Dental turbine

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12178670
APP PUB NO 20210393369A1
SERIAL NO

17292823

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A dental turbine driven by pressurized air comprises a head housing (1) with a turbine chamber (2) and a rotor shaft (3) mounted using an anti-friction bearing (8a) with a non-rotatably mounted turbine wheel (13). The outer race (10a) of the anti-friction bearing (8a) extends into the turbine chamber (2) in axial direction. The turbine wheel (13) comprises an annular web (16a) that is arranged concentrically to the outer race (10a) of the anti-friction bearing (8a) and, together with the outer race (10a), forms a gap seal (17a). This gap seal (17a) extends in axial direction between outer race (10a) and annular web (16a) and prevents the sucking-in of liquids and dirt particles into the turbine chamber (2) during inertial rotation of the turbine wheel (13).

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First Claim

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Patent Owner(s)

Patent OwnerAddress
DENTSPLY SIRONA INC221 W PHILADELPHIA STREET SUITE 60W YORK PA 17401

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Göbel, Stefan Langen, DE 2 0
Goisser, Siegfried Einhausen, DE 15 94

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