Apparatus and method for producing containers from paper material or paper-like material, and container
AssigneeMichael HöRauf Maschinenfabrik GmbH Und Co. KG
InventorUwe Messerschmid
Life of this patent
Estimating the term…
Abstract
An apparatus for producing containers from paper or paper-like material. The container has a lateral surface made of a wound sheet-like segment, of which segment edges arranged on longitudinal sides overlap and form a region of overlap, and a pan-like termination element. The lateral surface and the termination element are connected to one another in an essentially liquid-tight manner by a skirt, and at least one pressing ram is provided for pressing and sealing the skirt, the pressing ram subjecting the skirt to essentially radially directed pressure. The pressing ram has a radially projecting protrusion in a portion provided for the purpose of acting on a boundary portion of the region of overlap of the lateral surface of the skirt.
Claims16
An apparatus for producing a container of sheet material, the container including a sheet segment wound about a longitudinal axis of the container to form a lateral wall of the container having segment edges disposed along opposite longitudinally extending sides of the sheet segment in overlapping relation with one another to form an overlap region of the container, and a pan-shaped termination element connected to the lateral wall in a liquid-tight manner by a skirt, the segment edges adjacent one end of the container each forming part of the skirt, one of the segment edges at the skirt being an inner segment edge located inwardly from and covered by the other segment edge at the skirt, the other segment edge being an outer segment edge, the outer segment edge being disposed radially outwardly from the inner segment edge to form a step on the skirt which forms part of a boundary portion of the overlap region of the container, the apparatus comprising at least one pressing ram disposed and configured to press and seal the skirt of the container, the pressing ram having first and second spaced-apart terminal edges and a pressing surface extending between and interconnecting the first and second terminal edges, the pressing surface being disposed to apply radially-directed pressure to the skirt of the container, the pressing surface having a single protrusion projecting radially outwardly beyond an entire remaining portion of the pressing surface disposed between the first and second terminal edges of the pressing ram such that the protrusion applies a pressure to the boundary portion of the overlap region of the container which is greater than pressure applied to the skirt by the entire remaining portion of the pressing surface.
An apparatus for producing a container of sheet material, the container including a sheet segment wound about a longitudinal axis of the container to form a lateral wall of the container having segment edges disposed along opposite longitudinally extending sides of the sheet segment in overlapping relation with one another to form an overlap region of the container, and a pan-shaped termination element connected to the lateral wall in a liquid-tight manner by a skirt, the segment edges adjacent one end of the container each forming part of the skirt, one of the segment edges at the skirt being an inner segment edge located inwardly from and covered by the other segment edge at the skirt, the other segment edge being an outer segment edge, the outer segment edge being disposed radially outwardly from the inner segment edge to form a step on the skirt, the apparatus comprising at least one pressing ram disposed and configured to press and seal the skirt of the container, the pressing ram comprising first and second spaced-apart terminal edges and a pressing surface extending between and interconnecting the first and second terminal edges, the pressing surface being disposed to apply radially-directed pressure to the skirt of the container, the pressing surface including a single protrusion projecting radially outwardly beyond an entire remaining portion of the pressing surface disposed between the first and second terminal edges of the pressing ram such that the protrusion applies a pressure to the step of the skirt of the container which is greater than pressure applied to the skirt by the entire remaining portion of the pressing surface.
Dependencies are inferred from the claim text.