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Pressure equalization structure and motor improvement for fluid-immersed self-rotating displays

A self-rotation and fluid technology, applied in display devices, instruments, motor vehicles, etc., can solve the problems of expensive and enlarged power supply mechanism

Active Publication Date: 2017-08-29
TURTLETECH DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice, this reduction can be expensive and can detrimentally increase the size of the power supply mechanism in installations with limited space

Method used

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  • Pressure equalization structure and motor improvement for fluid-immersed self-rotating displays
  • Pressure equalization structure and motor improvement for fluid-immersed self-rotating displays
  • Pressure equalization structure and motor improvement for fluid-immersed self-rotating displays

Examples

Experimental program
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Embodiment Construction

[0047] Referring now to the accompanying drawings, figure 2 A self-rotating device 1 is shown in , which has a substantially fixed, sealed outer container 2 with a light-transmitting wall 3 enclosing an inner cavity 5 containing a quantity of A light-transmitting fluid 6, and a body 4 of axially symmetrical shape, such as a ball or sphere, is immersed in the fluid and allowed to rotate about an axis 7 relative to said outer container. The body has a light-transmitting wall 9 that allows ambient light L to pass through the outer container wall 3, the fluid 6 and the body wall 9 to power a solar cell 15 that supplies current to an electric motor 14 inside said body. The axially symmetrical shape of the body allows the body to rotate with a minimal amount of drag due to contact with surrounding liquid. The earth's magnetic field 10 provides anchoring to a compass magnet 18 within the body that provides a source of counter torque to the electric motor. As disclosed in French, U...

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Abstract

A self-rotating display device includes and outer light transmissive container (402) containing a light transmissive fluid (406) and a body (404) containing an electric motor (421) for rotating the body with respect to the outer container. The body also carries an amount of the fluid (430a) contacting the fluid in the outer container through a pressure equalizing gap (431) 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.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62096983, filed December 26, 2014, and U.S. Provisional Patent Application No. 62152714, filed April 24, 2015, both of which are incorporated by reference This article. technical field [0003] The present invention relates to self-powered display devices and, more particularly, to enclosed, fluid-immersed, light-powered, motor-driven self-rotating devices. Background technique [0004] Self-moving displays are commonly used as toys, decorative conversation pieces, or advertising media. Such devices are disclosed in my US Patent Nos. 6,275,127, 6,853,283, 6,937,125 and US Patent Publication No. 2005 / 0102869, the entire contents of which are hereby incorporated by reference. [0005] These devices may have a sealed outer container with a light-transmissive wall containing a light-transmissive liquid that floats on a support that appears to mag...

Claims

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Application Information

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IPC IPC(8): B63G8/22
CPCG09F19/02G01C17/38A63H29/22A63H23/08G09F11/235
Inventor 威廉·W·弗伦奇
Owner TURTLETECH DESIGN
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