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Apparatus for extracting wear particles from used oil filters

  • US 5,531,129 A
  • Filed: 09/05/1995
  • Issued: 07/02/1996
  • Est. Priority Date: 09/21/1994
  • Status: Expired due to Fees
First Claim
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1. An apparatus for extracting standardized samples of wear particles from a series of used filters, each filter having an opening extending from one end along an axis, said apparatus comprising:

  • a housing having an interior chamber for receiving said filter;

    means for rotating said filter about said axis within said chamber;

    means for spraying a predetermined quantity of fluid within said opening during said rotation of said filter to produce a standardized sample of said wear particles from each filter; and

    means for rinsing said interior of said chamber of said housing between consecutive filters to prevent cross-contamination of samples.

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