Lamination for use in transformers or the like and method of making the same
AssigneeE. Blum GmbH & Co.
InventorsEugen Nolle, Hugo W. Geschka
Life of this patent
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Abstract
An inexpensive lamination for use in transformers and/or other static or dynamic electric machines has a metallic layer one side of which is provided with a coat of hardenable adhesive and the other side of which is provided with a coat of insulating material. At least the adhesive coat can contain particles of sand, glass, a metallic oxide or a synthetic plastic material; such particles act as distancing elements between the respective side of the metallic layer and an adjacent metallic layer. The two coats are applied simultaneously between an unwinding station for a web or strip of coherent metallic layers and a winding station for the freshly coated web or strip of coherent metallic layers.
Claims20
A lamination for use in the cores of transformers, chokes, constant voltage regulators, electric motors and like static or dynamic electric machines, comprising a metallic layer having a first side and a second side;
- an insulating coat overlying the first side of said layer;
- and an adhesive coat of hardenable material overlying the second side of said layer.
A method of making a lamination for use in the cores of transformers, chokes, constant voltage regulators, electric motors and like static or dynamic electric machines, comprising the steps of applying to one side of a metallic layer an adhesive coat and simultaneously applying an insulating coat to the other side of the metallic layer.
Dependencies are inferred from the claim text.