Method for magnetizing a filter

Abstract

A method of magnetizing a filter is disclosed. Magnetizing a filter improves the ability of the filter to remove ferromagnetic contaminants from a fluid by allowing the filter to attract and catch contaminants that have metallic properties. The method involves magnetizing the metal components of the filter, which include the filter canister, the filter end cap, the filter element frame, and any other components made from ferromagnetic materials.

1 . A method of magnetizing a filter comprising the steps of:
 providing a filter having a ferromagnetic canister;   providing a magnetizer; and   moving said filter through said magnetizer to magnetize said ferromagnetic canister.   
   
   
       2 . The method of magnetizing a filter of claim one including the further step of providing a filter element having a metal frame disposed within said ferromagnetic canister wherein said metal frame is also magnetized in the magnetizer. 
   
   
       3 . The method of magnetizing a filter of claim one including the further step of providing a magnetic end cap wherein said end cap is also magnetized in the magnetizer. 
   
   
       4 . The method of magnetizing a filter of claim one wherein said magnetizer is made from two permanent magnets having a central bore there-between. 
   
   
       5 . The method of magnetizing a filter of claim one wherein said magnetizer is made from a multiplicity of electromagnets. 
   
   
       6 . The method of magnetizing a filter of claim one wherein said filter is an oil filter. 
   
   
       7 . The method of magnetizing a filter of claim one wherein said filter is a hydraulic fluid filter. 
   
   
       8 . The method of magnetizing a filter of claim one wherein said filter is a transmission fluid filter. 
   
   
       9 . The method of magnetizing a filter of claim one wherein said filter is a fuel filter.