Multi-Piece Pressure Operated Rings for a Downhole Pump Plunger
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Apr 7, 2011
app pub date -
Oct 7, 2009
filing date -
Oct 7, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A pressure responsive seal ring assembly includes a first and second arcuate-shaped ring segment configured for non-interlocking assembly onto a plunger body. A tab extends beyond a first end of each ring segment and is received by a recessed portion in the first end of the opposing ring segment. The tabs and recessed portions provide a gap in the outer peripheral surface of the assembled ring. A second tab extends beyond a second end of the second ring segment and is received by a recessed portion in the second end of the first ring segment. Pads provide an inter-space effective for allowing fluid flow between the interior peripheral surface and the plunger body. The ring segments expand radially outward with an increase in pressure to provide a seal and retract radially inward with a decrease in pressure. The ring segments, however, remain connected and resist fluid flow therebetween.
First Claim
Other Claims data not available