Oil filter for use on internal combustion engines
US4369110A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Aug 13, 1981 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Aug 13, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D27/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oil filter for use on internal combustion engines, the filter having a body portion with an interior recess opening therein and with a threaded opening at the recessed end to receive the attachment of a filter cartridge, the body having an oil inlet, an oil outlet and a vent opening, a needle member extending from the body portion centrally of the end adapted to receive the attachment of a filter cartridge, the needle portion being connected with the oil inlet, the filter cartridge having packing material therein, the cartridge being threadably secured to the body so that the needle extends through the packing and, when the filter cartridge is in place, the end of needle is adjacent the cartridge interior bottom, oil passing into the filter flowing through the needle and being discharged within the cartridge and flowing through the packing material and into the body opening and out through the oil outlet, the space between the filter cartridge and the body interior being separated by a plate having steps or ledges with an opening so that oil flowing through the filter material in the cartridge flows through the openings and down over the steps and ledges affording opportunity fo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.