Infrared gas spectrometer having a lid assembly with an integrated chopper and chopper motor
US5818049A · kind A · utility
21Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1997 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3504
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A respiratory gas monitor for measuring the concentration of certain gases in a respiratory gas stream has a compact and unitary lid assembly having an integral low-profile motor and a cylindrical infrared light beam chopper. The lid assembly also contains a motor position sensor and flex circuit for passing electrical signals through epoxy sealed orifices in the lid to a processing and control unit in the monitor. The flexible circuit uses releasable connectors to facilitate removal of the monitor from an external controller and the removal of the lid assembly from the bottom portion of the monitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.