US4094084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curved prism ornament
Assignee: Individual
•
Filing: 1976-05-03
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Granted: 1978-06-13
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Expires: 1996-05-03
Abstract
Abstract An optical ornament, novelty or plaything comprised of a hanging curved prism pivotally suspended for movement in air currents, as a mobile, whereby incident light (preferably sunlight) is transmitted through the prism and projected against a surface (interior walls of a building) to provide colorful, ornamental spectra thereon. The curved prism is triangular in cross-section, elongate, and curved about an axis which lies parallel to the radially innermost face, outside of the transparent member, and extends generally perpendicular thereto. The curved prism is of any transparent material and may be colored or tinted to provide color filtering. The curved prism is provided with a small finger member projecting midway from the radially innermost prism surface. When the prism is supported at or hung from this finger member the prism balances in equilibrium in a generally horizontal attitude. The finger member has multiple suspension points which, when the prism is suspended from different ones of said suspension points, causes the spectrum projection angle of the prism to be varied relative to the horizon.
Inventors
- 👤 Fred Allen DaMert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:20
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/02; F; F21; F21S; F21S10/00; F21S10/06; F21V; F21V5/00; F21V5/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
75 words
An optical ornament comprising: an elongate arcuate transparent member shaped like a prism which has been curved about an exterior axis perpendicular to its length; and suspension means located midway between the ends of said member so that said member may be pivotally suspended in a horizontal attitude, said suspension means comprising a finger extending from a radially inner surface of said member; and, whereby said member may rotate freely in response to air currents.
Claim 2
Dependent Claim
75 words
An optical ornament comprising: an elongate arcuate transparent member shaped like a prism which has been curved about an exterior axis perpendicular to its length; and suspension means located midway between the ends of said member so that said member may be pivotally suspended in a horizontal attitude, said suspension means comprising a finger extending from a radially inner surface of said member; and, whereby said member may rotate freely in response to air currents.
Claim 3
Dependent Claim
48 words
The ornament of claim 1, wherein said finger has a plurality of suspension points from which said member may be suspended, and wherein the angle of said radially inner face may be varied relative to the horizon by suspending said member from different ones of said suspension points.
Claim 4
Dependent Claim
29 words
The ornament of claim 2 wherein said finger is curved about an axis which, when said member is pivotally suspended from said finger, is horizontal and beneath said finger.
Claim 5
Dependent Claim
30 words
The ornament of claim 2 wherein said finger is provided with a plurality of notches which serve as and thereby locate said suspension points at various positions along said finger.
Claim 6
Dependent Claim
100 words
A mobile comprising: an elongate prismatic member, triangular in cross-section, having three curved rectangular faces, the radially inner one of said faces being curved about an axis parallel thereto and perpendicular to but not intersecting said member; a finger extending from the radially inner one of said three faces, from a position intermediate the ends of said member whereby said member may rotate freely in air currents or the like; and means for positioning said member in a beam of light whereby light incident upon one of said faces emerges from another of said faces to produce a curved spectrum.
Claim 7
Dependent Claim
100 words
A mobile comprising: an elongate prismatic member, triangular in cross-section, having three curved rectangular faces, the radially inner one of said faces being curved about an axis parallel thereto and perpendicular to but not intersecting said member; a finger extending from the radially inner one of said three faces, from a position intermediate the ends of said member whereby said member may rotate freely in air currents or the like; and means for positioning said member in a beam of light whereby light incident upon one of said faces emerges from another of said faces to produce a curved spectrum.
Claim 8
Dependent Claim
59 words
An optical ornament comprised of a curved prism and means for positioning said prism in a building in a beam of incident sunlight whereby sunlight passing through said prism may be projected upon a wall or other interior surface of the building to form a curved decorative color spectrum thereupon; wherein the projection angle of said prism is adjustable.
Claim 9
Dependent Claim
59 words
An optical ornament comprised of a curved prism and means for positioning said prism in a building in a beam of incident sunlight whereby sunlight passing through said prism may be projected upon a wall or other interior surface of the building to form a curved decorative color spectrum thereupon; wherein the projection angle of said prism is adjustable.
Claim 10
Dependent Claim
48 words
An optical device for projecting spectra comprising: a curved elongate prism having an elongate concave radially inner face; and support means comprising a small finger extending from said radially inner face for supporting said prism in balanced equilibrium, said means located midway between the ends of said prism.
Claim 11
Dependent Claim
48 words
An optical device for projecting spectra comprising: a curved elongate prism having an elongate concave radially inner face; and support means comprising a small finger extending from said radially inner face for supporting said prism in balanced equilibrium, said means located midway between the ends of said prism.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |