Loading patent…
AssigneeEngentus Pty Ltd
InventorsBrian Eric BRADSHAW, Tom Peter BASKOVICH, Sam William TURNBULL
Estimating the term…
A threaded male member 12 for a fastening arrangement has a reaction portion 16, such as a splined end or engagement portions in a threaded end. The threaded male member can have an internal or external secondary reaction portion 16.1 and a fail region 17. A tool 36 can have concentric sockets having a first socket 38 to engage the reaction portion 16 and a second socket 40 to engage the nut 18. An anti-rotation device 28 can be applied to the reaction portion and a nut 18 after fastening. A retainer 119 can engage with the reaction portion or the fail region 17. The retainer can bias the nut in a tightening direction. Rate of change in applied torque (ΔT) relative to a change in rate of change of angle (ΔA) of rotation can be sensed and used to determine correct tightening.
A tool arrangement for engagement with a fastener assembly, the fastener assembly having threadingly inter-engageable male and female fasteners, wherein the female fastener includes an internal thread, and the male fastener has a threaded male member and at least one reaction portion;
A method of applying the torque to a fastening assembly having an internally threaded female fastener and a male fastener with a threaded male member, the method including detecting reduction in rate of change of torque versus angle of rotation of the female fastener relative to the threaded male member when the fastening assembly transitions from elastic to plastic strain.
Dependencies are inferred from the claim text.