Wiper assembly for optical surfaces in a chilled mirror hygromet

Details Wiper assembly for optical surfaces in a chilled mirror hygromet Wiper assembly for optical surfaces in a chilled mirror hygromet

1994-10-24

1996-07-30

Spisich, Mark

Measuring and testing

Gas analysis

Moisture content or vapor pressure

15250003, 1525015, 1525029, G01N 1910

Patent

active

055400809

ABSTRACT:
A wiper assembly for cleaning optical surfaces. The structure comprises a pneumatically activated wiper element including a wiping member connected to a spring member disposed within a cylinder. The wiper element is actuated by air pressure generated by a pumping element. The wiping member is connected to an end of a piston rod which passes longitudinally through the cylinder. When activated, the wiping element moves across an optical surface to be cleansed, and at a conclusion of its return stroke, has removed during its simple return stroke, frost, hydrocarbons, entrained particulate material and moisture from the optical surface.

REFERENCES:
patent: 3158935 (1964-12-01), Rosenthal
patent: 4527301 (1985-07-01), Seitz
patent: 4896395 (1990-01-01), Bissell

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