Sensor protection for a compressed air tank
US4912981A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1989 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Feb 6, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0636
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor assembly and a protection device for use in conjunction with an air pressure tank. The sensor assembly consists of sensors that each act to give a visual indication when the pressure within the air pressure tank exceeds a preselected actuating pressure for the individual sensor. By observing the status of the sensors, an operator can quickly arrive at an approximation of the pressure within the air pressure tank. The sensor protection comprises a vapor separation unit that is disposed on the line that connects the air pressure tank to the sensor assembly. This protection unit acts to remove any vapor or fluids from the compressed air before it will reach the sensor unit. Due to the nature of the sensor units utilized, if the vapor or fluid were to reach the sensor units, it could clog them and prevent their operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.