Fluid fitting with torque suppression arrangement
AssigneeSwagelok Company
InventorPaul G. Eidsmore
Life of this patent
Estimating the term…
Abstract
A coupling assembly includes a pair of glands having ends that seal on opposite faces of a seal member. A coupling nut assembly cooperates with the glands to urge the ends against the seal member. A torque suppression assembly is mounted on a groove of the gland to limit rotational forces from the coupling nut assembly to the gland. The torque suppression assembly includes a thrust member that engages the coupling nut assembly and a bearing member that transfers axial make-up forces from the thrust member to the gland and rotates relative to the thrust member to reduce the torque transfer.
Claims8
A fluid coupling assembly for limiting torque transfer therethrough comprising:
- a first annular gland having a through passage that communicates with an end thereof;
- a second annular gland having a through passage that communicates with an end thereof;
- a seal member interposed axially between the ends of the first and second glands;
- a threaded coupling nut assembly for axially urging the gland ends into engagement with the seal member;
- and
- a torque suppression assembly operatively mounted on at least one gland for limiting the transfer of rotational forces from the coupling nut assembly to the at least one gland;
- wherein the torque suppression assembly includes a groove formed in the at least one gland adjacent the end thereof;
- said torque suppression assembly comprising a low friction washer and a thrust member both retained on at least one of said glands;
- said washer abutting a portion of said at least one gland, and said thrust member being axially disposed for abutting engagement with said coupling nut assembly and said washer;
- wherein said thrust member radially captures the washer.
A fluid coupling assembly for limiting torque transfer therethrough comprising:
- a first annular gland having a through passage that communicates with an end thereof;
- a second annular gland having a through passage that communicates with an end thereof;
- a seal member interposed axially between the ends of the first and second glands;
- a threaded coupling nut assembly for axially urging the gland ends into engagement with the seal member;
- and
- a torque suppression assembly operatively mounted on at least one gland for limiting the transfer of rotational forces from the coupling nut assembly to the at least one gland;
- said at least one gland having a groove adjacent the end thereof;
- said torque suppression assembly comprising a low friction washer and a thrust member both retained on at least one of said glands;
- said washer abutting a portion of said at least one gland, and said thrust member being axially disposed for abutting engagement with said coupling nut assembly and said washer;
- wherein a portion of the washer is received in said groove and the thrust member includes a groove for receiving another portion of said washer.
Dependencies are inferred from the claim text.