Illumination – Light source and modifier – With ventilating – cooling or heat insulating means
Patent
1988-02-10
1989-08-29
Husar, Stephen F.
Illumination
Light source and modifier
With ventilating, cooling or heat insulating means
362 80, 362310, 362345, F21V 2900
Patent
active
048623377
ABSTRACT:
Herein disclosed is an automotive headlamp assembly of a so-called ventilation type. The assembly comprises a body structure having an open chamber formed therein, a lens attached to the body structure to cover the open chamber thereby to form in the body structure an enclosed chamber, an electric bulb arranged in the enclosed chamber, and first and second pipe members each having on end projected into the enclosed chamber and the other end exposed to the atmosphere. The other end of the second pipe member is so constructed and arranged that when a certain air flow passes through the other end, a negative pressure is produced around the same.
REFERENCES:
patent: 4569007 (1986-02-01), Dick
patent: 4635173 (1987-01-01), Dressler et al.
Koyanagi Yoshinobu
Kurosawa Yoshiki
Makita Hiroyuki
Nagasawa Hidehiko
Ohshio Hirohiko
Husar Stephen F.
Koito Seisakusho Co. Ltd.
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