Wound core having circular and elliptic outer surface portions

Details Wound core having circular and elliptic outer surface portions Wound core having circular and elliptic outer surface portions

1987-11-17

1989-07-18

Hail, III, Joseph J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

336212, H01F 2724

Patent

active

048486841

ABSTRACT:
In a wound core to which a cylindrical coil bobbin for windings may be applied, the beginning and/or end portions have a first outer surface with a non-circular elliptic, cross section and a second surface portion on having a circular cross section.

REFERENCES:
patent: 1421899 (1922-07-01), Bingay
patent: 2220732 (1940-11-01), Sanders
patent: 2282854 (1942-05-01), Driftmeyer
patent: 2655717 (1953-10-01), Dunn
patent: 3066388 (1962-12-01), Cooper
patent: 3201734 (1965-08-01), Halacsy
patent: 3464041 (1969-08-01), Waterman
patent: 3465273 (1969-09-01), Brock
patent: 4600911 (1986-07-01), Meinert

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