US3593014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low level light fixture
Assignee: SPX Technologies Inc
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Filing: 1969-01-17
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Granted: 1971-07-13
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Expires: 1989-01-17
Abstract
Abstract Low level light fixture for projection of usable light to all or part of the area surrounding the fixture while eliminating glare or direct light to persons walking thereby, and including a louvered construction that operates externally at temperatures not hazardous to persons touching same.
Inventors
- 👤 Donald V Vesely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:11
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/08; F21S8/085; F21S8/088; F21V; F21V11/00; F21V11/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
176 words
A low level light fixture adapted to be supported on a pole at a height below the eye level of persons walking thereby, said fixture including a base member adapted to be secured to the pole and having a lamp socket, said base member having an annular support member, a plurality of upstanding rods extending upwardly from said support member, a plurality of identical stacked annular louver members having nested boss means received in guiding relation on said rods and supported by said support member, a lens positioned within said louver members of substantially the same height as said stacked louver members and supported on said support member, a hood over said uppermost louver having a plurality of lens retainer and hood mounting brackets being received on said rods and fastened thereto, said brackets defining a gap between the upper end of the lens and the hood, and openings in said base member permitting air to pass therethrough upwardly through the interior of the lens around the lamp and out through the gap at the hood.
Claim 2
Dependent Claim
176 words
A low level light fixture adapted to be supported on a pole at a height below the eye level of persons walking thereby, said fixture including a base member adapted to be secured to the pole and having a lamp socket, said base member having an annular support member, a plurality of upstanding rods extending upwardly from said support member, a plurality of identical stacked annular louver members having nested boss means received in guiding relation on said rods and supported by said support member, a lens positioned within said louver members of substantially the same height as said stacked louver members and supported on said support member, a hood over said uppermost louver having a plurality of lens retainer and hood mounting brackets being received on said rods and fastened thereto, said brackets defining a gap between the upper end of the lens and the hood, and openings in said base member permitting air to pass therethrough upwardly through the interior of the lens around the lamp and out through the gap at the hood.
Claim 3
Dependent Claim
29 words
A low level light fixture as defined in claim 1, wherein said louver members are sized and formed to preclude direct light or objectionable glare to persons walking thereby.
Claim 4
Dependent Claim
29 words
A low level light fixture as defined in claim 1, wherein said louver members have a concavo-convex shape looking from the base member to direct light outwardly and downwardly.
Claim 5
Dependent Claim
35 words
A low level light fixture as defined in claim 1, wherein said base member includes a channel to guide placement of the lens, and recesses for guiding placement of the bosses of the lowermost louver.
Claim 6
Dependent Claim
34 words
A low level light fixture as defined in claim 1, wherein each louver member includes recesses at the upper ends of the boss means receiving the next upper bosses and defining a nesting relationship.
Claim 7
Dependent Claim
29 words
A low level light fixture as defined in claim 1, wherein said lens-retainer and hood-mounting bracket has lens engaging fingers for positioning of said lens relative to said louvers.
Claim 8
Dependent Claim
30 words
A low level light fixture as defiNed in claim 1, and a reflector positioned on the inside of said lens reflecting light through the lens not covered by the reflector.
Claim 9
Dependent Claim
41 words
A low level light fixture as defined in claim 1, wherein said lens is prism formed on its outer surface to redistribute the light rays from the lamp outwardly away from the fixture and uniformly over the area to be illuminated.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |