Laminated ballast core

Details Laminated ballast core Laminated ballast core

1985-02-08

1986-07-22

Andrews, Melvyn J.

Inductor devices

Core joint structure

336234, H01F 2724

Patent

active

046022368

ABSTRACT:
A laminated ballast core is provided comprising a plurality of nearly identically shaped lamination pieces. Each lamination piece is of a general L-shape and has a notch at the upper outside corner of the base section and a tab extending from the upper outside corner of the shorter side section. About one-half of the lamination pieces are aligned adjacent each other to form an upper lamination section. The other half of the lamination pieces are aligned adjacent each other to form a lower lamination section. The upper lamination section is placed on the lower lamination section such that the tabs and corresponding notches are in contact. The height of the tabs and depth of the notches are proportioned such that a gap of preselected width extends between the edge of the upper portion of the side sections and the adjacent portion of the base section.

REFERENCES:
patent: 1505085 (1924-08-01), Brigham
patent: 1512032 (1924-10-01), Ledwinka
patent: 1623143 (1927-04-01), Warren
patent: 1805534 (1931-05-01), Troy
patent: 2452060 (1948-10-01), Klemperer
patent: 2562693 (1951-07-01), Brooks
patent: 3587020 (1971-06-01), Waasner

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