Patent ID: 11933339
Assignee: PARKER-HANNIFIN CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A fitting assembly comprising:
a nut having a first end and a second end opposite from the first end;
a visual indicator assembly positioned on the first end of the nut, the visual indicator assembly comprising a plurality of visual indicators that provide a visual indication of a torque level being applied to the nut;
a sleeve attached to the nut and including a window through which a portion of the plurality of visual indicators is visible based on the torque level being applied to the nut; and
a resilient member that couples the sleeve to the nut;
wherein as the nut is rotated to apply torque to the nut, the resilient member biases the sleeve in a fixed position and the nut rotates relative to the sleeve, whereby the visual indicator assembly rotates relative to the sleeve to alter which portion of the visual indicator assembly is visible through the window to provide a visual indication of when the torque level being applied to the nut is a desired operational torque level.