US4554619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp with a linear light source
Assignee: Selux GmbH
•
Filing: 1984-10-09
•
Granted: 1985-11-19
•
Expires: 2004-10-09
Abstract
Abstract A lamp includes a housing in which a wiring and a switching circuit are accommodated. A linear light source, which can be a hot cathode lamp or a cold cathode lamp, is located outside the lamp and is at least partially accommodated in a recess provided in the lamp housing and opened outwardly.
Inventors
- 👤 Armin Bansbach
- 👤 Helmut Senkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:43
CPC Classifications
F; F21; F21V; F21V27/00; F21V15/00; F21V15/01; F21V15/013; F21V21/00; F21V21/005; F21V21/10; F21V21/112; F21V21/34; F21V21/35; F21V23/00; F21V23/02; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
74 words
A lamp, comprising a housing having an inspection cover and formed with a suspension groove, a chamber for accommodating a wiring, and further including fixtures for weldless longitudinal joints and fixtures for receiving lamp supports; a switching circuit device; and at least one linear light source, said housing being provided with at least one continuous recess which opens outward of said housing, said linear light source being at least partially accommodated in said recess.
Claim 2
Dependent Claim
74 words
A lamp, comprising a housing having an inspection cover and formed with a suspension groove, a chamber for accommodating a wiring, and further including fixtures for weldless longitudinal joints and fixtures for receiving lamp supports; a switching circuit device; and at least one linear light source, said housing being provided with at least one continuous recess which opens outward of said housing, said linear light source being at least partially accommodated in said recess.
Claim 3
Dependent Claim
30 words
The lamp as defined in claim 1, wherein two such recesses are formed in said housing at lateral sides thereof, each recess at least partially accommodating the linear light source.
Claim 4
Dependent Claim
18 words
The lamp as defined in claim 1, wherein said linear light source is entirely accommodated in said recess.
Claim 5
Dependent Claim
12 words
The lamp as defined in claim 1, further including a contacting rail.
Claim 6
Dependent Claim
20 words
The lamp as defined in claim 4, wherein said contacting rail is arranged in said housing above said light source.
Claim 7
Dependent Claim
20 words
The lamp as defined in claim 4, wherein said contacting rail is arranged in said housing below said light source.
Claim 8
Dependent Claim
19 words
The lamp as defined in claim 1, further including at least one shaded fluorescent lamp accommodated in said housing.
Claim 9
Dependent Claim
25 words
The lamp as defined in claim 7, wherein said fluorescent lamp is arranged in said housing so as to emanate light in an upward direction.
Claim 10
Dependent Claim
25 words
The lamp as defined in claim 7, wherein said fluorescent lamp is arranged in said housing so as to emanate light in a downward direction.
Claim 11
Dependent Claim
12 words
The lamp as defined in claim 7, further including a contacting rail.
Claim 12
Dependent Claim
19 words
The lamp as defined in claim 10, wherein said contacting rail is arranged on an underside of said housing.
Claim 13
Dependent Claim
20 words
The lamp as defined in claim 10, wherein said contacting rail is arranged on a top side of said housing.
Claim 14
Dependent Claim
20 words
The lamp as defined in claim 10, wherein said linear light source is positioned on an underside of said housing.
Claim 15
Dependent Claim
25 words
The lamp as defined in claim 13, wherein said fluorescent lamp is arranged in said housing so as to emanate light in an upward direction.
Claim 16
Dependent Claim
17 words
The lamp as defined in claim 14, wherein said switching circuit device is accommodated in said housing.
Claim 17
Dependent Claim
17 words
The lamp as defined in claim 1, wherein said housing is tubular and has a circular cross-section.
Claim 18
Dependent Claim
17 words
The lamp as defined in claim 1, wherein said housing is tubular and has a rectangular cross-section.
References Cited (Backward Citations)
GB958330A
Cited
US3928757A
Cited
JPS54144780A
Cited
US4338653A
Cited
US4415957A
Cited
US4390930A
Cited
US4420798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |