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

Patent Owner(s)

Patent Owner	Address
PIONEER CORPORATION	TOKYO 113-0021

International Classification(s)

• F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
• F21W:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
• H05B:ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE ....
• B60Q:ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE....
• A47G:HOUSEHOLD OR TABLE EQUIPMENT

• 2012 Application Filing Year
• F21V Class
• 2996 Applications Filed
• 2304 Patents Issued To-Date
• 76.91 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kuroda, Kazuo	Yokohama, JP	262	1692
# of filed Patents : 262 Total Citations : 1692

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Patent Citation Ranking

• 0 Citation Count
• F21V Class

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

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Nov 30, 2028

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
May 30, 2017	US,9664374,B2   US9664374B2	GRANTED PATENT AS SECOND PUBLICATION
May 28, 2015	US,20150145408,A1   US20150145408A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent Application No: 2016/0146,348

SHAFT SEAL AND A METHOD OF OPERATING SUCH A SHAFT SEAL

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Abstract

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The invention relates to a shaft seal (1), arranged to seal a rotatable drive shaft (2) from a high pressure area. The shaft seal (1) comprises a shaft seal housing (3), a first seal (10) and a second seal (20), wherein the first and second seals (10, 20) are positioned around the drive shaft (2) at different axial positions. A chamber (4) is created in between the first (10) and second seal (20), wherein the shaft seal (1) comprises a fluid supply (74-78) for supplying a pressurized fluid to the chamber (4). The first seal (10) is a mechanical seal positioned between the high pressure area and the chamber and the second seal (20) is a lip seal.

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Description

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Claims

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