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US 11,448,321 B2Granted
Ball valve seal
AssigneeSaint-Gobain Performance Plastics Corporation
InventorsJan Kustermans, Benny Proost, Gabriele Tittonel, Herman M. Dubois, Philippe Burlot, Andrea Maffezzoli, Shabarish Nunna, Andreas Vanvaerenbergh, Filip Rousseau
Life of this patent
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Abstract
A seal for a ball valve comprising a resilient ring defining an engagement feature; a first polymer ring disposed adjacent to a first axial end of the resilient ring and coupled with the engagement feature; and a second polymer ring disposed adjacent to a second axial end of the resilient ring and coupled with the engagement feature.
Claims16
A seal for a ball valve comprising:
- a resilient ring defining an engagement feature;
- a first polymer ring disposed adjacent to a first axial end of the resilient ring and coupled with the engagement feature;
- and
- a second polymer ring disposed adjacent to a second axial end of the resilient ring and coupled with the engagement feature, wherein the first polymer ring comprises a first corresponding engagement feature adapted to engage with the engagement feature of the resilient ring, and wherein the first corresponding engagement feature comprises a barb adapted to engage with the engagement feature of the resilient ring, wherein the first polymer ring may contact the second polymer ring when coupled with the resilient ring.
1 more element
A polymer seal ring comprising:
- an energized zone including at least one energizing element;
- and
- an engagement feature adapted to engage with a resilient ring, wherein the engagement feature comprises a barb with a lip adapted to engage with the resilient ring, wherein the at least one energizing element comprises at least two energizing elements disposed along a same plane, and wherein the engagement feature is coupled with the energized zone and extends perpendicular to the plane.
A method of assembling a seal assembly comprising:
- axially sliding a first polymer ring relative to a resilient ring in a first direction until an engagement feature of the resilient ring engages a first complementary engagement feature on the first polymer ring, wherein the first corresponding engagement feature comprises a barb adapted to engage with the engagement feature of the resilient ring, wherein the first polymer ring may contact the second polymer ring when coupled with the resilient ring.
Dependencies are inferred from the claim text.