A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/3
A61C 17/00 (2006.01) A61C 1/07 (2006.01) A61C 17/20 (2006.01)
Patent
CA 1168071
21570 Abstract of the Disclosure An air-driven dental scaler (10) is disclosed having water transport means associated with the tool assembly for delivering water to a scaling type work tool (26). The water transport means comprises a tube (134) disposed within a hollow connector body (20) and extending between a water plenum (108) at one end of the connector body (20) to the other end of the connector body, whereat the scaling type work tool (26) is attached. The water transport tube (134) has an internal diameter of greater than 0.010 inch and a surface roughness smoother than 25 micro-inches to minimize clogging of the tube by mineral deposits or sediment. The independent fluid path permits the use of hard, martensitic stainless steels for the work tool (26) and softer, corrosion-resisting austenitic stainless steels for the water transport tube (134). The water transport means delivers a controlled quantity of water to the work tool (26) and the water is atomized by the vibratory movement of the tool (2.6).
345758
Knopp Arthur A.
Nash John E.
Johnson Douglas S. Q.c.
Syntex (u.s.a.) Llc
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