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Down-hole tool filter and method for protecting such tools from fluid entrained debris

  • US 7,188,688 B1
  • Filed: 11/05/2004
  • Issued: 03/13/2007
  • Est. Priority Date: 11/05/2004
  • Status: Expired due to Fees
First Claim
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1. A down-hole tool joint filter assembly comprising tubular sleeve having a disk member attached internally at one end having a plurality of radial slots arranged in expanding concentric circles with said slots in alignment and a pair of parallel slots central to said radial slots said sleeve having a plurality of internal notches located at an end opposite the disk member.

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