US Patent 8221052 Turbo-molecular pump
Patent 8221052 was granted and assigned to Shimadzu Corp. on July, 2012 by the United States Patent and Trademark Office.
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Patent abstract
Disclosed is a turbo-molecular pump, which comprises a rotor including a first cylindrical body formed with a part of a plurality of rotating blades arranged in multistage, a second cylindrical body integrally connected to an outer peripheral region of a downstream end of the first cylindrical body and formed with the remaining rotating blades, and a stress-releasing protrusion extending from the downstream end of the first cylindrical body along a direction of a rotation axis of the rotor. The turbo-molecular pump of the present invention can reduce a stress in the downstream end of the first cylindrical body.
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US Patent 08221052 Turbo-molecular pump US Patent 8221052 Turbo-molecular pump
Infobox
Patent Number
0822105200
Patent Number
822105200
Edits on 27 Apr, 2023
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
082210520
Date of Patent
July 17, 2012
0Patent Application Number
121173920
Date Filed
May 8, 2008
0Patent Primary Examiner
Edits on 24 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
082210520
Date of Patent
July 17, 2012
0Patent Application Number
121173920
Date Filed
May 8, 2008
0Patent Primary Examiner
Edits on 14 Dec, 2021
Golden AI
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US Patent 08221052 Turbo-molecular pump
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
08221052
Date of patent
July 17, 2012
Patent application number
12117392
Date Filed
May 8, 2008
Patent primary examiner
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