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US 12,497,991 B2Granted
Fastener assembly sensor unit
AssigneeSalunda Limited
InventorsAlan Patrick John Finlay, Philip Samuel Pickles, John Mark Newton, Mathew William Davis
Life of this patent
Estimating the term…
Abstract
A sensor assembly for a fastener assembly comprising a nut and a bolt comprises a sensor unit mounted in a cavity in the nut of the fastener assembly having an internal opening in the internal thread of the nut. The sensor unit comprises an optical flow sensor arranged to capture an image of the external thread of the bolt through the internal opening and to sense relative movement of the external thread of the bolt.
Claims25
A sensor assembly for a fastener assembly comprising a nut and a bolt, the sensor assembly comprising:
- the nut of the fastener assembly, the nut having an internal thread for screwing onto an external thread of the bolt and a cavity;
- and
- a sensor unit mounted in the cavity in the nut, the sensor unit comprising an optical flow sensor arranged to capture an image of the external thread of the bolt and to sense relative movement of the external thread of the bolt when the internal thread is screwed onto the external thread of the bolt.
Dependencies are inferred from the claim text.