Pressure transducer
US4279162A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Nov 23, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0089
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hydraulic pressure transducer comprises a cylindrical housing having a plurality of circumferential inwardly and outwardly directed ribs which axially position and retain coaxially aligned operative components within the transducer. These components include a hydraulic piston and cylinder, a restoring spring disposed between two centering and retaining stabilizer cups, and a biasing spring which maintains the components in compressed juxtaposition to ensure accurate and immediate response while minimizing axial dimensional stack up. The transducer senses hydraulic pressure in, for example, a brake line and provides a variable resistance output which may be used in an auxiliary electric brake system controller commonly used on recreational trailers and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.