公开(公告)号：US20240213069A1

公开(公告)日：2024-06-27

申请号：US18528362

申请日：2023-12-04

Applicant: SEMES CO., LTD. ,  Daekhon International Inc.

Inventor： Nahyun LEE ,  Myungjin LEE ,  Jongsuk CHOI ,  Eunsang YOON ,  Seungwhan SUH ,  Junghag CHA ,  Sungjin LIM ,  Jinkwan HEO

IPC: H01L21/677 ,  B65G49/06

CPC classification number: H01L21/67709 ,  B65G49/061 ,  H01L21/6773 ,  B65G2201/0297

Abstract: Provided is a tower lift including a frame extending in a vertical direction, a carriage configured to move along the frame, a first coil arranged on a first surface of the frame, the first surface facing the carriage, a second coil arranged on the first surface of the frame and separated from the first coil, a first magnet connected to the carriage and located between the first coil and the second coil, and a second magnet connected to the carriage, located between the first magnet and the second coil, and separated from the first magnet.

公开(公告)号：US20240216724A1

公开(公告)日：2024-07-04

申请号：US18395489

申请日：2023-12-23

Applicant: SEMES CO., LTD.

Inventor： Eunsang YOON ,  Chul Jun PARK ,  Min Beom KIM ,  Seungkeun JUN

IPC: A62C2/22 ,  A62C2/24

CPC classification number: A62C2/22 ,  A62C2/24

Abstract: Provided is a fire protection apparatus and fire protection method capable of improving sealability of a sub-shutter device, the fire protection apparatus including a door frame mounted in a vertical passage between an upper floor and a lower floor of a building or in a horizontal passage between a first compartment and a second compartment of the building, a guide rail provided at a side of the door frame to guide a lift to pass through the vertical passage or to guide a carriage to pass through the horizontal passage, a main shutter device mounted on the door frame to open or close a main passage space between the door frame and the guide rail, and a sub-shutter device mounted on the main shutter device to close an internal space of the guide rail in association with the main shutter device when the main shutter device is closed.

公开(公告)号：US20240181281A1

公开(公告)日：2024-06-06

申请号：US18524742

申请日：2023-11-30

Applicant: SEMES CO., LTD.

Inventor： Doohyun BAEK ,  Eunsang YOON ,  Myungjin LEE ,  Chuljun PARK

IPC: A62C2/22

CPC classification number: A62C2/22

Abstract: The disclosure provides a shutter open-closing apparatus capable of improving producibility, assemblability, and maintainability and reducing an operating cost, a shutter open-closing system including the same, and a shutter open-closing method. The shutter open-closing apparatus includes a main body connected to a main door, which is opened and closed, to move along with movement of the main door, a main guide unit coupled to the main body, a shutter pushing unit movable on the main guide unit, a link unit rotatably connected to the shutter pushing unit to move along with movement of the shutter pushing unit, and a shutter connected to the link unit to move along with movement of the link unit, and opened and closed using a driving force for moving the main door.