Illumination – Light source and modifier – With sealing means or artificial atmosphere
Patent
1993-07-27
1995-05-09
Cole, Richard R.
Illumination
Light source and modifier
With sealing means or artificial atmosphere
362806, F21V 3100
Patent
active
054146054
ABSTRACT:
A lamp assembly includes a lamp holder, a lamp that is mounted on the lamp holder, and a lampshade unit that covers the lamp. The lamp holder includes a vertical cylindrical housing which is made of an insulating material and which has an open top and a bottom wall, and a lamp seat that is mounted securely in the housing so as to define an annular groove between the lamp seat and the housing. The housing has a bottom hole formed in the bottom wall thereof. The lamp is connected securely to an upper end portion of the lamp seat and has two electrical wires that extend through the lamp seat and the bottom hole of the housing. The lampshade unit includes a generally cylindrical rubber seal which is retained within the annular groove of the housing, and a transparent lampshade which covers the lamp and which has an annular bottom end portion that is sleeved on the lamp seat and that is retained within the rubber seal. Accordingly, a tight connection is provided between the lampshade unit and the lamp holder so as to protect the lamp from rain.
REFERENCES:
patent: 2347055 (1944-04-01), Johnson
patent: 2481054 (1949-09-01), Wendel
patent: 2709217 (1955-05-01), McCluskey
patent: 3248531 (1966-04-01), Dover
patent: 3763367 (1973-10-01), Nitsch et al.
patent: 4450511 (1984-05-01), Micha
patent: 4521836 (1985-06-01), Puttemanns et al.
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