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

Patent Owner(s)

Patent Owner	Address
BUEHLER GMBH	EICHSTAETTER STRASSE 49 BEILNGRIES 92339

International Classification(s)

• B02B:PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRU....
• B02C:CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERA....

• 1993 Application Filing Year
• B02B Class
• 8 Applications Filed
• 3 Patents Issued To-Date
• 37.50 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Liebing, Stefan	Braunschweig, DE	6	17
# of filed Patents : 6 Total Citations : 17

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Patent Citation Ranking

• 2 Citation Count
• B02B Class

• 0 % this patent is cited more than
• 30 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 No: 5427018

Centrifugal disk for impact mills, air classifiers or the like

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Abstract

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A rotor disc for accelerating and projecting particles radially outwards off the disc toward an encircling impact element includes a rotatable disc base having radial channels for guiding particles radially outwards. The channels are formed of side walls fixed to the disc base with side faces on opposite sides of each channel. The corresponding side faces of each pair of sidewalls are arranged essentially parallel and have, in each pair of opposed faces, at least a first face which a radial chamfer having at least a first and a second chamfer face which are angled to form a groove disposed above the disc base for guiding the particles.

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Description

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Claims

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Legal Events

 

• LAPS2003
• STCH2003
• FP2003
• REMI2003
• FPAY1998
• I1995
• FEPP1994
• AS1993
• F1993
• PD1992

Date	Code	Event	Description
Jul 30, 2003	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES	free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jul 30, 2003	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Jun 27, 2003	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Jun 27, 2003
Jan 15, 2003	REMI	MAINTENANCE FEE REMINDER MAILED
Dec 14, 1998	FPAY	FEE PAYMENT	year of fee payment: 4
Jun 27, 1995	I	Issuance
Dec 09, 1994	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Sep 15, 1993	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIEBING, STEFAN;REEL/FRAME:006732/0305 Owner name: BUEHLER GMBH, GERMANY Effective Date: Sep 15, 1993
Aug 11, 1993	F	Filing
Aug 17, 1992	PD	Priority Date