US 11,890,857 B2
Low-vibration cylinder
Martin Schwiertz, Emsbüren (DE); Uwe Müller, Ahaus (DE); and Klaus Bennink, Vreden (DE)
Assigned to Flint Group Germany GmbH, Stuttgart (DE)
Filed by Flint Group Germany GmbH, Stuttgart (DE)
Filed on Feb. 18, 2020, as Appl. No. 16/793,625.
Claims priority of application No. 19158348 (EP), filed on Feb. 20, 2019.
Prior Publication US 2020/0262193 A1, Aug. 20, 2020
Int. Cl. B41F 3/54 (2006.01); B32B 1/08 (2006.01); B32B 5/18 (2006.01); B32B 25/08 (2006.01); B32B 25/14 (2006.01); B32B 27/06 (2006.01); B32B 27/18 (2006.01); B32B 27/40 (2006.01)
CPC B41F 3/54 (2013.01) [B32B 1/08 (2013.01); B32B 5/18 (2013.01); B32B 25/08 (2013.01); B32B 25/14 (2013.01); B32B 27/065 (2013.01); B32B 27/18 (2013.01); B32B 27/40 (2013.01); B32B 2250/05 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2266/0278 (2013.01); B32B 2270/00 (2013.01); B32B 2319/00 (2013.01); B32B 2375/00 (2013.01); B32B 2597/00 (2013.01); Y10T 428/13 (2015.01); Y10T 428/139 (2015.01); Y10T 428/1352 (2015.01); Y10T 428/1369 (2015.01); Y10T 428/1372 (2015.01); Y10T 428/1393 (2015.01)] 19 Claims
OG exemplary drawing
 
1. A hollow cylinder, the cylinder having a layer structure which comprises in this order, from inside to outside,
a base layer or a cylinder core,
a first compressible layer of an elastic material,
a filling layer,
a first interlayer,
a second compressible layer of an elastic material,
a second interlayer and
an outer layer,
the outer layer forming a lateral surface of the cylinder,
wherein the hardness of the first compressible layer and the hardness of the second compressible layer are less than the hardness of the base layer, the filing layer, the interlayers and the outer layer.