US Patent No: 5,493,844

Number of patents in Portfolio can not be more than 2000

Packaging container for receiving bulk material, and method of and apparatus for making a flat packaging container as well as ventilating and sealing the filled packaging container

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Abstract

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A packaging container of the type being flat when empty for receiving bulk material includes a moisture-proof, thermoplastic layer connectable along a longitudinal seam which is defined by longitudinal edges and having a ventilation zone spaced in parallel relationship to the longitudinal edges and closable through heat sealing or welding after feeding bulk material into the interior and ventilating the bulk material. The ventilation zone of the packaging container is formed by initially leaving one of the longitudinal edges of the longitudinal seam open. Only after the packaging container is filled and the contents are allowed to ventilate is this initially open seam area closed by a welding or heat sealing process.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HAVER & BOECKEROELDE12

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Combrink, Alois Oelde, DE 19 25

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERFLEX GROUP, INC., THE (1)
4,959,946 Film wrapped receptacle 3 1989
 
Other [Check patent profile for assignment information] (1)
5,035,103 Self sealing vacuum vent and dome process 13 1990

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
HUHTAMAKI RONSBERG, ZWEIGNIEDERLASSUNG DER HUHTAMAKI DEUTSCHLAND GMBH & CO. KG (2)
8,240,546 Film packaging having tamper-evident means 3 2005
8,468,782 Method for producing a bottle-like or tubular container, particularly a tubular bag, comprising a sealed-in bottom, and a correspondingly produced tubular bag 0 2005
 
BISCHOF + KLEIN GMBH & CO. KG (1)
8,083,411 Packaging in the form of a bag 0 2008
 
BLUEPRINT HOLDING B.V. (1)
6,668,522 Method for compacting bags 2 2002
 
DOW GLOBAL TECHNOLOGIES LLC (1)
8,263,206 Layered film compositions, packages prepared therefrom, and methods of use 0 2006
 
HOOD PACKAGING CORPORATION/EMBALLAGE HOOD CORPORATION (1)
6,883,964 Multiwall paper bag 4 2002
 
HUHTAMAKI RONSBERG ZWEIGNIEDERLASSUNG DER HUHTAMAKI DEUTSCHLAND GMBH & CO. (1)
8,153,216 Packaging with passage regions and sealing tool for production thereof 0 2002
 
MONDI AG (1)
8,097,313 Multilayer bag of paper 0 2007
 
REIMANN, GUENTER (1)
8,371,752 Plastic bag with overpressure relief 0 2011
 
RKE SE (1)
7,927,015 Plastic bag with overpressure relief 1 2005
 
ZWEIGNIEDERLASSUNG DER HUHTAMAKI DEUTSCHLAND, GMBH & CO. KG (1)
8,056,209 Tubular, especially can-shaped, receptacle for the accommodation of fluids, a method of manufacture and use 7 2008