Multiple zone heating of molds

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4621995
SERIAL NO

06789197

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A molding machine has a valve assembly that includes means for selectively heating or cooling a mold by controlling flow of gas through an array of gas impingement jets disposed adjacent the backside of a mold surface to regulate the temperature over respective first and second areas of the mold surface. Gas heating and cooling circuits include two drive cylinder regulated plate valves for supplying gas at the gas impingement jet nozzles associated with the mold.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Ex-Cell-O CorporationTROY, MI1

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wersosky, John M Dover, NH 4 79

Cited Art Landscape

Patent Info (Count) # Cites Year
 
DAVIDSON RUBBER COMPANY, INC. (1)
* 4389177 Modular slush molding machine 22 1981
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Minnesota Mining and Manufacturing Company (1)
* 4848348 Coated films 47 1986
 
Peguform-Werke GmbH (1)
* 5221539 Apparatus for the production of molded skins and bodies of plastic material 37 1992
 
Other [Check patent profile for assignment information] (1)
* 2015/0224,676 System and Method for Articulated Impingement Mold Heating 0 2015
 
INTERNATIONAL AUTOMOTIVE COMPONENTS GROUP NORTH AMERICA, INC. (1)
* 2005/0274,821 Heated spray applicator 0 2004
 
MAGNA SEATING INC (1)
6210614 Process of making decorative automotive interior trim articles with cast integral light-stable covering containing invisible tear seam 20 1998
 
Roto Plastics, Inc. (1)
* 6409954 Method of making a rotary molded plastic member with variable wall thickness 9 1999
 
TEXTRON AUTOMOTIVE COMPANY INC. (1)
6632525 Material and method for manufacturing plastic parts 2 2000
 
BAYER MATERIALSCIENCE LLC (3)
* 5654102 Material for manufacturing plastic parts 5 1995
* 5525284 Process for manufacturing plastic parts 17 1995
* 5998030 Material for manufacturing plastic parts 7 1997
 
DAVIDSON TEXTRON INC. (1)
* 5106285 Air and water delivery system for a shell mold 22 1991
 
COLLINS & AIKMAN AUTOMOTIVE INTERIORS, LLC (1)
* 5173228 Method for forming a 360 degree skin handle 6 1991
 
COLLINS & AIKMAN PRODUCTS, LLC (1)
* 4890995 Mold apparatus for forming shaped plastic shells 9 1989
 
DAIDSON TEXTRON INC., (1)
* 4851177 Method for forming shaped plastic shells 9 1987
 
COLLINS & AIKMAN PRODUCTS CO. (1)
* 5445510 Mold heating apparatus 10 1993
 
ANSALDO ENERGIA IP UK LIMITED (1)
* 6615588 Arrangement for using a plate shaped element with through-openings for cooling a component 9 2001
 
KONAL ENGINEERING AND EQUIPMENT INC. (2)
* 6019590 Slush molding apparatus 8 1997
6284182 Molding process employing heated fluid 7 1999
 
GRUPO ANTOLÍN-IRAUSA, S.A. (4)
* 6013210 Process for making decorative automotive interior trim articles with cast integral light stable covering 34 1998
6656596 Decorative automotive interior trim articles with cast integral light stable covering and process for making the same 9 1999
6958190 Decorative automotive interior trim articles with cast integral light stable covering and process for making the same 1 2003
7247382 Decorative automotive interior trim articles with cast integral light stable covering and process for making the same 3 2005
 
Ex-Cell-O Corporation (2)
* 4683098 Apparatus for reducing waste in a plastic mold 19 1986
* 4874565 Plastisol slush process 3 1988
 
MAGNA INTERIOR SYSTEMS INC. (2)
* 6082989 Slush molding apparatus 4 1998
6461561 Slush molding process 1 2000
 
TOYOTA JIDOSHA KABUSHIKI KAISHA (1)
* 4867660 Foam slush molding apparatus 7 1986
 
Essef Corporation (1)
* 5356589 Method and apparatus for forming rotationally cast tank liner having an end fitting 20 1993
 
NORTHROP GRUMMAN SYSTEMS CORPORATION (3)
* 7100656 System and method for curing composite material 1 2002
* 7063759 System and method for curing composite material 0 2004
* 2005/0056,632 System and method for curing composite material 1 2004
* Cited By Examiner