Toothed daylight blinds

Details Toothed daylight blinds Toothed daylight blinds

2005-01-25

2005-01-25

Johnson, Blair M. (Department: 3634)

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Strip or slat structure

Reexamination Certificate

active

06845805

ABSTRACT:
The flight guiding blinds of this invention are characterized in that the tooth sides showing towards sun incidence have an angle of inclination β essentially smaller in the area of the irradiation portion and larger at a larger distance from the irradiation portion, and the angles of inclination β increase following a concave curve path increasingly ascending from the irradiation area towards the reflection area, and at the upper side of light guiding blinds retro-reflected reaction is concentrated and a concentration zone is formed near irradiation portion and the concentration zone is disposed either in front of blind in the irradiation portion and/or on the underside of upper blind behind the irradiation portion, and on the upper side of a light guiding blind light radiation may be reflected at the individual teeth at and angle αR<αS.

REFERENCES:
patent: 4509825 (1985-04-01), Otto et al.
patent: 4519675 (1985-05-01), Bar-Yonah
patent: 4773733 (1988-09-01), Murphy et al.
patent: 6240999 (2001-06-01), Koster
patent: 6367937 (2002-04-01), Koster
patent: 19543811 (1997-03-01), None

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