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US 9,770,247 B2Granted
Method for manufacturing disposable rotary cutting tools and disposable rotary tool for dental or medical applications
AssigneeStraumann Holding AG
InventorStephane Courvoisier
Life of this patent
Estimating the term…
Abstract
The shank (12) of a disposable rotary cutting tool (10) comprises a pipe section (16) cut from a drawn metal pipe. The tool head (14) is formed from a cut-out (18a, 18b) of a drawn metal sheet or a section of a metal tube by non-cutting machining. The pipe section (16) and the tool head (14) are advantageously attached by force fitting.
Claims4
A disposable rotary cutting tool for dental applications comprising:
- a tubular tool shank comprising a drawn metal pipe section having a uniform diameter over its entire length;
- a tool head comprising a drawn metal tube section having a uniform diameter over its entire length, wherein the tool head has a first open end and a second open end, the first open end of the tool head has a crown of saw teeth forming a circumferential cutting surface, the crown of saw teeth having the same diameter as the rest of the tool head;
- wherein the second open end of the tool head, opposite the first open end, comprises a bushing, wherein the tool shank is inserted into the bushing, wherein the tool head is force fit connected to the tool shank;
- and
- a fastening connector that is connected to the tubular tool shank.
2 more elements
Dependencies are inferred from the claim text.