filed
August 11, 2010
Patent primary examiner
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