Patent US4831505A successfully refreshed from Google Patents.
US4831505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular flourescent tube light fixture for ceiling fan
Assignee: VAN NORMAN MARCIA J
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Filing: 1987-10-07
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Granted: 1989-05-16
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Expires: 2007-10-07
Abstract
Abstract A circular flourescent tube light fixture for a ceiling fan, particularly one suspended from a low ceiling. The light holder is adjustable upward when a deep concave light reflector is used and is adjustable downward when a flat light shield is used. The holder fits around a tubular housing that mounts on the lower center end of the ceiling fan mechanism. Within this housing is the transformer, starter, and wiring that extends between the ceiling fan motor and the flourescent tube light. A friction spring fits between the light holder and tubular housing to retain the holder in upward position when a deep concave light reflector is used. It also prevents rotation of the holder relative to the housing as an electrical safety measure since electrical wiring extends between them. In one embodiment the light reflector is fastened to the base of the tubular housing and in another it is attached to the holder and moves vertically with the tube light.
Inventors
- 👤 Kenneth M. Van Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:01
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/0088; F21V33/0096; F04; F04D; F04D25/00; F04D25/02; F04D25/08; F04D25/088; F21V19/00; F21V19/0075; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/33
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
86 words
A circular flourescent tube light fixture comprising: a tubular housing having a top and bottom cover, fastening means removably connecting said top and bottom covers with said housing retained therebetween, said housing having a light holder slideably mounted for vertical adjustment on the outer surface thereof, said holder comprising a collar vertically moveable over said housing outer surface, a plate extending radially outwardly from said collar, and tube holding brackets on said plate with a circular flourescent tube light positioned within and held by said brackets.
Claim 2
Dependent Claim
86 words
A circular flourescent tube light fixture comprising: a tubular housing having a top and bottom cover, fastening means removably connecting said top and bottom covers with said housing retained therebetween, said housing having a light holder slideably mounted for vertical adjustment on the outer surface thereof, said holder comprising a collar vertically moveable over said housing outer surface, a plate extending radially outwardly from said collar, and tube holding brackets on said plate with a circular flourescent tube light positioned within and held by said brackets.
Claim 3
Dependent Claim
44 words
A circular flourescent tube light fixture as set forth in claim 1 wherein a threaded stem is affixed through said upper cover to permit attachment to the bottom of a ceiling fan and for passage of electrical conductors from said fan into said housing.
Claim 4
Dependent Claim
33 words
A circular flourescent tube light fixture as set forth in claim 2 wherein a transformer and flourescent light starter components are in said housing and interconnect said tube light to said electrical conductors.
Claim 5
Dependent Claim
44 words
A circular flourescent tube light fixture as set forth in claim 1 wherein a screw extends downwardly from said bottom cover, a light reflector having a central aperture therein fits over said screw and is secured thereto with a nut threaded onto said screw.
Claim 6
Dependent Claim
41 words
A circular flourescent tube light fixture as set forth in claim 1 wherein said collar has a plurality of leaf springs thereon bearing inwardly against said housing outer surface to frictionally retain said holder in desired vertical position on said housing.
Claim 7
Dependent Claim
35 words
A circular flourescent tube light fixture as set forth in claim 5 wherein said leaf springs ride in vertical grooves in said housing outer surface to prevent rotational movement between said housing and said holder.
Claim 8
Dependent Claim
45 words
A circular flourescent tube light fixture as set forth in claim 1 wherein a light reflector with a central opening therein is attached to said plate and moves vertically therewith, said reflector fitting around said housing which fits within said central opening of said reflector.
Claim 9
Dependent Claim
43 words
A circular flourescent tube light fixture as set forth in claim 1 in combination with a ceiling fan having downwardly extending pull chains, a light reflector attached to said bottom cover, said light reflector having apertures therein through which said pull chains pass.
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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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |