A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 3/02 (2006.01)
Patent
CA 2114846
2114846 9302628 PCTABS00019 A water-cooled friction-type cutting dental tool (10) is disclosed comprising an at least partially hollow cylindrical body portion (12) having an external circumferential surface, an interior circumferential surface (17) defining a hollow space (18), and an external annular transverse end cutting surface (14) at one end. The end cutting surface surrounds a central opening to the hollow space; in the hollow space, a centered elongated member (27) is secured so as to be substantially concentric to and held partially within the hollow space, and partially extending beyond the hollow space, beyond the end cutting surface. The portion (28) of the elongated member extending beyond the end cutting surface has a smooth rounded surface for limiting the cutting depth of the tool, both longitudinally and transversely. The portion within the hollow space has a cross-sectional dimension such that an annular channel is defined between the elongated member and the interior circumferential surface.
Ridout & Maybee Llp
Weissman Bernard
LandOfFree
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