Miniature electronic pressure gauge
US5191797A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Oct 11, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A miniature electronic pressure gauge is described comprising a case (10) having an aperture leading to a transducer (1) connected to an amplifier (3), the transducer (1) and amplifier (3) being powered from a power source (2) in the form of a storage battery such as a Nicod battery. A pressure signal from the amplifier (3) is fed to a linearization circuit (4) and to an analogue/digital converter (6) clocked with pulses from clock generator (5). The output of converter (6) is fed to a decoder/driver (7) for a seven segment L.C.D. (8). In a preferred construction the pressure gauge is releasably retained in a fluid-tight engagement in a bore in the wall of a pressure chamber of a paint spray gun.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.