Annunciator readout unit
US4126855A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1976 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | Nov 29, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B5/36
- WIPO fieldControl
- WIPO sectorInstruments
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 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.