US 11,919,069 B2
Drive device for a stopper for a metallurgical vessel
Roland Lorenz, Root (CH); and Erich Rollin, Menzingen (CH)
Assigned to Refractory Intellectual Property GmbH & Co. KG, Vienna (AT)
Appl. No. 17/753,090
Filed by Refractory Intellectual Property GmbH & Co. KG, Vienna (AT)
PCT Filed Jul. 3, 2020, PCT No. PCT/EP2020/068883
§ 371(c)(1), (2) Date Feb. 18, 2022,
PCT Pub. No. WO2021/032354, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 19192630 (EP), filed on Aug. 20, 2019.
Prior Publication US 2022/0274161 A1, Sep. 1, 2022
Int. Cl. B22D 41/20 (2006.01); B22D 11/103 (2006.01)
CPC B22D 41/20 (2013.01) [B22D 11/103 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Drive device for a stopper on a metallurgical vessel, comprising:
a removable housing configured to be arranged on the vessel,
height-displaceable adjustment means mounted in the housing for adjusting a height of the stopper relative to a spout of the vessel when the housing is arranged on the vessel,
a drive configured to be coupled to the adjustment means to move the adjustment means,
an upper connection element configured to connect to a support arm holding the stopper, the upper connection element being moved by the adjustment means, and
at least one bearing shaft secured in the housing, the adjustment means being mounted on the at least one bearing shaft.