Face Seal, Especially for Cooling Medium Pumps of Motor Vehicles
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United States of America Patent
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Issued Date -
Dec 20, 2007
app pub date -
Dec 16, 2005
filing date -
Dec 17, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A face seal for cooling medium pumps of motor vehicles has a slide ring and a counter ring, wherein the slide ring and the counter ring are forced seal-tightly against one another by a magnetic force of attraction. The slide ring and the counter ring are magnets or one of the rings is a magnet and the other is made from ferromagnetic material. A secondary seal is provided that secures the slide ring.
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