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

Patent Owner(s)

Patent Owner	Address
VOITH PATENT GMBH	SANKT PÖLTENER STRASSE 43 HEIDENHEIM D-89522

International Classification(s)

• D03D:WOVEN FABRICS; METHODS OF WEAVING; LOOMS
• D21F:PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER ....

• 2010 Application Filing Year
• D03D Class
• 158 Applications Filed
• 96 Patents Issued To-Date
• 60.76 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hack-Ueberall, Petra	Reutlingen, DE	11	56
# of filed Patents : 11 Total Citations : 56
Westerkamp, Arved H	Dettingen/Erms, DE	19	77
# of filed Patents : 19 Total Citations : 77

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Patent Citation Ranking

• 8 Citation Count
• D03D Class

• 7.55 % this patent is cited more than
• 13 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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
November 20, 2012	US,8312900,B2   US8312900B2	GRANTED PATENT AS SECOND PUBLICATION
September 23, 2010	US,20100236741,A1   US20100236741A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9267590

Hydrostatic drive

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Abstract

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A hydraulic additional drive includes a hydraulic or having working ports configured to be connected to a pump via a high pressure branch and a low pressure branch. The hydraulic motor further includes a purging port to which a feed pressure is configured to be applied to set a 'free-wheel mode' while the working ports are connected to a tank. The pressure at the purging port is limited to a comparatively low value between the feed pressure and the tank pressure by a pre-charging valve integrated into the hydraulic motor. The pre-charging valve is arranged in a free-wheel duct which hydraulically connects the purging port to one of the working ports.

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Description

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Claims

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Claims data not available

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Legal Events

 

• MAFP2021
• FEPP2018
• MAFP2018
• FEPP2018
• I2014
• STCF2014
• P2012
• F2011
• AS2011
• PD2010

Date	Code	Event	Description
Oct 27, 2021	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8
Mar 20, 2018	FEPP	FEE PAYMENT PROCEDURE	free format text: SURCHARGE FOR LATE PAYMENT, LARGE ENTITY (ORIGINAL EVENT CODE: M1554)
Mar 20, 2018	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551) year of fee payment: 4
Feb 26, 2018	FEPP	FEE PAYMENT PROCEDURE	free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.)
Jul 15, 2014	I	Issuance
Jun 25, 2014	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jun 21, 2012	P	Published
Dec 20, 2011	F	Filing
Dec 14, 2011	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NOTHEN, LUCIANO PICCINI;GAVA, FLAVIO SILVIO;MASCARELLO, LEDIMARA;AND OTHERS;REEL/FRAME:027421/0230 Owner name: WHIRLPOOL CORPORATION, MICHIGAN Effective Date: Dec 14, 2011
Dec 20, 2010	PD	Priority Date