Patent · US Expired

Connecting means for filter cartridges

US4422790A · kind A · utility

11Cited by

3References

3Claims

0Family size

Assignee

Knecht Filterwerke GmbH · DE

Inventors

Hans Gebert · Sankt Augustin, DE
Manfred Loffelhardt · Löwenstein, DE
Gerhard Obernosterer · Öhringen, DE

Key dates

Filing date	Mar 25, 1982
Grant date	Dec 27, 1983
Priority date	—
Expiry date	Mar 25, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T403/557
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

For lubricating-oil filters for combustion engines, wherein the space available for the installation and removal of the filter cartridge is very confined, there are provided, instead of one filter cartridge, at least two filter cartridges which are axially arranged in series one behind the other. In order to allow these filter cartridges to be installed or removed without difficulties, there is proposed for the connection of these filter cartridges an articulated connecting means which ensures that the filter cartridges can be tilted relative to each other. A clip hinge or a wire or plastics-material strip, provided with clasps or detents, can be used as the connecting means.

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