CRANKL a UK patented mechanical torque limited tightening tool, made from acetal plastic in a single mould. Its geometry means that it flexes at a pre-determined tightening torque.

About

CRANKL is a Patented (GB) mechanical torque limited tightening tool.  Made from acetal plastic in a single mould. Rather than the commonplace metallic tools containing ratchets and sprung levers, CRANKL is a single-piece, ultra-low-cost solution to low-torque value requirements. The company is focusing on two key use-cases, one is the amateur cyclist who wishes to accurately verify correct tightening of all fixings on their bicycles.  The other application is that of surgical instruments, where currently expensive tools are used that must be sterilised between each application.  CRANKL could mean that similar performance is achieved from a disposable wrench, thereby significantly reducing the cost of use, and simplifying the procedure.  Having now secured Patent protection, the company is exploring all commercialisation routes.  Of immediate interest is licencing the intellectual property per market vertical, be that cycling/sports, or medical.  The company is also considering feedback from retailers, and manufacturers, and if more development/optimisation work is deemed necessary prior to a deal being struck, this is also possible. The company would like to hear from interested parties, from those that would simply want to have exclusive retail agreements for it in certain markets/geographies, through to those companies that would like to licence the technology and develop it further for their own needs.  The tools to date prove the system works, all tools have been machined from solid Acetal material. This manufacturing process is not suitable for mass-manufacture, and tooling is therefore still required to enable the tools to be manufactured by injection moulding techniques.  Whilst this is very much achievable, such development has not yet been performed, as such tooling then forces a commitment to tool form-factor etc., whilst our preference would be to have more engagement with potential partners/clients prior to ‘signing’ off tooling. GB Patent is now granted.  The technology is demonstrable, and the tool works reliably with the chosen material for >1000 uses without significant performance degradation.   

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