US4611266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractor for electric light wall unit
Assignee: Cable Electric Products Inc
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Filing: 1985-07-19
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Granted: 1986-09-09
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Expires: 2005-07-19
Abstract
Abstract The invention features a reflector for an electric bulb wall unit that diffuses and spreads the light over a wider area. The body of the reflector has a light diffusing semi-cylindrical center surface containing many diamond-studded projections. Surrounding the center surface are quarterly-spherical surfaces having saw-toothed striations that diffuse and spread the light in arcuate pathways.
Inventors
- 👤 Frederic W. Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:13
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/03; F21S8/033; F21S8/035; F21V; F21V21/00; F21V21/02; F21V5/00; F21V5/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
70 words
A light refractor for a plug-in, electric light wall unit, comprising a light transmissive body having a plurality of surface sections having light diffusing patterns thereon, including: a semi-cylindrical surface having a diamond-studded type of texture; and a pair of quarterly-spherical surfaces respectively bordering upon said semi-cylindrical surface and having saw-toothed type striations substantially radiating from a center point upon a demarcation between said quarterly-spherical surfaces and said semi-cylindrical surface.
Claim 2
Dependent Claim
70 words
A light refractor for a plug-in, electric light wall unit, comprising a light transmissive body having a plurality of surface sections having light diffusing patterns thereon, including: a semi-cylindrical surface having a diamond-studded type of texture; and a pair of quarterly-spherical surfaces respectively bordering upon said semi-cylindrical surface and having saw-toothed type striations substantially radiating from a center point upon a demarcation between said quarterly-spherical surfaces and said semi-cylindrical surface.
Claim 3
Dependent Claim
27 words
The light refractor of claim 1, wherein said diamond studded type of surface and said saw-toothed type striations are disposed upon an inner portion of said body.
Claim 4
Dependent Claim
24 words
The light refractor of claim 1, further comprising a bracket extending from an inner portion of said body for supporting an electrical light base.
Claim 5
Dependent Claim
19 words
The light refractor of claim 3, wherein said bracket is disposed approximately one-third a distance along said semi-cylindrical section.
Claim 6
Dependent Claim
20 words
In combination with the refractor of claim 1, a bracket attached to said body and supporting an electric light base.
Claim 7
Dependent Claim
16 words
The light refractor of claim 1, wherein an outer portion of said body is substantially smooth.
Claim 8
Dependent Claim
19 words
The light refractor of claim 1, further comprising an oval-shaped rear surface section bordering said semi-cylindrical and quarterly-spherical surfaces.
Claim 9
Dependent Claim
15 words
The light refractor of claim 7, wherein said oval-shaped rear surface comprises saw-toothed type stirations.
References Cited (Backward Citations)
US2075364A
Cited
USD274369S
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-08 | 1990-03-10 | 1990-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-08 | 1994-03-10 | 1994-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-08 | 1998-03-10 | 1998-09-09 | $7700.00 | Window Closed / Lapsed |