Weathering tester

Details Weathering tester Weathering tester

1991-09-20

1993-07-13

Raevis, Robert

Measuring and testing

Sheet, woven fabric or fiber

G01N 1700

Patent

active

052263185

ABSTRACT:
A weathering testing system comprises a rack for carrying samples to be tested with the samples having inner-facing surfaces, and a lamp centrally positioned of the samples. Blower means are provided for directing a stream of air through the rack. By this invention, the rack may be relatively rotated with respect to the stream of air to provide added uniformity of blowing conditions to the samples. Also, the lamp may be positioned in an adjustable manner so that it can be placed parallel to the rack for optimum radiation. Also the fitting which holds the lamp may be modified so that the lamp may be installed in only a single rotational position, for increased consistency of light irradiation, which gives more uniform calibration. Likewise, an automatic technique for determining ignition and operating of the lamp is disclosed, where a current sensing system found in prior art units can be dispensed with.

REFERENCES:
patent: 2416285 (1947-02-01), Buckingham et al.
patent: 3262001 (1966-07-01), Rijckeart
patent: 3603027 (1971-09-01), Degawa et al.
patent: 3983742 (1976-10-01), Suga
patent: 4627287 (1986-12-01), Suga
patent: 4704903 (1987-11-01), Suga et al.
patent: 4760748 (1988-08-01), Katayanagi et al.
patent: 4843893 (1989-07-01), Huber et al.

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