William H Nooning
Accountancy at Perry St, Westminster, CO
License number
Colorado 4117
Issued Date
Nov 4, 1976
Renew Date
Dec 1, 2015
Expiration Date
Nov 30, 2017
Type
Certified Public Accountant
Address
Address
10301 Perry St, Westminster, CO 80031
Professional information
Dental Impression Handling Tool And Method
US Patent:
5393227, Feb 28, 1995
Filed:
Feb 25, 1994
Appl. No.:
8/201826
Inventors:
William H. Nooning - Westminster CO
Assignee:
KeyPro Innovations, Inc. - Denver CO
International Classification:
A61C 1900
US Classification:
433 74
Abstract:
A dental impression handling tool consists of two base structures shaped to approximate two opposite quadrants of a full dental arch, and two similarly-shaped inserts that snap fit into the base structures. Each base includes a wide, upward facing trough approximating the placement and curvature of teeth within a dental quadrant. The upper surface of each insert is attached to a positive dental mold by means of protrusions that extend from the top horizontal surface of the insert, the protrusions being encased within the mold material. Positive positional relationship is maintained between each base and its mating insert by the use of an interlocking and non-recurring geometric pattern that is carried by the internal vertical walls of the trough in the base, and by a matching geometric pattern that is carried by the outer vertical walls of two vertically downward extending ribs on the underside of the insert. A second deeper, narrower and centrally located trough is formed in each base. This second trough mates with a third center rib that protrudes from the bottom surface of each insert.