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.
Type:
Grant
Filed:
January 23, 2018
Date of Patent:
August 31, 2021
Assignee:
MICHAEL HÖRAUF MASCHINENFABRIK GMBH UND CO. KG
Abstract: A device for forming a peripheral edge of a cup blank made of paper material, having at least one forming tool, wherein the forming tool is arranged on a tool carrier which is arranged so as to be rotatable about a rotation axis, wherein the rotation axis coincides with a longitudinal centre axis of the cup blank inserted into the device. The forming tool and the tool carrier are configured and arranged so as to travel along a profile, deviating from a circular shape, of the peripheral edge of the cup blank.
Type:
Grant
Filed:
October 8, 2014
Date of Patent:
May 19, 2020
Assignee:
MICHAEL HOERAUF MASCHINENFABRIK GMBH UND CO. KG
Abstract: A method for producing a cup from a flat segment and a pot-like base, including the steps of winding the flat segment onto a winding mandrel, so that there is an overlap in the region of the side edges of the segment, connecting the sections, which adjoin the side edges, in the region of the overlap, so that a conical sleeve is produced, inserting the pot-like base into the conical sleeve, and connecting a circumferential wall of the pot-like base in a substantially liquid-tight manner to an inner face of the sleeve.
Type:
Grant
Filed:
June 5, 2015
Date of Patent:
April 17, 2018
Assignee:
MICHAEL HOERAUF MASCHINENFABRIK GMBH UND CO. KG