Waterproof and fog resistant gauge
US5528934A · kind A · utility
3Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Jun 25, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D11/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A waterproof and fog resistant gauge (10) includes a housing (12) forming a chamber (14) with a base (18) and opposing open end (16). The open-end (16) is enclosed by a bezel (60) compressing a pair of lenses (50, 52) spaced by a gasket (46) against and to the housing (12). The spaced lenses (50, 52) provides a "dead air" space between the lenses (50, 52) preventing air from entering or exiting. The housing (12) also includes an aperture (70) covered by an anaerobic filter (72) which allows the chamber (14) to breath while preventing water and other contaminants from entering the gauge (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.