US3928757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spot light fixture
Assignee: Individual
•
Filing: 1973-04-17
•
Granted: 1975-12-23
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Expires: 1993-04-17
Abstract
Abstract A ceiling unit comprised of a pair of laterally spaced parallel fluorescent lamps provided with reflectors to respectively direct the light therefrom toward the ceiling and a pair of incandescent spot-light lamps between the fluroescent lamps, a first lamp directing the light therefrom downwardly and the other at an angle toward the light path of the first lamp.
Inventors
- 👤 Paul Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:02
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/0064; F21V33/0068; F21V33/0072; F21S; F21S8/00; F21S8/04; Y; Y10; Y10S; Y10S362/00; Y10S362/804
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
150 words
An overhead lighting fixture comprising, in combination, a housing provided with a first pair of laterally spaced elongated casings and a second central elongated casing, a pair of parallel coextensive fluorescent lamp tubes respectively supported within said first pair of casings, means including a separate reflector below each tube to provide for directing the light therefrom at an angle to the ceiling, the directed light having vertical and oppositely directed lateral components away from the first pair of respective casings, a pair of incandescent spotlight lamps within the elongated central casing and spaced therealong, means supporting one of said spotlight lamps in said elongated central casing to project the light therefrom without obstruction in a downwardly vertical direction, and means supporting the other of said spotlight lamps in said elongated central casing for projecting the light therefrom without obstruction in an oblique direction both downwardly and toward the one spotlight.
Claim 2
Dependent Claim
150 words
An overhead lighting fixture comprising, in combination, a housing provided with a first pair of laterally spaced elongated casings and a second central elongated casing, a pair of parallel coextensive fluorescent lamp tubes respectively supported within said first pair of casings, means including a separate reflector below each tube to provide for directing the light therefrom at an angle to the ceiling, the directed light having vertical and oppositely directed lateral components away from the first pair of respective casings, a pair of incandescent spotlight lamps within the elongated central casing and spaced therealong, means supporting one of said spotlight lamps in said elongated central casing to project the light therefrom without obstruction in a downwardly vertical direction, and means supporting the other of said spotlight lamps in said elongated central casing for projecting the light therefrom without obstruction in an oblique direction both downwardly and toward the one spotlight.
Claim 3
Dependent Claim
47 words
An overhead lighting fixture according to claim 1 wherein said spotlight lamps are provided with reflectors and shades for directing the light from the incandescent lamps in said respective directions, the light transmission paths of said incandescent lamps being at an angle of 60* to each other.
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |