公开(公告)号：EP3403981A1

公开(公告)日：2018-11-21

申请号：EP18172169.7

申请日：2018-05-14

申请人： Otis Elevator Company

发明人： TANGUDU, Jagadeesh Kumar ,  KLECKA, Michael A. ,  FARGO, Richard N.

IPC分类号： B66B9/02 ,  H02K49/10 ,  H02K7/06 ,  H02K15/03 ,  B33Y80/00 ,  B33Y10/00 ,  B22F3/105 ,  B23K9/04 ,  C23C24/04

CPC分类号： H01F7/021 ,  B22F3/008 ,  B22F3/1055 ,  B22F2999/00 ,  B23K9/048 ,  B23K9/173 ,  B23K9/23 ,  B23K20/1215 ,  B23K20/122 ,  B23K20/233 ,  B23K2101/08 ,  B23K2101/38 ,  B23K2103/08 ,  B33Y10/00 ,  B33Y80/00 ,  B66B9/025 ,  H01F13/003 ,  H01F41/0253 ,  H02K7/06 ,  H02K15/03 ,  H02K49/102 ,  B22F2202/05

摘要： An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a helical magnet on a rod using an additive manufacturing process.

公开(公告)号：EP3508749A1

公开(公告)日：2019-07-10

申请号：EP18212846.2

申请日：2018-12-17

申请人： Otis Elevator Company

发明人： MANES, Enrico ,  BARTH, Robert A. ,  LUO, Xiaodong ,  CHEN, Shihemn ,  MARVIN, Daryl J. ,  KLECKA, Michael A. ,  MISHLER, Luke A.

IPC分类号： F16F1/18 ,  B33Y80/00 ,  B66B5/16 ,  B66B5/22

摘要： An illustrative example spring includes a curved shape body having a length. The body includes a cavity that extends along at least a majority of the length. The body has a cross-section across the length that is different at a plurality of locations on the body along the length.