John Lance Nielsen
Engineers in Cottonwood Heights, UT
License number
Utah 354085-2202
Issued Date
Oct 24, 2001
Expiration Date
Mar 31, 2017
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Cottonwood Heights, UT
Education
BRIGHAM YOUNG UNIVERSITY, Aug 1, 1999
BRIGHAM YOUNG UNIVERSITY, Apr 1, 1998
Personal information
See more information about John Lance Nielsen at radaris.comName
Address
Phone
5011 W Currant Dr, South Jordan, UT 84095
505 W 10200 S, South Jordan, UT 84095
5059 W 11000 N, Highland, UT 84003
455 Michael Cir, Santa Clara, UT 84765
4714 S 700 E APT 29, Salt Lake Cty, UT 84107
Professional information
See more information about John Lance Nielsen at trustoria.com
Methods For Manufacturing Endodontic Instruments From Powdered Metals
Methods For Manufacturing Endodontic Instruments From Powdered Metals
US Patent:
7743505, Jun 29, 2010
Filed:
Feb 23, 2005
Appl. No.:
11/063757
Inventors:
Paul Lewis - Midvale UT, US
John Nielsen - Cottonwood Heights UT, US
John Nielsen - Cottonwood Heights UT, US
Assignee:
Ultradent Products, Inc. - South Jordan UT
International Classification:
B21F 43/00, B23P 13/00
US Classification:
2989611, 298961, 29882, 72205
Abstract:
Endodontic instruments or intermediate products (e. g. , blanks) used to form finished endodontic instruments having a desired cutting edge and/or taper are formed, at least in part, by molding a metal powder into a desired shape and then sintering the metal particles together. The metal powder is initially formed into a green molded part that is sintered to yield a solid metal part. The sintered metal part may optionally be further processed by additional steps, as needed, to yield a finished endodontic instrument. One additional process includes cold forming the sintered metal body to provide a cutting edge, remove cracks and microfissures, or otherwise modify the characteristics of an intermediate product or endodontic instrument. Other processes include chemical milling and mechanical milling, grinding or cutting to sharpen the cutting edge, form a taper, or otherwise modify the intermediate product or endodontic instrument in a desired manner.
Methods For Manufacturing Endodontic Instruments
Methods For Manufacturing Endodontic Instruments
US Patent:
7665212, Feb 23, 2010
Filed:
Feb 23, 2005
Appl. No.:
11/063354
Inventors:
Paul Lewis - Midvale UT, US
John Nielsen - Cottonwood Heights UT, US
John Nielsen - Cottonwood Heights UT, US
Assignee:
Ultradent Products, Inc. - South Jordan UT
International Classification:
A61C 5/10
US Classification:
298961, 409 73, 409192, 433165, 433197, 433198, 433224
Abstract:
Endodontic instruments having a desired cutting edge are formed, at least in part, using a cold forming process. The method of forming the endodontic instrument includes providing a blank metal thread or wire and at least one die that has a negative impression of a cutting edge. The die is pressed against the blank with sufficient force in order for the die to form an at least partially formed cutting edge in the blank. Any desired shape can be formed into the blank by selecting a die with the proper corresponding negative impression. Cold forming techniques suitable for forming endodontic instruments include roll forming, flat rolling, radial forming, cold drawing, and similar techniques. The files can be sharpened or otherwise modified before or after cold-forming using techniques such as cutting, grinding, and chemical milling.