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US Patent 11759922 Screw-driving tool and corresponding screw

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11759922
Patent Inventor Names
Christian Tissieres
Date of Patent
September 19, 2023
Patent Application Number
15741929
Date Filed
July 6, 2016
Patent Citations
‌
US Patent 8182187 Drive system
‌
US Patent 8291795 Fastener system with stable engagement and stick fit
‌
US Patent 7147421 Screw and screwdriver
‌
US Patent 7293949 Spiral drive fastener with friction engageable surface
Patent Primary Examiner
‌
Orlando E Aviles Bosques
CPC Code
‌
B25B 15/005
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F16B 23/003
‌
F16B 23/0053
Patent abstract

The invention relates to a screwing tool with a longitudinal axis X comprising a first, drive part, which can receive torque, and a second, transmission part, which is designed to cooperate with a screw, in order to re-transmit to it the torque received, the second part having a conical peripheral envelope with three longitudinal concavities with conical generatrices, defining three identical radial transmission lobes, each of which has, in a cross-section perpendicular to the longitudinal direction, a distal tangential portion which extends according to an arc of a circle, and is extended on both sides by two connection portions, each of which is defined by a curve comprising a substantially radial main part, and having a point of inflection before re-joining a proximal joining region which ensures the joining with an adjacent connection portion. The joining regions have a cone angle which is smaller than the cone angle of the tangential portions, and is substantially less than 5°, preferably less than 3°.

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