Filtration system with filtrate volume indicator
US6287456A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Oct 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8342
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid filtration system includes a mechanism for monitoring and indicating the volume of fluid that has passed through a filter 30. The mechanism includes a channel 42 in communication with a reservoir 22, a portion of which is visible exteriorly of the housing 12. The channel allows a minor portion of the fluid entering the housing via inlet 14 to flow into the reservoir, while allowing the remaining portion of fluid to flow through the outlet 16. The minor portion of fluid entering the reservoir may or may not have passed through the filter. In various embodiments, the system may also include an indicator such as a float 44, a plunger 54, or dye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.