End-cap structure of oil filter for vehicle
US8920641B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 6, 2014 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jan 6, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/342
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein is an end-cap structure of an oil filter for vehicles. The end-cap includes a base cap which has a hole in a central portion thereof, and a hook cap which is installed in the hole so as to be movable upwards or downwards. In this structure, a surface of the hook cap that comes into contact with the base cap when the hook cap moves upwards is a sealing portion. When the hook cap moves downwards, the sealing state is released and a bypass is formed. According to the structure of the present invention, since the sealing portion of the end-cap can be protected from heat, the quality of the product, the productivity, the economic efficiency, etc. can be enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.