Conductive seal as well as a method and apparatus for its production
AssigneeNeuhaus Elektronik GmbH
InventorAlexander Neuhaus
Life of this patent
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Abstract
A conductive seal that is formed on a first sealing surface by extruding an elastically curing material intermixed with conductive particles is in addition intermixed with magnetic particles. After applying the material to the first sealing surface, its cross section profile is expanded to an adjustable level towards a second sealing surface and/or sealing rims are molded to it by a magnetic force from an electromagnetic plate. The magnetic and conductive particles are preferably concentrated in the marginal sections, particularly due to magnetic forces that act on the sealing roving in the extrusion process.
Claims16
A method for producing a conductive seal made of an elastically curing material intermixed with conductive particles that is directly applied from an extruder onto a first sealing surface while still in its plastic state, characterized in that magnetic particles are intermixed with the sealing material prior to or after extrusion and that, after the sealing material has been applied onto a first sealing surface (5) and subsequent curing of just a surface layer, a magnetic field is generated over a specific period of time using an electromagnetic plate (7) placed above the extruded sealing roving (1′) and the sealing roving (1′) that adheres to the sealing surface (5) is stretched towards the electromagnetic plate (7) and molded into the finished seal (1) due to the action of the magnetic forces on the magnetic particles.
Dependencies are inferred from the claim text.