Pre-filter oil inspection screen
US5316665A · kind A · utility
Inventor
Key dates
| Filing date | Oct 16, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Oct 16, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/17
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is a disk-shaped screen adapted for removable placement onto one end of a standard-type oil filter. When the screen is placed on the oil filter, it is located in an area bounded by the oil filter's mounting gasket and it overlies the filter's inlet ports. The screen is made of a wire mesh having approximately 1600 openings per square inch. The screen functions to collect larger-sized particles from the oil stream before they enter the interior of the oil filter. By collecting these particles in a readily viewable manner, the screen enables a person to easily determine from the types and size of collected particles if any unusual engine wear has occurred or if the engine has suffered internal damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.