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:
Jul. 05, 2016
Filed:
Feb. 22, 2010
Applicants:
Michael C. Anderson, Palmetto, FL (US);
John F. Bozman, Bradenton, FL (US);
Inventors:
Michael C. Anderson, Palmetto, FL (US);
John F. Bozman, Bradenton, FL (US);
Assignee:
DENTSPLY International Inc., York, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/00 (2006.01); A61C 7/08 (2006.01); B29C 51/02 (2006.01); A63B 71/08 (2006.01); B29C 47/00 (2006.01); B29C 51/10 (2006.01); B29K 25/00 (2006.01); B29K 27/06 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
A61C 7/08 (2013.01); B29C 51/02 (2013.01); A63B 71/085 (2013.01); B29C 47/0021 (2013.01); B29C 47/0054 (2013.01); B29C 47/0057 (2013.01); B29C 47/0069 (2013.01); B29C 51/10 (2013.01); B29C 2791/006 (2013.01); B29K 2025/00 (2013.01); B29K 2027/06 (2013.01); B29K 2995/0029 (2013.01); B29L 2031/7536 (2013.01); Y10T 428/24479 (2015.01);
Abstract
Thermoforming of plastic sheets over a model includes varying the thickness in the area that is stretched over the model so that when it thins it becomes more uniform in thickness. The plastic sheet is fabricated in a substantially uniform thickness but with a preformed a complex profile or 3D area that partially builds in part of the area that would be stretched so that it thins much less than a flat sheet. Combinations of these elements may also be made.