Smoke alarm device for a grain dryer
US4177461A · kind A · utility
9Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1978 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Jan 23, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02B1/08
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
An alarm device for a grain dryer. The alarm device activating an audio alarm and visual alarm energized electrically by a smoke detector and burner shutdown indicator lamp to warn the dryer operator when a burner is no longer operating or when smoke is detected in the dryer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.