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US4807971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical decorative apparatus
Assignee: Individual
•
Filing: 1987-11-12
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Granted: 1989-02-28
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Expires: 2007-11-12
Abstract
Abstract An optical decorative apparatus for producing a three-dimensioned image in the inside space of a drum-shaped hologram film by means of light, the apparatus including a dividable casing of lower and upper parts, light equipment, a rotatably supported cylinder-shaped rotary stand surrounding the light equipment, a motor for rotating the rotary stand, said light equipment, rotary stand and motor being arranged inside the lower casing part, and further a drum-shaped hologram film fitted on the rotary stand, wherein the upper casing part is releasably coupled to the lower casing part so as to enclose the drum-shaped hologram film.
Inventors
- 👤 Hideo Nurano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:31
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/04; G03H1/0402; G03H1/22; G03H2001/0421; G03H2001/0426; G03H1/26; G03H1/268; G03H2001/2685; G03H2227/00; G03H2227/05; G03H2227/06; G03H2270/00; G03H2270/20; G03H2270/21
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
92 words
An optical decorative apparatus, comprising: a casing constructed dividably into a lower casing part and a substantially transparent upper casing part; a light equipment, a hollow cylinder-shaped rotary stand supported rotatably, which surrounds the light equipment, and a motor for rotating the rotary stand, said light equipment, rotary stand and motor being arranged inside the lower casing part; a drum-shaped hologram film fitted into the upper part of the rotary stand; wherein the upper casing part is releasably coupled to the lower casing part so as to enclose the drum-shaped hologram film.
Claim 2
Dependent Claim
92 words
An optical decorative apparatus, comprising: a casing constructed dividably into a lower casing part and a substantially transparent upper casing part; a light equipment, a hollow cylinder-shaped rotary stand supported rotatably, which surrounds the light equipment, and a motor for rotating the rotary stand, said light equipment, rotary stand and motor being arranged inside the lower casing part; a drum-shaped hologram film fitted into the upper part of the rotary stand; wherein the upper casing part is releasably coupled to the lower casing part so as to enclose the drum-shaped hologram film.
Claim 3
Dependent Claim
66 words
An optical decorative apparatus as defined in claim 1, further comprising: an annular screening plate with a convex lens provided in the center thereof, which is fitted onto an upper end of the cylindrical rotary stand in such a manner as to cover an upward opening surrounded by the upper end, and as to allow the convex lens to be located right over the light equipment.
Claim 4
Dependent Claim
40 words
An optical decorative apparatus as defined in claim 1 or 2, further comprising: a pair of pieces of magnetic substances capable of attracting one another, which are attached respectively to opposite end parts of the lower and upper casing parts.
Claim 5
Dependent Claim
33 words
An optical decorative apparatus as defined in claim 3, wherein one of said pair of pieces of magnetic substances is a piece of permanent magnet, while the other is a piece of iron.
Claim 6
Dependent Claim
45 words
An optical decorative apparatus as defined in any of claim 1, 2, 3, or 4, wherein a pair of projecting and denting parts allowed to engage with one another for locating are provided respectively on opposite end parts of the lower and upper casing parts.
Claim 7
Dependent Claim
47 words
An optical decorative appartus as defined in any of claim 1, 2, 3, 4, or 5, wherein a plurality of air passing holes are configured respectively in a bottom wall plate of the lower casing part and in a top wall plate of the upper casing part.
References Cited (Backward Citations)
US4429946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-28 | 1992-08-29 | 1993-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-28 | 1996-08-29 | 1997-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-28 | 2000-08-29 | 2001-02-28 | $7700.00 | Window Closed / Lapsed |