Filter change indicator
US7412896B2 · kind B2 · utility
10Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2006 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Nov 17, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/166
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid system pressure indicator is adapted for use in fluid systems having a filter element. The fluid system force indicator includes a housing partitioned to be exposed to the fluid system to provide transmission of a mechanical force between these partitioned environments to indicate the fluid pressure. This exterior shape change is such that it can be identified through tactile means not requiring visual identification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.