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.

Date of Patent:
Feb. 13, 1990

Filed:

Sep. 28, 1988
Applicant:
Inventor:

Gene A Fisher, Highlands Ranch, CO (US);

Assignee:

Fisher Technology, Inc., Littleton, CO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ; H02K / ; H01F / ;
U.S. Cl.
CPC ...
310216 ; 310 12 ; 310 / ; 310256 ; 310266 ;
Abstract

A lightweight electromotive device with a high power-to-weight ratio capable of operating as an efficient motor, alternator or generator includes an mangetic-flux producing assembly comprising spaced magnetic elements, and an armature assembly formed by winding conductive, non-magnetic wire, such as copper wire on flux carrying core or stator bar elements. The elements are shaped to form an eddy current shield for the windings and provide two heat radiating surfaces. This allows the device to operate with minimal eddy current losses and maximum radiation and convection cooling. The armature windings and flux carrying elements are dispersed as a further measure to avoid creating opposing induced currents.


Find Patent Forward Citations

Fisher, Gene. (1990). Lightweight high power electromotive device (U.S. Patent No. 4900965). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4900965

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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