Portable metered flow apparatus for calibration/bump testing
US8122753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2008 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Mar 5, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8208
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A portable metered flow apparatus for accurately providing calibration gas from a calibration gas source to a gas monitoring instrument in order to permit calibration/bump testing of the instrument comprising a regulator and a gas delivery device that includes a solenoid valve, an electronic timing circuit, a device for providing power to the solenoid valve and the electronic timing circuit, a power switch for activating the electronic timing circuit, a device for activating the release of calibration gas; and optionally one or more LED lights. A method for calibration/bump testing of a gas monitoring device utilizing the portable metered flow apparatus is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.