Annunciator readout unit

Details Annunciator readout unit Annunciator readout unit

F - Mech Eng,Light,Heat,Weapons

21

Q

240/69

F21Q 3/00 (1980.01)

Patent

CA 1075653

ABSTRACT An annunciator readout unit for continuously monitoring and indicating to an operator of a machine such as a grain dryer, the condition and stage of the grain drying process and further including warnings and unusual conditions including a grid structure surrounding a plurality of indicating lights with sealing material between the backing plate and the grid structure and further including composite layers of masks, opaque sheets, a thick clear plastic sheet and a top indicating sheet including a mask portion mating with the grid structure and including a clear and colored panels overlying the various indicator lights with printed material formed thereon and wherein due to the structure of the composite sheets light from a particular light source does not fringe into adjacent chambers.

269235

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