Metal working – Method of mechanical manufacture – Electrical device making
Patent
1987-09-04
1988-06-28
Kozma, Thomas J.
Metal working
Method of mechanical manufacture
Electrical device making
336198, 336207, 336230, 336233, H01F 4102, H01F 2726, H01F 2730
Patent
active
047529997
ABSTRACT:
A spherical transformer and process for forming same is set forth. Hollow, hemispherical elements are rotated to enable a cooperating cutting tool to impart a helical impression therein. An adhesive is sprayed into the interiors of both hemispheres and thereafter powdered metal, such as stainless steel, is directed thereon to form a sheet-like core that when both hemispheres are joined to provide an uninterrupted metal core with said hemisphere. A primary winding is inserted into the aforenoted grooves about one hemisphere and a secondary winding is positioned into the helically cut grooves in said second hemisphere. The thusly formed transformer is positioned on a base for a stability thereof.
REFERENCES:
patent: 1546424 (1925-07-01), Wood
Gilden Leon
Kozma Thomas J.
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Gary Fultrow
I believe this invention was first documented in 1925 and I don't believe it has any current relevance.
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