Patent US4769638A successfully refreshed from Google Patents.
US4769638A
Expired / Lapsed
US
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Color graphics information display
Assignee: Individual
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Filing: 1986-10-30
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Granted: 1988-09-06
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Expires: 2006-10-30
Abstract
Abstract Large scale information display panels made up of basic picture elements running to hundreds, even up several thousand color elements, are useful for being viewed for advertising, transportation information, traffic control, news, weather, finanical data and other information normally generated by computers. The system has capability in alphanumeric and also for color graphics designs in four colors with use of a basic display element with two intersecting planes rotational about an axis at the intersection of the two planes. A three plane element provides for designs in six colors. The basic two plane display has each face of each of the two plane surfaces coated or impregnated with a different color and a single permanent bar magnet is enclosed in one of the plane forms perpendicular to the axis of rotation. The bar magnet acts as an armature for rotation of the element with current flow through a coil and a holding force with magnetic circuit material resist shifting from a set orientation in a two coil driven configuration. This is with "L" shaped ferrous metal strips providing support for the rotatable display elements and holding a vertical coil and horizontal coil in place for each rotatable display element. Addition of a third coil positioned in element to element dividers for each element and inclusion of a third perpendicular color plane along with two permanent bar magnets at right angles to each other in each element extends the concept to a six color display.
Inventors
- 👤 Robert L. Woolfolk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:32
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/3486; G09F; G09F13/00; G09F13/04; G09F13/0418; G09F13/0472; G09F9/00; G09F9/30; G09F9/37; G09F9/375
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
164 words
A color graphics information display with a plurality of mutually adjacent display elements comprising: a plurality of display elements with each element having a plurality of intersecting mutually perpendicular substantially planar portions; mounting means for said display elements with said display elements rotatable in said mounting means; permanent magnet means mounted in each of said display elements; a plurality of electromagnetic coils mounted in said information display in close proximity to each of said display elements with said coils being in substantially right angle relationship one to the other; current driving control means connected to each of said coils; wherein each of said coils is backed by ferrous metal plating providing a holding force with the permanent magnet means of the associated display elements fixing set positions of said display elements; and each of said coils are flat pancake type coils without iron cores projecting relatively large areas of flux into the area of respective display elements when current is passed through said coils.
Claim 2
Dependent Claim
164 words
A color graphics information display with a plurality of mutually adjacent display elements comprising: a plurality of display elements with each element having a plurality of intersecting mutually perpendicular substantially planar portions; mounting means for said display elements with said display elements rotatable in said mounting means; permanent magnet means mounted in each of said display elements; a plurality of electromagnetic coils mounted in said information display in close proximity to each of said display elements with said coils being in substantially right angle relationship one to the other; current driving control means connected to each of said coils; wherein each of said coils is backed by ferrous metal plating providing a holding force with the permanent magnet means of the associated display elements fixing set positions of said display elements; and each of said coils are flat pancake type coils without iron cores projecting relatively large areas of flux into the area of respective display elements when current is passed through said coils.
Claim 3
Dependent Claim
18 words
The color graphics information display of claim 1, wherein ferrous metal shielding is provided between adjacent display elements.
Claim 4
Dependent Claim
100 words
The color graphics information display of claim 1, wherein said display elements have two intersecting plane sections with different colors on each side of each plane section; with the intersecting axis of said two intersecting plane sections being at the center of each plane section with substantially equal length portions extending outwardly from the intersecting axis; with the intersecting axis of said two intersecting plane sections being an axis of rotation of said display element; and mounting means mounting opposite ends of said display element for rotation of said display element around its axis from one set position to another.
Claim 5
Dependent Claim
28 words
The color graphics information display of claim 3, wherein said permanent magnet means is a bar magnet mounted perpendicular to said axis of rotation of said display element.
Claim 6
Dependent Claim
22 words
The color graphics information display of claim 4, wherein said bar magnet is enclosed in one of said two intersecting plane sections.
Claim 7
Dependent Claim
30 words
The color graphics information display of claim 5, wherein said bar magnet extends substantially from one edge of a plane section to the opposite edge of the same plane section.
Claim 8
Dependent Claim
20 words
The color graphics information display of claim 3, wherein said mounting means includes a combination display element divider and mount.
Claim 9
Dependent Claim
46 words
The color graphics information display of claim 7, wherein said display elements are provided with end mounting projections; and said combination display element divider and mounts are provided with a keyed mounting notches with a key depression holding end mounting projections of two adjacent display elements.
Claim 10
Dependent Claim
19 words
The color graphics information display of claim 8, wherein said end mounting projections of said display elements are round.
Claim 11
Dependent Claim
32 words
The color graphics information display of claim 8, wherein said end mounting projections of said display elements are flat sided as an aid to to stabilizing set positions of said display elements.
Claim 12
Dependent Claim
24 words
The color graphics information display of claim 3, wherein said substantially equal portions of each plane section are wedge shaped wtih enlarged outer edge.
Claim 13
Dependent Claim
26 words
The color graphics information display of claim 3, wherein said substantially equal length portions of each plane section are terminated in enlarged "T" shaped outer edges.
Claim 14
Dependent Claim
35 words
The color graphics information display of claim 3, wherein said substantially equal length portions of each plane section are formed with a plurality of steps on each side with each step having outer facing ends.
Claim 15
Dependent Claim
38 words
The color graphics information display of claim 1, wherein said ferrous metal plating is in the form of "L" shaped channeling underlying and backing, respectively, bottomed positioned coils and back coils in respective horizontal rows of display elements.
Claim 16
Dependent Claim
14 words
The color graphics information display of claim 1, wherein said coils are bifilar coils.
Claim 17
Dependent Claim
54 words
The color graphics information display of claim 1, wherein said display elements have three intersecting plane sections with different colors on each side of each plane section in a six color display element; and three coils with each display element with each coil at right angles to at least one of the other coils.
Claim 18
Dependent Claim
39 words
The color graphics information display of claim 16, wherein said display elements have two transparent spheres one mounted by mounting means for relative movement within the other sphere; and with three intersecting plane sections contained within the inner sphere.
Claim 19
Dependent Claim
14 words
The color graphics information display of claim 17, wherein said mountin means is liquid.
Claim 20
Dependent Claim
20 words
The color graphics information display of claim 17, wherein said mounting means is a support ring of low friction material.
Claim 21
Dependent Claim
18 words
The color graphics information display of claim 17 wherein said mounting means is a plurality of small balls.
Claim 22
Dependent Claim
54 words
The color graphics information display of claim 16, wherein said permanent magnet means is two permanent bar magnets mounted in each of said display elements at right angles to each other and with the north pole of one adjacent the south pole of the other permanent magnet at the center of said display element.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |