The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 06, 1998
Filed:
Oct. 20, 1995
Applicant:
Inventors:
Teresa R Hickok, Chula Vista, CA (US);
Claude E Martin, Chula Vista, CA (US);
Assignee:
San Diego Swiss Machining, Inc., Chula Vista, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433166 ; 433119 ; 427250 ; 427299 ;
Abstract
An ultrasonic dental tip that is hardened by a novel process that includes roughing the tip and then applying a metal nitride coating, such as titanium nitride (Ti--N) or zirconium nitride (Zr--N). The roughing is preferably accomplished by sandblasting the tip with a microblaster. Optionally the tip may be heat treated after it has been roughened and prior to being coated in order to further increase its hardness.