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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
DUFFIELD KENDALL	MOLINE IL

International Classification(s)

• F23H:GRATES

• 2021 Application Filing Year
• F23H Class
• 9 Applications Filed
• 4 Patents Issued To-Date
• 44.45 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Duffield, Kendall	Moline, US	1	0
# of filed Patents : 1 Total Citations : 0
Felton, Frank	Madison, US	1	0
# of filed Patents : 1 Total Citations : 0
Powell, Ellie	Moline, US	1	0
# of filed Patents : 1 Total Citations : 0

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• 0 Citation Count
• F23H Class

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• 2 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Nov 18, 2026
7.5 Year Payment	$3600.00	$1800.00	$900.00	Nov 18, 2030
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Full Text

US Patent Application No: 2016/0025,062

WATER TURBINE

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Abstract

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A water turbine, such as a pump turbine, includes an impeller and a guide wheel that are adjustable. By adjusting the angles of the impeller blades or the guide vanes, such as beyond a range of 180 degrees and 90 degrees, respectively, the water turbine may be adjusted to switch between power generation and pumping, and for tidal flow.

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Description

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Claims

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