Variable sunshield

Details Variable sunshield Variable sunshield

1989-02-06

1990-10-16

Raduazo, Henry E.

Tent, canopy, umbrella, or cane

Umbrella

Inflatable

135 16, A01G 1302

Patent

active

049627805

ABSTRACT:
A sunshield device is disclosed having two relatively movable, collapsible screen means fabricated of material which upon relative motion between screen means operates to filter, block, scatter and reduce the intensity of solar radiation. The desired effect is achieved by using polarizing film, imprinting patterns of opaque and have parent strips or dots so that upon rotation, translation or orbital motion of one screen means relative to another screen means virtually any desired intensity of solar radiation can be achieved including a complete solar block.

REFERENCES:
patent: 1039636 (1912-09-01), Berntlson
patent: 2225699 (1940-12-01), Kastel
patent: 2324038 (1943-07-01), Steele
patent: 2464954 (1949-03-01), Werth
patent: 3124311 (1964-03-01), Kruger
patent: 3249682 (1966-05-01), Laing
patent: 3478759 (1969-11-01), Ehrman
patent: 3557809 (1971-01-01), Vazquez et al.
patent: 4285577 (1981-08-01), Schuler

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