US 12,268,564 B2
Blanks and methods for the manufacture of at least one molded blank
Lothar Volkl, Goldbach (DE); Stefan Fecher, Johannesberg (DE); and Andreas Gebhardt, Langenselbold (DE)
Assigned to Dentsply Sirona Inc., York, PA (US)
Filed by DENTSPLY SIRONA Inc., York, PA (US)
Filed on Sep. 12, 2017, as Appl. No. 15/701,522.
Prior Publication US 2019/0076222 A1, Mar. 14, 2019
Int. Cl. A61C 13/08 (2006.01); A61C 13/00 (2006.01); A61C 13/083 (2006.01); A61C 13/087 (2006.01); A61C 13/09 (2006.01); A61C 13/20 (2006.01); C04B 35/488 (2006.01)
CPC A61C 13/081 (2013.01) [A61C 13/0003 (2013.01); A61C 13/0022 (2013.01); A61C 13/206 (2013.01); C04B 35/488 (2013.01); A61C 13/083 (2013.01); A61C 13/087 (2013.01); A61C 13/09 (2013.01); C04B 2235/3463 (2013.01); C04B 2237/348 (2013.01); C04B 2237/405 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A blank for the production of a molded body, the blank comprising:
A carrier base having an upper side surface and an underside surface being separated by a thickness B, therebetween, and
a plurality of regions projecting from either the upper side surface of the carrier base, the underside surface of the carrier base, or both the upper side surface and the underside surface of the carrier base;
wherein the carrier base is of a material different than that of the plurality of regions;
wherein at least two regions of the plurality of regions project from the carrier base by a thickness V1 to form a valley at least partially defined by empty space between opposing side surfaces of the at least two regions of the plurality of regions and the upper side surface of the carrier base extending therebetween;
wherein the thickness B of the carrier base extending between the at least two regions is less than the thickness V1 of the at least two regions and wherein the blank has not previously been milled, and,
wherein the carrier base is adapted to fit in a milling machine by including a limb as part of the carrier base that extends parallel to a plane defined by the blank and that is connected to an upstanding edge of the carrier base that limits the blank peripherally.