Importance

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Abstract

a rotatable fastening device with an integral torque limiter that comprises an house component and a coupler assembly wherein the coupler assembly comprises means having at least one springy arm and wherein from the instant of its installation within an inner space of the house component, the springy arm tip is biased to be integrated into a recess of a recesses and protrusions array formed in the house component, and wherein the house component is liable to be actuated by providing a rotatable moment on it, around its lengthwise axis in a manner that as long as the actuated torque being actuated is at a level that does not exceed a pre-set threshold level, the springy arm tip remains integrated within a recess of the recesses and protrusions array of the house component and thus—transfers the torque for turning the 10 coupler assembly concurrently with a rotation of the house component, around the longitudinal axis of the house component and thus—fastening a threadable component to which it is connected; and when the actuated torque is at a level that exceeds the preset threshold level, the springy arm is biased into bending so that its tip is moved unto sinking and is extracted from the recess and pushed unto a sliding movement on the surface area of the array, in a manner that the torque transfer is stopped and the continued rotation of the house component around its lengthwise axis does not lead into a parallel rotation of the coupler assembly and therefore, the fastening of the threadable component is stopped.

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First Claim