US5506760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light fitting unit for illuminated signs
Assignee: Aumovio Microelectronic GmbH
•
Filing: 1994-05-27
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Granted: 1996-04-09
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Expires: 2014-05-27
Abstract
Abstract A light fitting unit having a low current input for illuminated signs. The light fitting unit comprises a housing (1) for mounting a plurality of LEDs (4). The housing has four lateral surfaces (1.1-1.4) and two opposite main surfaces (1.5, 1.6). Furthermore, a mounting cap (2) is provided on a first lateral surface (1.1) of the housing. The further lateral surfaces (1.2, 1.3, 1.4) of the housing are enclosed by a groove (3), in the bottom (3.1) of which a plurality of apertures (5) are provided in which a plurality of LEDs (4) are disposed. The light fitting unit can be used as a light source in any illuminated signs instead of conventional bulbs. It is characterized by a low current input and long service life. Fitting in already existing illuminated signs simply by insertion into existing holders is achieved by screw caps or bayonet caps.
Inventors
- 👤 Siegfried Giebler
- 👤 Georg Herok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:09
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/02; H05B33/04; F; F21; F21K; F21K9/00; F21K9/20; F21K9/23; G; G09; G09F; G09F13/00; G09F13/04; G09F13/20; G09F13/22; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/37; F21Y2115/00; F21Y2115/10; G09F13/0418; G09F2013/05; G09F2013/222; Y; Y10; Y10S; Y10S362/00; Y10S362/80
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
A light fitting unit, in particular for illuminated signs, having a housing for mounting a plurality of light emitting diodes, wherein said housing has four exterior lateral surfaces and two opposite main surface, wherein a mounting cap is provided on a first of said four lateral surface of said housing, wherein a circumferential groove extending over said further lateral surfaces of said housing is provided, wherein a plurality of apertures are provided in said further lateral surfaces in a bottom of said groove, and, wherein a plurality of light emitting diodes are disposed in said apertures.
Claim 2
Dependent Claim
96 words
A light fitting unit, in particular for illuminated signs, having a housing for mounting a plurality of light emitting diodes, wherein said housing has four exterior lateral surfaces and two opposite main surface, wherein a mounting cap is provided on a first of said four lateral surface of said housing, wherein a circumferential groove extending over said further lateral surfaces of said housing is provided, wherein a plurality of apertures are provided in said further lateral surfaces in a bottom of said groove, and, wherein a plurality of light emitting diodes are disposed in said apertures.
Claim 3
Dependent Claim
20 words
A light fitting unit according to claim 1, wherein said light emitting diodes are disposed regularly spaced to one another.
Claim 4
Dependent Claim
17 words
A light fitting unit according to claim 1, wherein said groove has lateral flanks that are inclined.
Claim 5
Dependent Claim
17 words
A light fitting unit according to claim 1, wherein said groove is formed of diffusely reflecting material.
Claim 6
Dependent Claim
53 words
A light fitting unit according to claim 4, wherein said groove is sufficiently deep that the light emitting diodes do not project out of said groove, and thereby a major part of the light generated by said LEDs is radiated from said light fitting unit laterally in the plane of said main surfaces.
Claim 7
Dependent Claim
22 words
A light fitting unit according to claim 1, wherein said mounting cap is rotatable independently of said housing using a knurled sleeve.
Claim 8
Dependent Claim
33 words
A light fitting unit according to claim 6, wherein said mounting cap is a screw cap whose thread forms a first electrical contact and in whose center a second electrical contact is provided.
Claim 9
Dependent Claim
33 words
A light fitting unit according to claim 1, wherein said lateral flanks of said groove have small further apertures to achieve an additional light radiation in a direction perpendicular to the main surfaces.
Claim 10
Dependent Claim
75 words
A light fitting unit according to claim 1, wherein: said housing comprises two parts forming an interior, a printed circuit board is disposed in aid interior, said light emitting diodes are mounted on said printed circuit board and electrically connected on it, and a circuit array for adjusting the supply voltage of the plurality of said light emitting diodes to a mains voltage is additionally mounted on and electronically connected to said printed circuit board.
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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) | 1999-04-09 | 1999-10-09 | 2000-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-09 | 2003-10-09 | 2004-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-09 | 2007-10-09 | 2008-04-09 | $7700.00 | Window Closed / Lapsed |