Fluid filter with a central component which can be assembled
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United States of America Patent
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May 27, 2003
Grant Date -
N/A
app pub date -
Aug 13, 2001
filing date -
Sep 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a fluid filter, such as an oil filter for an internal combustion engine, comprising a filter housing which can be closed by a screw lid, a filter element and a central, approximately tubular component which projects into the interior of the filter, whereby the central component has bearing surfaces which are used to fix said component into the filter, so that it cannot rotate. The central component and the filter housing have projections and corresponding undercuts which interact with the projections, in order to fix the central component using a detent or snap-fit connection. The invention is characterized in that the lid, the filter element and the central component can be connected to form a joint installation assembly which is easy to handle, whereby the central component is mounted so that it can be rotated about its longitudinal axis in relation to the lid and that guide elements are provided in the filter housing which interact with the bearing surfaces, in such a way that the latter form of rotational lock for the central component during the mounting of the installation assembly, before the central component is fixed by the detent or snap-fit connection, thus allowing said connection to take place.
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