Abstract: Apparatus for limiting torque comprising a torque ring rotatably seatable upon a plug and a torque collar securable to the plug and holding the torque ring rotatably captive. Torque ring includes a torque ring aperture and an axially-protruding resilient finger. Torque collar includes a torque collar aperture and a finger aperture. Closing-direction torque applied to torque ring is transferred to torque collar and then to plug to rotate plug in the closing direction. Rotation continues until torque overcomes a resisting force wherein finger disengages from finger aperture, torque ring rotates relative to torque collar, and the amount of closing-direction torque that can be applied is limited. Opening-direction torque and rotation of plug is without limit. Over-compressing or under-compressing of gaskets can be eliminated and containers can be inhibited and/or prevented from leaking. The apparatus is compatible with both new and used plugs.

Abstract: Apparatus for limiting torque comprising a torque ring rotatably seatable upon a plug and a torque collar securable to the plug and holding the torque ring rotatably captive. Torque ring includes a torque ring aperture and an axially-protruding resilient finger. Torque collar includes a torque collar aperture and a finger aperture. Closing-direction torque applied to torque ring is transferred to torque collar and then to plug to rotate plug in the closing direction. Rotation continues until torque overcomes a resisting force wherein finger disengages from finger aperture, torque ring rotates relative to torque collar, and the amount of closing-direction torque that can be applied is limited. Opening-direction torque and rotation of plug is without limit. Over-compressing or under-compressing of gaskets can be eliminated and containers can be inhibited and/or prevented from leaking. The apparatus is compatible with both new and used plugs.