Vacuum gauge
US7165458B2 · kind B2 · utility
0Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2003 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Jun 6, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L21/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermal conductivity type pressure gauge comprises a gauge head (2) being rotatably mountable in a vessel whose environmental pressure is to be measured and an elongate electrical filament (6) mounted in the gauge head, the gauge head (2) having an inlet where through the electrical filament is exposed to the environmental pressure within the vessel and the filament (6) having directional component lengths in two orthogonal axes, one of the orthogonal axes X—X being parallel to the axis of rotation of the gauge head (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.