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US Patent 11965522 Impeller

Patent 11965522 was granted and assigned to Delta Electronics on April, 2024 by the United States Patent and Trademark Office.

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Contents

Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Applicant
Delta Electronics
Delta Electronics
1
Current Assignee
Delta Electronics
Delta Electronics
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
119655221
Patent Inventor Names
Chung-Yuan Tsang1
Chao-Fu Yang1
Pei-Han Chiu1
Chien-Ming Lee1
Date of Patent
April 23, 2024
1
Patent Application Number
175867861
Date Filed
January 28, 2022
1
Patent Citations
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US Patent 10539149 Impeller and fan
1
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US Patent 10662973 Reversible flow fan
1
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US Patent D910834 Impeller for a fan
1
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US Patent D938009 Fan hub
1
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US Patent 11333166 Propeller fan and refrigeration cycle apparatus
1
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US Patent D938011 Fan blade
1
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US Patent 6994523 Air blower apparatus having blades with outer peripheral bends
1
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US Patent 7559744 Propeller fan for heat exchanger of in-vehicle air conditioner
1
...
Patent Primary Examiner
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Long T Tran
1
CPC Code
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F05D 2240/307
1
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F05D 2240/305
1
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F05D 2240/306
1
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F05D 2240/303
1
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F04D 19/002
1
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F05D 2240/304
1
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F05D 2250/294
1
Patent abstract

An impeller includes a hub and a plurality of blades. The blades are arranged around the hub, and each blade includes a leading edge, a blade tip, a root portion, a trailing edge, a windward side and a leeward side. The windward side including a first turning point and a second turning point, a first vertical height difference is formed from the blade tip to the first turning point, and a second vertical height difference is formed from the first turning point to the second turning point, and the first vertical height difference is greater than the second vertical height difference. The impeller apparently reduces the noise.

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