US Patent No: 5,369,984

Number of patents in Portfolio can not be more than 2000

Method and apparatus for testing of tank integrity of vehicle fuel systems

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Abstract

A method and apparatus for testing vehicle fuel tank integrity determines the free space in the system by pressurizing the system with a known quantity of gas. The loss in pressure over a test period is then monitored. These data are used to calculate the size of the leak. Alternatively, the free volume is compared to a reference volume and a normalized leak rate computed for comparison to reference values.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GOVERNOR AND COMPANY OF THE BANK OF SCOTLAND, AS AGENTNEW YORK, NY43

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Poracaro, Vincent J Newington, CT 1 18
Rogers, John N Tucson, AZ 5 67
Tedeschi, Rinaldo Newington, CT 4 66

Cited Art

Patent Info (Count) # Cites Year
 
GENERAL MOTORS CORPORATION (1)
4,575,807 Method and apparatus for leak test 11 1983

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
ENVIRONMENTAL SYSTEMS PRODUCTS, INC. (3)
7,168,297 System and method for testing fuel tank integrity 7 2004
7,409,852 System and method for testing fuel tank integrity 2 2006
8,056,397 System and method for testing fuel tank integrity 0 2007
 
FRANKLIN FUELING SYSTEMS, INC. (2)
8,402,817 Method and apparatus for monitoring for leaks in a stage II fuel vapor recovery system 0 2009
8,191,585 Method and apparatus for monitoring for a restriction in a stage II fuel vapor recovery system 1 2009
 
STAR ENVIROTECH, INC. (2)
5,507,176 Evaporative emissions test apparatus and method 43 1994
5,644,072 Evaporative emissions test apparatus and method 36 1995
 
CONTINENTAL AUTOMOTIVE GMBH (1)
6,041,648 Method for avoiding misdetection in a diagnosis of a tank venting system for a motor vehicle 4 1997
 
CUMMINS, INC. (1)
7,194,392 System for estimating model parameters 40 2003
 
DELPHI TECHNOLOGIES, INC. (1)
6,311,548 Method of validating a diagnostic leak detection test for a fuel tank 9 1999
 
FTASTH HOLDINGS LIMITED, (TO BE KNOWN AS OPUS CYPRUS LTD.) (1)
7,347,082 Method and apparatus for testing vehicle fuel system integrity 0 2005
 
HICKOK INCORPORATED (1)
6,298,712 Fuel cap tester 6 1999
 
LUCAS INDUSTRIES LIMITED (1)
5,467,641 Method of and apparatus for detecting fuel system leak 44 1994
 
MERCEDES-BENZ AG (1)
5,509,296 Arrangement for the stationary leak testing of tank venting systems 18 1994
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
5,895,859 Pressure sensor 8 1997
 
SIEMENS VDO AUTOMOTIVE INC. (1)
6,931,919 Diagnostic apparatus and method for an evaporative control system including an integrated pressure management apparatus 3 2001
 
STANT USA CORP. (1)
6,327,898 Fuel system leakage detector 7 2000
 
VDO ADOLF SCHINDLING AG (1)
5,955,658 Device for measuring changes in pressure 1 1997