Patent application number | Description | Published |
20080217188 | LINE ARRANGEMENT IN A PLASTIC CONTAINER - The invention concerns a hollow body of plastic material, in particular a fuel tank, which was obtained by extrusion blow molding, having at least one line which is stationarily laid in its interior, wherein the hollow body is distinguished in that the line is at least region-wise joined in material bonded relationship to the inside wall of the hollow body. | 09-11-2008 |
20090045542 | PROCESS FOR THE PRODUCTION OF HOLLOW BODIES OF THERMOPLASTIC MATERIAL - The invention concerns a process for the production of hollow bodies of thermoplastic material. In the process according to the invention preforms in web or band form of plasticized material are shaped in a multi-part tool forming a mold cavity comprising two outer molds and at least one central mold which perform an opening and closing movement relative to each other. The central mold is provided with at least one component holder which can be moved of and into the tool plane defined by the central mold. In a first step the component holder is fitted with at least one insert portion, then the insert portion is placed by means of the component holder against the inside wall of an outer mold. In a further step introduction and shaping of the preforms within the tool is effected in a two-stage procedure, wherein firstly the preforms are respectively applied against a contour forming a part of the mold cavity by means of increased pressure and/or reduced pressure and shaped and then the intermediate products forming respective parts of the hollow body are joined together to form a finished product. | 02-19-2009 |
20090047375 | MOLD TOOL FOR THE PRODUCTION OF EXTRUSION BLOW MOLDED PRODUCTS - The invention concerns a mold tool for the production of extrusion blow molded products, comprising at least three mold portions ( | 02-19-2009 |
20090102102 | PROCESS FOR THE PRODUCTION OF HOLLOW BODIES OF THERMOPLASTIC MATERIAL BY EXTRUSION BLOW MOLDING - The invention concerns a process for the production of hollow bodies of thermoplastic material by extrusion blow molding. In the process according to the invention continuous extrusion of at least two preforms in web form of plasticized material is effected by means of a plurality of extrusion devices. The preforms are jointly shaped to form a hollow body in the still plastic condition, that is to say in the first heat, within a multi-part tool forming a mold cavity. In that case a wall thickness profile is imparted to at least one preform during the extrusion operation independently of the respective other preform by continuous nozzle gap adjustment during the extrusion operation. | 04-23-2009 |
20100304943 | FUEL TANK OF THERMOPLASTIC MATERIAL WITH FUNCTIONAL INSTALLATION FITMENTS FOR AIR INTAKE AND VENTING, FOR FUEL TAKE-OFF AND THE LIKE - The invention concerns a fuel tank of thermoplastic material, comprising functional installation fitments for air intake and venting, for fuel take-off or the like, which is distinguished in that at least one functional installation fitment is connected to the inside wall of the container in material-bonded relationship in such a way that the functional installation fitment defines with the container wall a volume separated from the filling volume of the container in such a way that the inside wall of the container serves directly as a boundary wall of said volume. | 12-02-2010 |
20110129560 | Nozzle For The Production Of Hollow Bodies Of Thermoplastic Material By Extrusion Blow Molding - The invention concerns a nozzle for the production of hollow bodies of thermoplastic material by extrusion blow molding. According to the invention, continuous extrusion of at least two preforms in web form of plasticized material is effected by means of a plurality of extrusion devices. The preforms are jointly shaped to form a hollow body in the still plastic condition, that is to say, in the first heat, within a multi-part tool forming a mold cavity. In that case, a wall thickness profile is imparted to at least one preform during the extrusion operation independently of the respective other preform by continuous nozzle gap adjustment during the extrusion operation. | 06-02-2011 |
20110315308 | METHOD FOR PRODUCING HOLLOW BODIES FROM THERMOPLASTIC MATERIAL AND DEVICE FOR CARRYING OUT THE METHOD - The invention relates to a method for producing hollow bodies from thermoplastic material, comprising the molding of at least two sheet-like, web-shaped preforms of plasticated thermoplastic material in a multi-part tool forming a cavity to form two complementary shells, and also the joining together of the shells to form a substantially closed hollow body, wherein the preforms are brought between open parts of the tool which each have part-cavities, the parts of the tool are then closed against a tool separator arranged between the preforms, and the preforms are inserted into the part-cavities with the use of differential pressure and molded. In a subsequent separate method step, the tools are reopened and internal components of the hollow body to be produced are fastened to the shells. Finally, the shells are joined together by reclosing the tools to form a closed hollow body. | 12-29-2011 |
20120013048 | BLOW MOLDING TOOL AND METHOD FOR PRODUCING EXTRUSION BLOW MOLDED PLASTIC ARTICLES - A blow molding tool ( | 01-19-2012 |
20130277373 | PROCESS FOR THE PRODUCTION OF A FUEL TANK AND FUEL TANK - The invention concerns a process for the production of a container, in particular a fuel tank of thermoplastic material, by extrusion blow molding, wherein during shaping of the container within a multi-part tool the container is provided with at least one connecting element passing through the wall thereof, wherein with at least a part of the connecting element as a lost shaping male die the wall of the container is displaced from one side into a tool placed on the oppositely side of the container wall and removed. | 10-24-2013 |
20140178522 | METHOD FOR PRODUCING HOLLOW BODIES FROM THERMOPLASTIC MATERIAL AND DEVICE FOR CARRYING OUT THE METHOD - The invention relates to a method for producing hollow bodies from thermoplastic material, comprising the molding of at least two sheet-like, web-shaped preforms of plasticated thermoplastic material in a multi-part tool forming a cavity to form two complementary shells, and also the joining together of the shells to form a substantially closed hollow body, wherein the preforms are brought between open parts of the tool which each have part-cavities, the parts of the tool are then closed against a tool separator arranged between the preforms, and the preforms are inserted into the part-cavities with the use of differential pressure and molded. In a subsequent separate method step, the tools are reopened and internal components of the hollow body to be produced are fastened to the shells. Finally, the shells are joined together by reclosing the tools to form a closed hollow body. | 06-26-2014 |