Illumination – Supports – Adjustable light support
Reexamination Certificate
2000-05-08
2002-07-09
O'Shea, Sandra (Department: 2875)
Illumination
Supports
Adjustable light support
C362S033000, C362S259000, C362S413000, C362S414000, C362S418000
Reexamination Certificate
active
06416207
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a floor or desk arm adjustable lighting fixture, and more particularly, to one dedicated to a square table to effectively improve the lighting at each edge for eye protection.
2. Description of Related Art
Many people tend to have a poker game, bridge, or mahjong at weekends or on holidays. To such occasion, usually a square table and a lighting fixture are required. The ceiling lamp is used, but the lighting may be poor due to the distance between the ceiling and the table. So a floor or table adjustable arm will be used to make sure that the light source is getting closer to the table.
FIG. 1
of the accompanying drawings shows a view of the prior art, wherein; a floor arm adjustable lamp
10
is provided by a table
11
for playing mahjong. Usually a U shape base
12
is provided to the lamp
10
and sandwiched by any of the four legs
13
of the table
11
; an arm
14
is pivoted to the top of the lamp
10
and a bulb with a shade
15
is provided at one end of the arm
14
. Blocks of mahjong
17
are arranged in row along each edge
16
of the table
11
by each player during the game.
Whereas the light source from the bulb shade
15
is usually turned to where close to the center of the top
18
of the table
11
from the direction
19
projecting to the top
18
as illustrated by the dotted line in
FIG. 1
, the side
171
of the mahjong
17
exposed to the light source gets brighter while the other side
172
tends to get comparatively darker, and even worse should the light source be stronger or the distance between the light source and the top
18
of the table
11
be shorter. It usually takes several hours to play the game, and the player is troubled by reading the figure or pattern indicated by the block of mahjong
17
as it is opposite to the light source, causing damage to the vision of the player.
SUMMARY OF THE INVENTION
The primary purpose is to provide an improved structure to a floor/table arm adjustable lighting fixture for protecting the vision of the players with comfortable and sufficient lighting.
To achieve the purpose, two tubes are provided in sequence to the arm at where closer to a primary light source, a pair of levers each allowing adjustment of its angle is provided to each tube and extending towards to each edge, and each lever is provided with a secondary light source which is adjustable by the corresponding player.
REFERENCES:
patent: RE10167 (1882-07-01), Barrie
patent: 1375888 (1921-04-01), Baer
patent: D105588 (1937-08-01), Korengold
patent: 2352496 (1944-06-01), Rose
patent: 3601598 (1971-08-01), Horn
patent: 4121280 (1978-10-01), Chapman et al.
patent: 4449169 (1984-05-01), Warshawsky
patent: 4700017 (1987-10-01), Morand
patent: 4726552 (1988-02-01), Warshawsky
patent: 4744019 (1988-05-01), Krogsrud
patent: 4827389 (1989-05-01), Crum
patent: 5132492 (1992-07-01), Wieder
patent: 5424931 (1995-06-01), Wheeler
Brown & Michaels PC
Negron Ismael
O'Shea Sandra
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