Methane watchdog system, a cost effective approach to longwall methane monitoring and control
US12031888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2021 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Feb 22, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F1/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various examples are provided related to methane detection in harsh environments. In one example, a method includes drawing a sample of air from at least one first location; delivering the sample to a volume within a sensor block at a second location, where the sensor block includes a gas concentration sensor in communication with the volume; and where a vacuum is applied to the volume within the sensor block to facilitate delivery of the sample to the second location. In another example, a system includes a sampling unit that houses a sensor block, where a sample tube is coupled to an inlet of the sensor block, which includes a gas concentration sensor; an ejector that facilitates delivery of a sample of air from the first location via the sample tube; and a control unit that can receive a gas concentration sensor output from the sampling unit for processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.