Odor control device
US4830791A · kind A · utility
125Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 29, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Feb 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/88
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved odor control device including a source of deodorizing olfactory stimuli, a squirrel cage fan for circulating air carrying the stimuli, an electronic circuit providing a visual indicia relating to the status of the power source. A secondary circuit controls indicia means for indicating the elapse of a predetermined span of time from initilization of control of one such span of time for the purpose of alerting the user to examine and/or replace the olfactory stimuli.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.