US 12,185,848 B2
Swing door system and a freezer device
Jochen Diederichs, Mainz (DE); Petr Smajser, Štramberk (CZ); Martin Rafaj, Vsetín (CZ); Michael Lammel, Aachen (DE); Benjamin Lederhofer, Langenfeld (DE); Markus Heller, Herzogenrath (DE); Jaroslav Kukulis, Roznov pod Radhostem (CZ); and Jaroslav Placek, Zenklave (CZ)
Assigned to SCHOTT AG, Mainz (DE); and SCHOTT TERMOFROST S.R.O., Valaské Meziíí (CZ)
Filed by SCHOTT AG, Mainz (DE); and SCHOTT Flat Glass CR, s.r.o., Valašské Meziříčí (CZ)
Filed on May 6, 2020, as Appl. No. 16/868,108.
Claims priority of application No. 19172797 (EP), filed on May 6, 2019; and application No. 20 2019 105 967.2 (DE), filed on Oct. 28, 2019.
Prior Publication US 2020/0352355 A1, Nov. 12, 2020
Int. Cl. A47F 3/04 (2006.01); F25D 23/02 (2006.01)
CPC A47F 3/043 (2013.01) [A47F 3/0434 (2013.01); E05Y 2900/306 (2013.01); F25D 23/028 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A swing door system for use with a freezer device, comprising:
two adjacent swing doors each having a transparent pane and a non-transparent area;
a mullion in contact with the two adjacent swing doors,
wherein the mullion has a cross-section that is selected from a group consisting of T-shaped, Y-shaped, and triangle-shaped; and
an insulation profile that is hollow with a closed continuous contour and that is attached to and extends along a length of the mullion,
wherein the insulation profile insulates the mullion against an inside of the freezer device,
wherein each non-transparent area is proximal to the mullion when the adjacent swing doors are in a closed position,
wherein the non-transparent areas and the mullion define a non-transparent region, and
wherein under a horizontal viewing angle between 0° and 180° with respect to the plane in which the two adjacent swing doors are arranged when the two adjacent swing doors are in the closed position all horizontal diameters of the non-transparent region are less than 100 mm.