US3760179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indirectly lighted panels for walls and ceilings
Assignee: Individual
•
Filing: 1972-07-24
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Granted: 1973-09-18
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Expires: 1992-07-24
Abstract
Abstract A lighting system for walls and ceilings wherein a plurality of transparent plastic panels of uniform thickness are positioned in adjacent edge spaced relation to a wall or ceiling surface, with each panel having secured to the outer surface thereof a compacted plurality of fiberglass pile or nap of uniform length secured substantially normal to the outer surface of the panel for uniformly transmitting artificial light positioned between the inner surface of the said panels and the adjacent wall or ceiling through said panels and from the ends of fiberglass pile.
Inventors
- 👤 C Addington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:52
CPC Classifications
F; F21; F21V; F21V3/00; F21V3/04; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T428/23993
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
The process of producing a transparent panel having a substantially uniform nap of light conducting fibers secured in substantially normal position with respect to the outer surface of said panel comprising a first step of coating the outer surface of said panel with a transparent self curing adhesive of uniform thickness, a second step of cutting predetermined lengths of fiberglass into short elements of substantially uniform length, a third step of transferring by electrostatic means a quantity of said fiberglass elements onto said adhesive coated surface of said panel by bonding one end of each said element by said adhesive onto said panel with each element substantially normal to said surface of said panel and in close proximity with adjacent elements for forming a nap on said panel when said adhesive is cured.
Claim 2
Dependent Claim
133 words
The process of producing a transparent panel having a substantially uniform nap of light conducting fibers secured in substantially normal position with respect to the outer surface of said panel comprising a first step of coating the outer surface of said panel with a transparent self curing adhesive of uniform thickness, a second step of cutting predetermined lengths of fiberglass into short elements of substantially uniform length, a third step of transferring by electrostatic means a quantity of said fiberglass elements onto said adhesive coated surface of said panel by bonding one end of each said element by said adhesive onto said panel with each element substantially normal to said surface of said panel and in close proximity with adjacent elements for forming a nap on said panel when said adhesive is cured.
Claim 3
Dependent Claim
139 words
A light conducting panel of substantially uniform thickness for diffusing light from an electric lamp when the latter is energized, said light conducting panel comprising: a transparent panel of rigid material and predetermined substantially uniform thickness having front and rear surfaces, a coating of transparent adhesive on the front surface of said panel, a large plurality of light conducting fiberglass elements of substantially uniform length with one end of each thereof secured by said adhesive in a position normal to the said front surface of said panel and in close substantially parallel relation to each other forming a light conducting pile over the entire area of each said panel whereby electric illumination positioned in proximity with the rear said surface of said panel will be substantially uniformly dispersed from said pile over the entire front surface of said panel.
Claim 4
Dependent Claim
139 words
A light conducting panel of substantially uniform thickness for diffusing light from an electric lamp when the latter is energized, said light conducting panel comprising: a transparent panel of rigid material and predetermined substantially uniform thickness having front and rear surfaces, a coating of transparent adhesive on the front surface of said panel, a large plurality of light conducting fiberglass elements of substantially uniform length with one end of each thereof secured by said adhesive in a position normal to the said front surface of said panel and in close substantially parallel relation to each other forming a light conducting pile over the entire area of each said panel whereby electric illumination positioned in proximity with the rear said surface of said panel will be substantially uniformly dispersed from said pile over the entire front surface of said panel.
Claim 5
Dependent Claim
49 words
The construction recited in claim 2 wherein the outer surface of each of said fiberglass elements is colored with an adherent thin coating of predetermined color for applying a color characteristic to the light emission of said panel when the rear surface thereof is illuminated by an electric lamp.
Claim 6
Dependent Claim
17 words
The construction recited in claim 2 wherein the said adhesive is a self curing adherent epoxy cement.
Claim 7
Dependent Claim
16 words
The construction recited in claim 2 wherein the said panel is formed of acrylic plastic material.
Claim 8
Dependent Claim
14 words
The construction recited in claim 2 wherein the panel is formed of transparent glass.
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |