Filter having an automatic control of flow
US9850141B2 · kind B2 · utility
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2References
4Claims
0Family size
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Key dates
| Filing date | Sep 17, 2015 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | May 31, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/445
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention discloses a filter with an automatic control of flow, which contains a housing having a water inlet and a water outlet on one end, a bottom cover connecting to the other end of the housing and a filter material provided in the housing, comprising an outlet end fluidly connecting with the water outlet through a flow control unit. Based on the structure design of the flow control unit, the filter of the present invention can remind users to replace the filter materials in an easy and visible way at the time when the filter materials reach the end of working period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.