Additive dispersing filter and method of making
US7481923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2007 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Aug 28, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D27/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter, comprising: a housing defining an inlet fluid opening and an outlet fluid opening, the inlet fluid opening and the outlet fluid opening defining a fluid path through the filter; a filter element disposed inside the filter housing, the filter element being disposed in the flow path such that fluid flowing through the flow path must pass through the filter element; and a dispersement device disposed within the housing, the dispersement device comprising a housing having at least one chamber for an additive disposed within the at least one chamber, the dispersement device further comprises a metering opening that is sealed with an oil soluble material the metering opening being in fluid communication with the at least one chamber when the oil soluble material is removed from the metering opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.