US 2019/0291909 A1Published application

Sealing device and method for sealing a lid material to sealing areas of a blister web or of a blister cap

AssigneeKoch Pac-Systeme GmbH

InventorsJuergen BITZER, Michael DRESSLE, Christian ROTHFUSS

Life of this patent

Estimating the term…

Loading patent…

Abstract

A sealing device for sealing a lid material to sealing areas of a blister web comprises a first, heated sealing tool and a second sealing tool arranged opposite each other and movable relative to each other. A first intermediate element of elastic material is attached to the first sealing tool on a side facing the second sealing tool, and a second intermediate element of thermally-insulating material is attached to the second sealing tool on a side facing the first sealing tool. The first and second sealing tools are movable relative to each other between an opened position and a closed position, in which at least sections of the first intermediate element and of the second intermediate element exert pressure on each other. In the closed sealing position, the first intermediate element rests on the lid material and the second intermediate element rests on lands of the blister web.

Claims21

Dependent claims

A sealing device for sealing a lid material to sealing areas of a blister web or of at least one blister cap, wherein the sealing areas of the blister web or of the at least one blister cap surround at least one pocket for holding a product, the sealing device comprising:

a first, heated sealing tool;
a second sealing tool, which comprises at least one depression for receiving at least one pocket of the blister web or the at least one blister cap, wherein the first sealing tool and the second sealing tool are arranged opposite each other;
a first intermediate element of an elastic material, which is attached to the first sealing tool on a side facing the second sealing tool;
a second intermediate element of a thermally-insulating material or a material of poor thermal conductivity, which is different from the material of the first intermediate element, wherein the second intermediate element is attached to the second sealing tool on a side facing the first sealing tool;
wherein at least one of the first sealing tool with the first intermediate element and the second sealing tool with the second intermediate element is movable relative to the other sealing tool between an opened position, in which the first and second sealing tools are a certain distance apart to accommodate the blister web or the at least one blister cap and at least one section of the lid material, and a closed sealing position, in which at least sections of the first intermediate element and of the second intermediate element exert pressure on each other,
wherein the first sealing tool and the second sealing tool are arranged and structured in such a way that, in the closed sealing position, the first intermediate element rests on the lid material and the second intermediate element rests on lands of the blister web or of the at least one blister cap.

3 more elements

A method for sealing a lid material to sealing areas of a blister web or of at least one blister cap, wherein the sealing areas of the blister web or of the at least one blister cap surround at least one pocket for holding a product, the method comprising:

providing a sealing device comprising:
a first, heated sealing tool;
a second sealing tool, which comprises at least one depression to receive at least one pocket of the blister web or of the at least one blister cap, wherein the first sealing tool and the second sealing tool are arranged opposite each other;
a first intermediate element consisting of an elastic material, which is attached to the first sealing tool on a side facing the second sealing tool;
and
a second intermediate element consisting of a thermally-insulating material, which is different from the material of the first intermediate element, wherein the second intermediate element is attached to the second sealing tool on a side facing the first sealing tool;
arranging a section of the blister web or the at least one blister cap and at least one section of the lid material between the first sealing tool and the second sealing tool while the first and second sealing tools are arranged in an opened position;
actuating the sealing device to bring the first sealing tool and the second sealing tool relative to each other into a closed sealing position, in which the first intermediate element rests against the lid material and the second intermediate element rests against lands of the blister web or of the at least one blister cap, as a result of which the lid material is pressed against the lands of the blister web or of the at least one blister cap in an area of corresponding sections of the first and second intermediate elements;
heating the first sealing tool and the first intermediate element during or after the step of actuating the sealing device, thus heating the lid material to seal the lid material to the lands of the blister web or of the at least one blister cap;
and
actuating the sealing device to bring the first sealing tool and the second sealing tool relative to each other back into the opened position.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/361,593Filed 22 Mar 2019
Priority: EP 18 163 643.223 Mar 2018
Published: 26 Sep 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

B65B 51/14
Applying or generating heat or pressure or combinations thereof: by reciprocating or oscillating members
B29C 65/18
By heating, with or without pressure: using heated tools
B29C 66/112
Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint…: single…
B29C 66/131
Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of…:…