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US5426877A Expired / Lapsed US ⏱️ 0.0 years remaining

Dynamic liquid display structure

Assignee: Individual
•
Filing: 1994-01-04
•
Granted: 1995-06-27
•
Expires: 2014-01-04
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Abstract

Abstract Pearl shaped bodies are caused to ascend and descend in a liquid filled container by an electromagnetically driven rotator blade assembly which moves the liquid and bodies upwardly through a pressure robe, after which the bodies may descend downwardly along a spiral glide path encircling the length of the pressure tube.

Inventors

  • 👤 Rich Lin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:11
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/02

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 230 words
A dynamic liquid display structure comprising: a) a transparent container including an upper portion and a lower portion, the container being filled with a liquid of a first specific gravity; b) a plurality of discrete bodies disposed within the liquid, the bodies being of a second specific gravity that is greater than the first specific gravity to permit the bodies to sink in the liquid; c) a compression tube vertically positioned within the container and including a top end and a bottom end; d) a spiral glide path extending around and vertically along the compression tube; e) a conical guide chute at the bottom end of the compression tube; f) a funnel-shaped collector cup positioned below the guide chute; g) a liquid housing positioned below the collector cup and including an inlet port for receiving liquid from the upper portion, an outlet port positioned at the center of the collector cup, and a collector cone extending downwardly from the outlet port; h) a plurality of rotator blades disposed at a lower portion of the liquid housing; and i) electromagnetic drive means for rotating the rotator blades to circulate the liquid from the inlet port to the outlet port and upwardly through the compression tube along with the bodies towards the upper portion of the container so that the bodies may descend through the liquid and along the spiral glide path.
Claim 2
Dependent Claim 230 words
A dynamic liquid display structure comprising: a) a transparent container including an upper portion and a lower portion, the container being filled with a liquid of a first specific gravity; b) a plurality of discrete bodies disposed within the liquid, the bodies being of a second specific gravity that is greater than the first specific gravity to permit the bodies to sink in the liquid; c) a compression tube vertically positioned within the container and including a top end and a bottom end; d) a spiral glide path extending around and vertically along the compression tube; e) a conical guide chute at the bottom end of the compression tube; f) a funnel-shaped collector cup positioned below the guide chute; g) a liquid housing positioned below the collector cup and including an inlet port for receiving liquid from the upper portion, an outlet port positioned at the center of the collector cup, and a collector cone extending downwardly from the outlet port; h) a plurality of rotator blades disposed at a lower portion of the liquid housing; and i) electromagnetic drive means for rotating the rotator blades to circulate the liquid from the inlet port to the outlet port and upwardly through the compression tube along with the bodies towards the upper portion of the container so that the bodies may descend through the liquid and along the spiral glide path.
Claim 3
Dependent Claim 48 words
The display structure of claim 1 wherein the electromagnetic drive means includes: a) rotatable drive shaft, the rotator blades being mounted on the drive shaft; b) a magnet integrated with the drive shaft for rotation therewith; and c) an electromagnetic coil positioned adjacent the magnet for rotating same.

References Cited (Backward Citations)

US4490931A Cited
US5272604A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-06-26 1998-12-26 1999-06-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-06-26 2002-12-26 2003-06-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-06-26 2006-12-26 2007-06-27 $7700.00 Window Closed / Lapsed

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