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

Patent Owner(s)

Patent Owner	Address
SOCIETE ANONYME DITE EUROPEAN GAS TURBINES SA	38 AVENUE KLEBER 75116 PARIS

International Classification(s)

• F15D:FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENC....

• 1993 Application Filing Year
• F15D Class
• 19 Applications Filed
• 10 Patents Issued To-Date
• 52.64 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Gandia, Liberto	Blevilliers, FR	4	63
# of filed Patents : 4 Total Citations : 63
Poux, Jacques	Grenoble, FR	3	23
# of filed Patents : 3 Total Citations : 23
Rouget, Frederic	Valdoie, FR	2	11
# of filed Patents : 2 Total Citations : 11

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Patent Citation Ranking

• 10 Citation Count
• F15D 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: 5462088

Gas turbine exhaust diffuser

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Abstract

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The present invention relates to an exhaust diffuser for a gas turbine, the diffuser being designed to be inserted downstream from a last expansion stage constituted by an outlet duct of circular cross-section containing a central bulb. The diffuser includes a flared transition duct having an inlet end of circular cross-section identical to the cross-section of the outlet duct of the last stage, an outlet end of square cross-section, and four fixed fins disposed inside the ducts close to respective corners of the square cross-section for directing the exhaust gases toward the corners of the square cross-section.

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Description

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Claims

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Claims data not available

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Legal Events

 

• SULP2007
• FPAY2007
• REMI2007
• FPAY2003
• FEPP2002
• FPAY1999
• FEPP1998
• FEPP1996
• FEPP1995
• I1995
• STCF1995
• F1993
• AS1993
• PD1992

Date	Code	Event	Description
Jun 12, 2007	SULP	SURCHARGE FOR LATE PAYMENT	year of fee payment: 11
Jun 12, 2007	FPAY	FEE PAYMENT	year of fee payment: 12
May 16, 2007	REMI	MAINTENANCE FEE REMINDER MAILED
Mar 18, 2003	FPAY	FEE PAYMENT	year of fee payment: 8
Dec 04, 2002	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Apr 07, 1999	FPAY	FEE PAYMENT	year of fee payment: 4
Dec 02, 1998	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Dec 08, 1996	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Nov 02, 1995	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Oct 31, 1995	I	Issuance
Oct 19, 1995	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Oct 25, 1993	F	Filing
Aug 16, 1993	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:POUX, JACQUES;GANDIA, LIBERTO;ROUGET, FREDERIC;REEL/FRAME:006736/0191 Owner name: SOCIETE ANONYME DITE: EUROPEAN GAS TURBINES SA, FR Effective Date: Aug 16, 1993
Oct 26, 1992	PD	Priority Date