Foil shield for a vacuum pump with a high-speed rotor

United States of America Patent

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Mar 19, 2013
Grant Date
May 25, 2006
app pub date
Nov 14, 2005
filing date
Nov 24, 2004

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Expired

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Abstract

A foil shield for covering at least one opening of a suction flange of a vacuum pump includes at least one member formed of a material having a relative permeability μ_rgreater than 1,000.

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Patent Owner(s)

Patent Owner	Address
PFEIFFER VACUUM GMBH	BERLINER STRASSE 43 D-35614 ASSLAR

International Classification(s)

F04B:POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Klabunde, Frank	Asslar, DE	1	4
Stoll, Tobias	Angelburg-Goennern, DE	13	46

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Foil shield for a vacuum pump with a high-speed rotor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11274799

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PATENT NO	8398383
APP PUB NO	20060110271A1
SERIAL NO	11274799
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 19, 2013	US,8398383,B2 US8398383B2	GRANTED PATENT AS SECOND PUBLICATION
May 25, 2006	US,20060110271,A1 US20060110271A1	FIRST PUBLISHED PATENT APPLICATION

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11274799

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