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Patexia Research
Patent No. US 09962167
Issue Date May 8, 2018
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Patent 09962167 - Method for manufacturing disposable rotary cutting tools and disposable rotary tool for dental or medical applications > Claims

  • 1. Disposable rotary cutting tool for dental or medical applications comprising a tubular tool shank and a tool head attached to the tool shank, wherein the tool shank comprises a metal pipe section, the tool head is formed from a cut-out of a metal sheet or a section of a metal tube and the tool head is attached to the pipe section, and wherein the tool head comprises at least two cut-outs forming blades, the blades having complimentary slots that are retracted into one another in a crosswise manner to build the tool head with two crosswise arranged blades.
    • 2. Cutting tool according to claim 1, wherein the metal sheet is a drawn metal sheet and/or the pipe section is a drawn metal pipe section or the tube is a drawn metal tube.
    • 3. Cutting tool according to claim 1, wherein the tool head is manufactured by non-cutting machining.
    • 4. Cutting tool according to claim 1, wherein the tool head and the pipe section are driven one into the other.
      • 5. Cutting tool according to claim 4, wherein the tool head and the pipe section are fastened one to the other by force fitting.
    • 6. Cutting tool according to claim 1, wherein the tool shank comprises a further pipe section axially joined to the pipe section.
      • 7. Cutting tool according to claim 6, wherein the tool shank comprises a fastening connector formed by deformation of the pipe section and the further pipe section, respectively, in an end region away from the tool head.
      • 8. Cutting tool according to claim 6, wherein a fastening connector body is driven into an end region of the pipe section and further pipe section, respectively, away from the tool head.
        • 9. Cutting tool according to claim 8, wherein the fastening connector body is an injection molded plastic part.
    • 10. Cutting tool according to claim 1, wherein the pipe section comprises a radial monitoring window.
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