US Patent No. 9,931,178

CUTTING INSTRUMENT, IN PARTICULAR DENTAL INSTRUMENT


Patent No. 9,931,178
Issue Date April 03, 2018
Title Cutting Instrument, In Particular Dental Instrument
Inventorship Alain Delval, Le Brassus (CH)
Assignee DENTSPLY SIRONA Inc., York, PA (US)

Claim of US Patent No. 9,931,178

1. A rotary cutting instrument comprising:an active cutting part, the active part being made of a metal carbide;
an intermediate part, the intermediate part is made of stainless steel; and
a handle, the handle is made of a nickel-titanium alloy; and
wherein the intermediate part is located between the active part and the handle and is metallurgically connected to said active part and to said handle.