Liquid purification or separation – Processes – Using magnetic force
Patent
1992-12-29
1994-05-24
Savage, Matthew O.
Liquid purification or separation
Processes
Using magnetic force
210222, 184 625, 335304, 335305, B01D 3506
Patent
active
053146255
ABSTRACT:
The external oil pan magnet (10) is placed on the external surface of the oil pan (2) where it attracts and captures metallic particles suspended in a motor's oil supply. In a first embodiment, the external oil pan magnet (10) is comprised of magnet (12) coupled to a channeled shield (14). The shield (14) leaves at least one surface of the magnet exposed and amplifies the magnetic force of the magnet. The exposed surface magnetically attaches to the external surface of the oil pan (2). After the oil is drained during normal maintenance, the operator slides the magnet assembly across the bottom of the pan and over the oil pan plug hole. Metallic debris is evacuated through the oil pan plug hole. The plug is replaced and the oil supply replenished. In a second embodiment, the magnet assembly is configured to encircle the oil pan plug. The magnet temporarily magnetizes the plug which attracts metallic debris from the oil.
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