1975-05-27
1976-08-31
Corbin, John K.
350 96B, 350 96GN, 350175GN, G02B 1104, G02B 514
Patent
active
039777618
ABSTRACT:
A plastic casing in which bar lenses are imbedded is formed with longitudinal grooves in the sides thereof. The bifurcations of a bifurcated pull rod are guidingly slidable in the grooves. A frame is connected to the pull rod for movement therewith and has portions facing the end faces of the bar lenses to which is fixed a cleaning material such as cloth. Movement of the pull rod, frame and cleaning material results in the cleaning material moving over the faces of the bar lenses to clean the same.
REFERENCES:
patent: 3402418 (1968-09-01), Leroy
Ide Masataka
Kawamura Atsushi
Kawazu Motoaki
Corbin John K.
Henry Jon W.
Jordan Frank J.
Ricoh Co. Ltd.
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