Patent · US Expired

Filter with safety element for filtering engine oil

US6177003A · kind A · utility

34Cited by

3References

3Claims

0Family size

Assignee

Filterwerk Mann & Hummel GmbH · DE

Inventors

Herbert Jainek · Heilbronn, DE
Roland Wiederhold · Cologne, DE

Key dates

Filing date	Jun 15, 1999
Grant date	Jan 23, 2001
Priority date	—
Expiry date	Jun 15, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01M1/20
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter for filtering the lubricating oil in an internal combustion engine. The filter comprises a housing (10) having an unfiltered oil inlet and a filtered oil outlet. A filter element (16) is disposed in the housing (10). A cover (13) is provided with a safety element (20) which effectively prevents the housing (10) from being closed by the cover (13) if the filter element (16) is missing. The safety element is a tipping member affixed to the housing or the cover and which tips under the force of gravity into a blocking position when the filter element is missing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.