| Patent Number |
Title Of Patent |
Date Issued |
| 7175791 |
Process for producing dish-shaped moldings of thermoplastic material |
February 13, 2007 |
| A process for the production of dish-shaped moldings or hollow bodies of thermoplastic material comprises the step of producing an at least approximately tubular preform by the extrusion of thermoplastic material. The preform is axially divided to form at least one single-layer web of |
| 6488884 |
Process and apparatus for producing hollow bodies from thermoplastic material |
December 3, 2002 |
| In a process and apparatus for producing hollow bodies from thermoplastic material by blow molding of preforms using a closing support structure having at least first and second blow molding molds, a common drive means engages a drive plate and a first carrier plate which carries a mold |
| 5409647 |
Process for the production of hollow bodies from thermoplastic material |
April 25, 1995 |
| In that process for the production of hollow bodies from thermoplastic material by extrusion blow molding in which discontinuously extruded preforms are expanded in a blow molding mold, at least during that part of the filling phase which is typical of such a process, for an extrusion |
| 5368462 |
Blow molding apparatus for the production of a hollow body of thermoplastic material |
November 29, 1994 |
| An apparatus for the production of hollow bodies from thermoplastic material by blow molding using a blow molding mold which includes at least first and second mold portions to enclose a generally tubular extruded preform which is expanded within the mold under the effect of an increased |
| 5250238 |
Process for blow molding hollow bodies with symmetric mold portion movement |
October 5, 1993 |
| A process and apparatus for the production of hollow bodies from thermoplastic material by means of blow molding uses a blow molding mold which includes at least first and second mold portions to enclose a generally tubular extruded preform which is expanded within the mold under the |
| 5143681 |
Extrusion blow molding of multilayer hollow bodies with layer disturbances limited to flash |
September 1, 1992 |
| In a process and apparatus for the discontinuous production of preforms for producing hollow bodies from thermoplastic material, the wall of which is a laminate having at least first and second layers, by extrusion blow molding, the flow of material for forming the laminate is guided wit |
| 5141698 |
Extrusion blow molding of multilayer hollow bodies with layer disturbances limited to flash |
August 25, 1992 |
| In a process and apparatus for the production of hollow bodies from thermoplastic material, having a wall of a laminate formed by at least first and second layers, by means of extrusion blow molding, a preform having a wall structure with a suitable number of layers is first produced |
| 5110519 |
Process for minimizing disturbance of multi-layer laminate material in extrusion of multi-layer |
May 5, 1992 |
| In a process and apparatus for the production of hollow bodies from thermoplastic material, the walls of the hollow bodies are of a laminate structure having at least first and second layers, by means of extrusion blow molding, the pressure within the extrusion head and more particularly |
| 5014873 |
Barrel of thermoplastic material |
May 14, 1991 |
| A barrel of thermoplastic material has at least one connecting portion having an emptying opening and arranged in a trough-like depression in the upper end part of the barrel. In the region of the connecting portion the barrel has at least one inclined surface which extends between the u |
| 4304543 |
Apparatus for the manufacture of hollow bodies |
December 8, 1981 |
| A moulding apparatus having a two-part mould movable between a receiving station at which thermoplastics synthetic material is extruded into the mould and a release station at which a moulded hollow body is removed from the mould. This hollow body is then supported by a blowing and calib |
| 3954373 |
Apparatus for the manufacture of hollow bodies |
May 4, 1976 |
| A moulding apparatus having a two-part mould movable between a receiving station at which thermoplastics synthetic material is extruded into the mould and a release station at which a moulded hollow body is removed from the mould. This hollow body is then supported by a blowing and calib |
| 3942677 |
Closures for vessels |
March 9, 1976 |
| A closure adapted to be applied to a neck of a vessel or container so as to seal a comparatively wide mouth in said neck has a rim or skirt which is divided up into a plurality of sections by slits between the sections depending from a lid portion of the closure and a stressing or tensio |
