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Weather resistance tester

  • US 4,817,447 A
  • Filed: 06/17/1987
  • Issued: 04/04/1989
  • Est. Priority Date: 06/17/1986
  • Status: Expired due to Term
First Claim
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1. A weather resistance tester comprising:

  • (a) a U.V. radiation source comprising a lamp for generating U.V. radiation;

    (b) a reflector having the U.V. source accommodated therein and an opening at a lower portion thereof for permitting the lamp to project U.V. radiation downward through the opening;

    (c) a shield panel provided in the opening of the reflector and closing the opening for transmitting U.V. radiation therethrough and substantially blocking water vapor therefrom;

    (d) a sample support disposed below the opening;

    (e) means for adjusting the temperature in operative relation with the sample support;

    (f) a compartment having accommodated therein the U.V. source, the reflector, the shield panel, the sample support and the temperature adjusting means;

    (g) a recycling duct having an intake portion and an outlet portion connected to the compartment and provided with a heat exchanger and means for blowing air;

    (h) a humidifier in operative relation with the sample support for providing a condensation condition therearound; and

    (i) control means for giving operational instructions to the U.V. source, the temperature adjusting means, the heat exchanger, the blower means and the humidifier to maintain a sample on the sample support at a predetermined temperature while the lamp is on and to subject the sample to a condensation condition while the lamp is off.

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