Aneroid volume determining system
US5022261A · kind A · utility
Inventors
Key dates
| Filing date | Jan 4, 1990 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Jan 4, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6888
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An aneroid volume determining system includes an airtight chamber for holding a subject whose volume is to be detected; a volume adjuster including an inflatable container for varying the pressure in the chamber; sensing equipment including a pressure transducer for sensing the pressure in the chamber in the deflated and inflated states of the container; and controlling equipment, which can calculate the volume of the subject in response to the pressure sensed in the chamber with and without the subject present in the chamber and which equipment provides control signals to the volume adjuster for automatically controlling the inflation and deflation of the inflatable container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.