Blow Molding Containers
Blow molding is used especially for molding containers such as canisters or bottles. “They are used in particular in the stretch blow molding technique where bottles and the like are manufactured for the food industry and especially for the beverage industry. These methods and devices are characterized by very high consumption of blowing media because they work with pressures of up 40 bar. Therefore, there will be repeated attempts to utilize the blow molding media as optimally as possible through various methods and devices to minimize consumption.”
(Finger and Asbrand, US Patent 7,803,311, 9/28/2010)
"It is known in the art that the blow molding operations depend upon the future utilizations of the container. For example, should the container be filled with a hot liquid (e.g. with drinks such as tea, pasteurized fruit juice, etc.), it is necessary to heat the mold in order to subject the container to a thermal treatment during the blow molding, thereby making it resistant to thermal shocks which will occur during the filling. Such a blow molding and the corresponding container are called "HR" (heat resistant) in the common terminology."
(Tonga and Lamande, US Patent 7,811,079, 10/12/2010)
Blow Molding
Blow Molding Applications
Blow Molding Bottles
Blow Molding Molds for Containers
Blow Molding PET Containers
Processing
Recent US Patents
11/29/2011
8,066,921
Simultaneously blow molded container and closure
Yourist, Cargile and Perone of Graham Packaging, Pennsylvania, developed a method of producing a container and a closure by blow molding a body together, and separating the closure portion from the container portion. A container and/or a closure produced according to the method are also disclosed, as well as an intermediate product for producing a container and a closure. (RDC 12/5/2011)
11/22/2011
8,061,540
Multi-layered, blow molded container and process for molding the same
Toyoda of Yoshino Kogyosho, Japan prevented containers from performance deterioration, such as exposure of the recycled material at the neck and reduced strength of the pinch-off portion, as caused by a high ratio of recycled material used as the middle layer. There is provided a multi-layered blow-molded container molded from cylindrical multi-layered parison, wall of the container comprising at least an outer layer, an inner layer, and a middle layer, wherein the outer and inner layers are made of a same synthetic resin, while the middle layer is made of a recycled material consisting primarily of the synthetic resin used for the outer and inner layers. This container is characterized in that it has either middle-layer excluded zones or a thin middle-layer zone. These zones are provided at a predetermined range along the direction in which the parison is extruded. (RDC 11/28/2011)
10/11/2011
8,033,809
Machine for forming containers
Christiansen of Krones, Germany, developed a blow molding for containers with a drivable rotor, a heating module containing a drivable conveyor and feeding the blowing module, and a main drive which is associated with both the blowing and heating modules and which is adapted to be selectively operated either in a continuous mode or in a clocked mode. A power train includes a decoupling unit which is arranged between the rotor and the conveyor and which is selectively actuable, and an auxiliary drive, which can be switched on selectively, is provided for the power train component that is separated from the main drive in the actuated condition of the decoupling unit. (RDC 10/13/2011)
2/22/2011
7,891,963
Manufacturing apparatus of resin container
Tanaka et al of Toyo Seikan Kaisha, Japan produced a resin using two extruders and blow molding a plastics container with a coating. (RDC 8/30/2011)
2/15/2011
7,887,743
Method and apparatus for blow-molding containers
Linke et al of KHS Coroplast, Germany, have developed a process for blow molding containers where the blow molding pressure is controlled blow molding machine. (RDC 8/26/2011)
7,887,742
Process and apparatus for the blow molding of containers using wall-thickness measurement of the molded article
Linke et al of KHS Coroplast, Germany, have developed a process for blow molding containers by heating the parisons with superposed radient heaters and continuous monitoring of the wall thickness. (RDC 8/26/2011)
1/18/2011
7,871,683
Blow molded container
Dunlap, Sanford and Darr of Plastipak Packaging. Michigan,developed a blow molded container with a trimmed nonround opening. (RDC 8/5/2011)
11/2/2011|
7,824,166
Installation for blow-molding hollow bodies
Mie and Souffes of Sidel Participations, France has developed a blow-molding installation for manufacturing thermoplastic hollow bodies by blow-molding or stretch-blow-molding containers. This installation consists of a double-acting nozzle actuator (1) with two stages in series, equipped with two pistons. (RDC 2/22/2011)
9/28/2010
7,803,311
Air recirculation in a blow molding process
Finger and Asbrand of Krones, Germany has developed an air recirculation system for blow molded containers. In the process the parison is preblown by a low pressure blow which is completed by a high pressure blow. At the end of the blowing process, the low pressure values opens letting the high pressure air into the low pressure system. (RDC 12/8/2010)