US 12,434,408 B2
Nuclear structure dry cutting apparatus
Sung Jun Lee, Gwangju-si (KR); and Chae Mun Lee, Seongnam-si (KR)
Assigned to EGUN CO., LTD., Guangju-si (KR)
Appl. No. 18/275,546
Filed by EGUN CO., LTD., Gwangju-si (KR)
PCT Filed Jan. 22, 2022, PCT No. PCT/KR2022/001177
§ 371(c)(1), (2) Date Aug. 2, 2023,
PCT Pub. No. WO2022/169147, PCT Pub. Date Aug. 11, 2022.
Claims priority of application No. 10-2021-0015153 (KR), filed on Feb. 3, 2021.
Prior Publication US 2024/0091987 A1, Mar. 21, 2024
Int. Cl. B28D 7/02 (2006.01); B28D 1/08 (2006.01); G21D 1/00 (2006.01)
CPC B28D 7/02 (2013.01) [B28D 1/08 (2013.01); G21D 1/003 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A wire saw apparatus configured to collect foreign substances generated during a dry cutting process, the wire saw apparatus comprising:
a first pulley system configured to feed a wire to a structure to be cut;
a second pulley system configured to receive the wire from the structure;
a first dust-collecting pipe unit configured to surround the wire between a point of the wire that is separated from the structure after surrounding the structure and a point of the wire that enters the first pulley system; and
a second dust-collecting pipe unit configured to surround the wire between a point of the wire that reaches the structure to surround the structure and a point of the wire that escapes from the second pulley system,
wherein at least one of the first dust-collecting pipe unit or the second dust-collecting pipe unit comprises a first pipe and a second pipe having different diameters from each other, and the first pipe and the second pipe are connected to each other so as to be movable in a horizontal direction in a state in which at least a portion of the first pipe is inserted into the second pipe.