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:
Sep. 27, 2022
Filed:
Nov. 05, 2018
Kayo Sakai, Kuwana, JP;
Eiichirou Shimazu, Kuwana, JP;
Shougo Kanbe, Kuwana, JP;
NTN CORPORATION, Osaka, JP;
Abstract
Provided is an electric transmission device that is provided at relatively rotating parts of a mechanical apparatus. The electric transmission device (E) includes a pair of magnetic elements (A,B) relatively rotatable about the same axis (O). The magnetic elements (A,B) each includes a core (A,B) and a coil (A,B) having a conductive wire. One of the coil (A) and the coil (B) is located at an inner side of the other coil in a radial direction, and the coils (A andB) are magnetically coupled to each other. Each bobbin (A,B) includes a cylinder (A,B) and a dis-shaped flange (A,B). The flanges (A,B) are slidably in contact with each other at contact surfaces () thereof in the axial direction.