Patent ID: 7713035

Claim:
A pumping apparatus comprising, in combination: a seat plug; a traveling valve coupled at its south end to said seat plug; a pump plunger coupled at its south end to said traveling valve; a plunger adapter having a north end and a south end coupled at its south end to said pump plunger; wherein said plunger adapter comprises, in combination: an interior passage; at least one ring on an exterior portion thereof; at least one circumferential groove on an exterior portion thereof; at least one opening in said circumferential groove and continuing through to said interior passage; wherein said at least one opening is angled so that it opens in an off-centered manner to said interior passage, wherein a size of said angle is sufficient to enable said at least one opening to impart a cyclonic effect on fluid entering therethrough; and a valve rod coupled at its south end to said plunger adapter.