US Patent No: 7,077,742

Number of patents in Portfolio can not be more than 2000

Pressure relief valve and method of forming the same

ALSO PUBLISHED AS: 20050227607
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Importance

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Abstract

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A pressure relief valve (10) includes a housing (12) with a peripheral side wall defining at least one central airflow passage and at least one flap valve element (14). The housing (12) and the flap valve element (14) have a molded connection for enabling rotation of the flap valve element relative to the housing between a closed condition overlying the at least one central airflow passage (24) to prevent airflow from atmosphere (21) into the passenger compartment (19) and an open condition permitting airflow out of the passenger compartment of the vehicle to atmosphere. The at least one flap valve element (14) moves from the closed condition to the open condition in response to differential pressure between the passenger compartment (19) and atmosphere (21). A method of manufacturing the pressure relief valve (10) includes the steps of molding a housing (12) with a first plastic material; molding a valve element (14) with a second plastic material different from the first plastic material and forming a connection between the valve element and the housing simultaneous with the molding of a latter one of the valve element and the housing.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TRW AUTOMOTIVE U.S. LLCLIVONIA, MI135

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blake, III Thomas E South Lyon, MI 8 51
Stevenson, Jordan Walled Lake, MI 2 4

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
5,295,478 Mouth-to-mask resuscitator 26 1993
* 5,738,087 Aerosol medication delivery system 26 1996
 
DRAFTEX INDUSTRIES LIMITED (1)
* 5,759,097 Air extractor valve 6 1996
 
CHRYSLER GROUP LLC (1)
6,135,543 Air exhaust and water management system for a motor vehicle 3 1999
 
BLUE WATER AUTOMOTIVE SYSTEMS, INC. (2)
6,026,852 Pressure relief valve and method of manufacturing the same 8 1998
6,210,266 Pressure relief valve and method of manufacturing the same 17 1999
 
Schawk, Inc (1)
5,617,897 Nonreturn valve for medical fluid technologies 30 1994
 
NISSAN MOTOR CO., LTD. (1)
4,546,695 Louvered grille unit and method of its manufacture 8 1982
 
GM GLOBAL TECHNOLOGY OPERATIONS, INC. (1)
5,715,782 Composite molded butterfly valve for an internal combustion engine 39 1996
 
RESMED LIMITED (1)
* 6,119,723 Apparatus for varying the flow area of a conduit 10 1998
 
Wegu-und Kunststoffwerke GmbH & Co. KG (1)
* 6,132,308 Forced ventilation system for motor vehicles 7 1999
 
TRW ADVANCED PLASTIC TECHNOLOGIES GMBH & CO. KG (1)
5,298,215 Method for injection molding objects of at least two parts 20 1993
 
TRW INC. (6)
5,105,849 Body relief valve flap 21 1991
5,419,739 Flap-type pressure relief valve and method of forming the same 12 1993
5,355,910 Dual component flap 19 1993
5,601,117 Flap-type pressure relief valve 15 1995
* 5,727,999 Vehicle ventilation valve 8 1997
* 5,904,618 Pressure relief valve 18 1997
 
LIGON BROTHERS MANUFACTURING COMPANY (1)
6,357,473 One way anti-backflow valve 12 2000
 
TOYODA GOSEI CO., LTD. (1)
* 6,648,749 Quarter vent duct 3 2002
 
GENERAL MOTORS CORPORATION (1)
5,492,205 High cooling air flow rate brake rotor 17 1994
 
WEIR VALVES & CONTROLS USA INC. (1)
* 5,305,787 Disk valve with improved disk mounting 47 1993
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
8,986,086 Insert for an opening 0 2009
 
WEGU HOLDING GMBH (1)
* 8,528,678 Integrally molded plastic part comprising a door snapping into a closed position without play 0 2013
 
TRW AUTOMOTIVE U.S. LLC (1)
* 2012/0003,907 VEHICLE VENT VALVE ASSEMBLY 0 2010
 
ITW AUTOMOTIVE PRODUCTS GMBH & CO. KG (1)
8,328,609 Ventilation assembly for the pressure relief of the interior of an automobile 2 2007
 
TRW Automotive Electronics & Components GmbH & Co. KG (1)
* 2009/0104,866 Ventilation device 1 2008
 
BROAN-NUTONE LLC (1)
D626644 Vent 1 2008
* Cited By Examiner

Maintenance Fees

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 18, 2018
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Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
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