Illumination – Light source and modifier – Louvered or grid type modifier
Reexamination Certificate
2007-05-22
2007-05-22
Lee, Jong Suk (Department: 2875)
Illumination
Light source and modifier
Louvered or grid type modifier
C362S294000, C362S342000, C362S345000
Reexamination Certificate
active
10854023
ABSTRACT:
An illuminator is disposed in an air path of a ventilation blower disposed above the ceiling of an elevator cage. An illumination shielding device is disposed below the illuminator and also in the air path. The illumination shielding device includes a plurality of spaced apart parallel rectangular plates, where the lower portions of the plates are inclined toward the elevator cage sidewalls. One or more such combinations of illuminator and illumination shielding device can be used in an elevator cage. Preferably, illuminators and illumination shielding devices are disposed at corners of the elevator cage ceiling, in order to maximize elevator cage capacity. A reflective plate can be mounted to the elevator cage ceiling.
REFERENCES:
patent: 1922786 (1933-08-01), Thompson
patent: 2216444 (1940-10-01), McCann
patent: 2280881 (1942-04-01), Arenberg
patent: 2305722 (1942-12-01), Livers
patent: 2732484 (1956-01-01), Lipscomb
patent: 2761058 (1956-08-01), Lipscomb
patent: 2887564 (1959-05-01), Baran
patent: 3169710 (1965-02-01), Lipscomb
patent: 6789914 (2004-09-01), Brown et al.
Lee Jong Suk
Lumen Intellectual Property Services Inc.
Negron Ismael
LandOfFree
Indirect illumination system used as ventilation path for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Indirect illumination system used as ventilation path for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Indirect illumination system used as ventilation path for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3801880