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

Patent Owner(s)

Patent Owner	Address
DANA CORPORATION	A CORP OF VA TOLEDO OH

International Classification(s)

• B60H:ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, V....

• 2005 Application Filing Year
• B60H Class
• 202 Applications Filed
• 81 Patents Issued To-Date
• 40.10 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Cripps, Arthur B JR	Murray, KY	2	1
# of filed Patents : 2 Total Citations : 1

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Patent Citation Ranking

• 0 Citation Count
• B60H Class

• 0 % this patent is cited more than
• 19 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent Application No: 2006/0258,281

Air duct with annular rolling portion

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Abstract

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An air duct is constructed with a rolling annular portion that is desirably formed of a series of hemi-toroid planar-cut surfaces. The rolling annular portion may include an inner portion and an outer portion constructed of different materials. The rolling annular portion permits relative movement within the air duct while minimizing disturbances in airflow.

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Description

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Claims

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