05112479 is referenced by 17 patents and cites 22 patents.

A mobile purification apparatus for purifying oil contaminated with grit, metal particles, water and the like. The apparatus includes a strainer with a filter cartridge for removal of large contaminant particle and a filter apparatus. The filter apparatus including a heater and an upper filter element section with a plurality of filter media layers therein. The filter media layers are supported by a screen and compressed by a biasing spring. A lever is provided for off-loading compression on the filter media layers so a top of the filter apparatus can be removed to allow for cleaning and replacement of the filter media layers.

Title
Oil purification unit with cyclonic reservoir section and filtration section
Application Number
7/530823
Publication Number
5112479
Application Date
May 30, 1990
Publication Date
May 12, 1992
Inventor
Vichai Srimongkolkul
Machesney Park
IL, US
Agent
Leydig Voit & Mayer
Assignee
Micropure Filtration
IL, US
IPC
B01D 36/00
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