Polymer sheet core and coil insulation for transformers

Inductor devices – With supporting and/or spacing means between coil and core – Preformed insulation between coil and core

Reexamination Certificate

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C336S207000

Reexamination Certificate

active

06933824

ABSTRACT:
A transformer includes a core defining a core window, a first coil surrounding a portion of the core and including a portion located within the core window, a second coil surrounding a portion of the core and including a portion located within the core window, and a polymer barrier insulation member that is located at least partially within the core window and positioned between the first coil and the second coil.

REFERENCES:
patent: 4673907 (1987-06-01), Lee
patent: 4833436 (1989-05-01), Martin et al.
patent: 4837543 (1989-06-01), Humen et al.
patent: 4890086 (1989-12-01), Hill
patent: 5194841 (1993-03-01), Galloway et al.
patent: 5319341 (1994-06-01), Bisbee et al.
patent: 5684446 (1997-11-01), Adkins et al.
patent: 6424246 (2002-07-01), Kysely et al.

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