Non-scuffing, non-sticking blow core for stretch blow molding machines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5454707
SERIAL NO

08160414

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The tip of the blow core on a stretch blow molding machine is slightly smaller in diameter than the neck of the preform into which it is inserted such that during both insertion and withdrawal there is no physical contact between the core and the preform. However, when the core tip is in place within the preform and the blow surge commences, a resilient sealing ring around the core tip expands into radial contacting engagement with the preform to seal off what would otherwise be an air escape route. When the air surge terminates, the ring contracts into a dove tail gland around the core tip so as to be substantially flush with the surface of the tip, permitting the core to be withdrawn without contacting the preform.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
R & D TOOL AND ENGINEERING, INC.LEE'S SUMMIT, MO2

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mitchell, Paul W Blue Springs, MO 2 19
Stamper, Paul A Lee's Summit, MO 1 9

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 4362304 Packing arrangement for a floating piston 4 1980
 
TOYO SEIKAN KAISHA, LTD. (1)
* 4790741 Apparatus for preparing heat-set plastic hollow vessel 35 1987
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
NESTLE WATERS MANAGEMENT & TECHNOLOGY (3)
* 7972554 Air cartridge devices and methods of using same 1 2007
* 8337194 Air cartridge devices and methods of using same 0 2011
* 2011/0189,332 AIR CARTRIDGE DEVICES AND METHODS OF USING SAME 0 2011
 
THE JAPAN STEEL WORKS, LTD. (1)
* 5989482 Method and apparatus for manufacturing multi-layer bottle 5 1997
 
Plastipak Packaging, Inc. (1)
* 6273705 Blow-pin having an improved seal assembly 4 1999
 
KRONES AG (4)
7758333 Device for treating containers 3 2008
* 2008/0224,362 DEVICE FOR TREATING CONTAINERS 0 2008
* 8651847 Quick-change blowing nozzle 1 2009
* 2011/0244,069 QUICK-CHANGE BLOWING NOZZLE 0 2009
 
Android Industries of Michigan LLC (1)
* 5895624 Method and apparatus for forming thick wall plastic sheets having formable decorative film layers 16 1997
 
AMCOR GROUP GMBH (1)
* 6277321 Method of forming wide-mouth, heat-set, pinch-grip containers 113 1998
 
EASTMAN CHEMICAL COMPANY (2)
* 8741206 Method and apparatus for stretch blow molding a container 0 2010
* 2011/0193,271 METHOD AND APPARATUS FOR STRETCH BLOW MOLDING A CONTAINER 0 2010
* Cited By Examiner