Patent ID: 7008197
Filing Date: 2006-03-07
Classification: F04B

Abstract:
1. A debris evacuation apparatus for use in a pumping apparatus comprising, in combination: a first seal positioned circumferentially about said debris evacuation apparatus; a first groove located south of said first seal; at least one port extending through said first groove to a passage within an interior of said debris evacuation apparatus; a main shaft located south of said first groove; and a screw-in insert located south of said first groove; wherein said screw-in insert is open at a south end thereof to receive a flow of fluid, and wherein at a north end of said screw-in insert there is located a closed center section surrounded by a plurality of angled veins, so that fluid travelling north within said screw-in insert will be blocked by said center section and forced through said angled veins, with said angled veins imparting rotation to said fluid as it travels northward.