The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2017
Filed:
Feb. 25, 2015
Essex Group, Inc., Atlanta, GA (US);
Allan R. Knerr, Fort Wayne, IN (US);
Gregory S. Caudill, Fort Wayne, IN (US);
Baber Inayat, Fort Wayne, IN (US);
Jason Dennis Stephens, Fort Wayne, IN (US);
Koji Nishibuchi, Fort Wayne, IN (US);
Bogdan Gronowski, Fort Wayne, IN (US);
Joonhee Lee, Gunpo-si, KR;
Won S. Lee, Gunpo-si, KR;
Essex Group, Inc., Fort Wayne, IN (US);
Abstract
An insulated winding wire may include a conductor and insulation formed around the conductor. The insulation may include a base insulation layer formed around the conductor and having a first dielectric constant (ε). The insulation may further include an extruded thermoplastic layer formed around the base insulation layer and having a second dielectric constant (ε). The extruded thermoplastic layer may include (i) at least one polymer comprising a ketone group and (ii) at least one fluoropolymer. A ratio of the dielectric constant (ε) of the extruded thermoplastic layer to the dielectric constant (ε) of the base layer at 250° C. may be less than or equal to approximately 1.0.