US 12,280,532 B2
Device for separating a deep-drawn jaw-spanning dental apparatus of thermoform film
Hans-Christian Schneider, Einhausen (DE); and Peter Burger, Bensheim (DE)
Assigned to Dentsply Sirona Inc., York, PA (US)
Appl. No. 17/915,346
Filed by DENTSPLY SIRONA Inc., York, PA (US)
PCT Filed Mar. 11, 2021, PCT No. PCT/EP2021/056143
§ 371(c)(1), (2) Date Sep. 28, 2022,
PCT Pub. No. WO2021/197788, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 20166850 (EP), filed on Mar. 20, 2020.
Prior Publication US 2023/0144773 A1, May 11, 2023
Int. Cl. B29C 51/44 (2006.01); A61C 7/08 (2006.01); B29C 51/08 (2006.01); B29C 51/46 (2006.01); B29L 31/00 (2006.01)
CPC B29C 51/445 (2013.01) [A61C 7/08 (2013.01); B29C 51/08 (2013.01); B29C 51/46 (2013.01); B29L 2031/753 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A device comprising: a separating element configured to thermally separate a deep-drawn thermoform film and simultaneously refine the separated deep-drawn thermoform film; a heating means configured to regulate a heating of the separating element so as to increase the temperature of the thermoform film to at least a glass transition temperature of the thermoform film; a support configured to support the deep-drawn thermoform film relatively movable with respect to the separating element; a moving mechanism configured to move the separating element along a separation contour of a deep-drawn jaw-spanning dental apparatus relative to the support; and a control unit adapted to control the heating means and the moving mechanism based on the separation contour.