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:
Dec. 13, 2022
Filed:
Feb. 28, 2020
Turtletech Design, Inc., San Diego, CA (US);
William W. French, Cardiff-By-The-Sea, CA (US);
TurtleTech Design, Inc., Santa Fe Springs, CA (US);
Abstract
A self-rotating display device includes and outer light transmissive container () containing a light transmissive fluid () and an body () containing an electric motor () for rotating the body with respect to the outer container. The body also carries an amount of the fluid () contacting the fluid in the outer container through a pressure equalizing gap () in the body which forms a fluid pathway between the inner cavity of the body and the inner chamber of the outer container. The fluid pathway forms self-regulating pressure relief structure which accommodates slight pressure variations in the fluid due to climactic conditions for example. A specialized reduced footprint fluid-immersible electric motor having separate field and compass magnets, which do not rotate relative to each other, helps eliminate magnetic cogging. The device can be manufactured according to a method which eliminates the necessity of a fill hole in the body.