Apparatus and method for determining machine operator status
US6620108B2 · kind B2 · utility
21Cited by
16References
12Claims
0Family size
Inventors
Key dates
| Filing date | Dec 26, 2001 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Dec 26, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2040/0836
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for assuring that a machine operator is not under the influence of a chemical, comprising a first sensor positioned proximally to the machine operator and adapted for, measuring a vapor concentration proximal thereto, a second sensor positioned distally from the machine operator and adapted for measuring the vapor concentration distally from the operator, a device for comparing the proximal and distal vapor concentrations, and an automated remediating device responsive to the comparing device when the ratio of the first and the second vapor concentrations are within a specified range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.