US 11,719,344 B2
Rod packing
Pascal Mahieux, Colleret (FR)
Assigned to COMPRESSOR PRODUCTS INTERNATIONAL, LLC, Stafford, TX (US)
Filed by Compressor Products International, LLC, Charlotte, NC (US)
Filed on Aug. 31, 2021, as Appl. No. 17/463,334.
Application 17/463,334 is a continuation of application No. 15/592,391, filed on May 11, 2017, abandoned.
Claims priority of provisional application 62/337,635, filed on May 17, 2016.
Prior Publication US 2022/0120347 A1, Apr. 21, 2022
Int. Cl. F16J 15/44 (2006.01); F04B 53/16 (2006.01); F04B 53/14 (2006.01); F04B 39/00 (2006.01); F04B 53/02 (2006.01); F04B 39/04 (2006.01)
CPC F16J 15/442 (2013.01) [F04B 39/0005 (2013.01); F04B 39/0022 (2013.01); F04B 39/041 (2013.01); F04B 39/042 (2013.01); F04B 39/045 (2013.01); F04B 53/02 (2013.01); F04B 53/143 (2013.01); F04B 53/144 (2013.01); F04B 53/164 (2013.01); F04B 53/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A packing ring set for a rod, comprising:
a first ring having an inner diameter, an outer diameter, a radial width equal to the outer diameter less the inner diameter, and a first axial thickness, the first ring comprising:
a plurality of segments, each of the plurality of segments including an interface surface that extends between a leading surface and a stop surface, each of the plurality of segments also including a radially extending relief channel formed therein, the interface surface extending tangentially from the radially extending relief channel, such that each of the plurality of segments is slidably movable along the interface surface until its leading surface abuts a stop surface on an adjacent one of the plurality of segments;
a second ring comprising:
a first portion having a first portion inner diameter and a first portion outer diameter, the first portion inner diameter being substantially equal to the first ring inner diameter; and
a second portion having a second portion inner diameter substantially equal to the first ring outer diameter and a second portion outer diameter substantially equal to the first portion outer diameter, the second portion having an outer surface with a groove formed therein, the first portion and second portion together form a shelf sized to accommodate the first ring, the shelf portion has a second axial thickness equal to the first axial thickness, and the first portion and second portion together have a third axial thickness equal to the first axial thickness plus the second axial thickness;
wherein the second ring is formed into a plurality of segments, each of the plurality of segments of the second ring includes a pair of interface surfaces at opposite ends of the segment, each of the interface surfaces is a tangential through cut and does not terminate at any of the leading surfaces or stop of the first ring; and
an elastic member disposed in the groove providing a compressive force on the second ring and the first ring.