Oil filter assembly having rotation type drain pin
US9718010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2015 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Nov 12, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/4084
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oil filter module may include a casing and a filter therein. The oil filter module may also include a cap coupled to the casing, and including a drain nipple protruding downward from a portion of the cap corresponding to a bottom support plate of the filter with a drain hole formed in the drain nipple. The oil filter module may further include a drain pin coupled to the drain nipple so as to be removable so that the drain hole is open or closed by the drain pin. A rotation groove having a rotating axis of the casing may be formed in a lower surface of the bottom support plate. The drain hole may be formed at a position corresponding to the rotation groove, and the drain pin may be seated at one end thereof onto a bottom of the rotation groove when the drain pin is coupled to the drain nipple.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.