Additive dispersing filter and method of making
US7588691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2008 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Dec 24, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D27/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of supplying an additive in an oil filter, the method including: forming a dispersement device housing with a first chamber and a second chamber, the second chamber being sealed from the first chamber by a pair of dividing walls; sealing a first metering opening with an oil soluble material the first metering opening being in fluid communication with the first chamber when the oil soluble material is removed from the first metering opening; sealing a second metering opening with an oil soluble material the second metering opening being in fluid communication with the second chamber when the oil soluble material is removed from the second metering opening; disposing a first liquid additive within the first chamber; disposing a second liquid additive within the second chamber; sealing the dispersement device housing with a cap, the cap being configured to seal the first chamber and the second chamber within the dispersement device housing; and securing the dispersement device housing to a filter element of the filter, the filter element and the dispersement device defining an outlet fluid opening, such that fluid flowing into and out of the filter must pass through the filte…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.